I discuss two questions: (1) would Duhem have accepted the thesis of the continuity of scientific methodology? and (2) to what extent is the Oxford tradition of classification/subalternation of sciences continuous with early modern science? I argue that Duhem would have been surprised by the claim that scientific methodology is continuous; he expected at best only a continuity of physical theories, which he was trying to isolate from the perpetual fluctuations of methods and metaphysics. I also argue that (...) the evidence does not support the conclusion that early modern doctrines about mathematics and physics are continuous with the subalternation of sciences from Grosseteste, Bacon, and the theologians of fourteenth-century Oxford. The official and dominant context for early modern scientific methodology seems to have been progressive Thomism, and early modern thinkers seem to have pitted themselves against it. (shrink)

A review is undertaken of the contributions of 38 classical authors, from Pythagoras in the 6th century BCE to Isidore in the 6th century CE, to the classification of the sciences. Such classifications include some that are more theoretical in function, some that are more practical. The emergence of the quadrivium and trivium is charted; the Greek concept of “enkýklios paideía” and the Latin term “artēs liberales” are defined; and the ways in which the form, content, and function (...) of science classifications change during this period are assessed. (shrink)

This work has been selected by scholars as being culturally important and is part of the knowledge base of civilization as we know it. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be (...) preserved, reproduced, and made generally available to the public. To ensure a quality reading experience, this work has been proofread and republished using a format that seamlessly blends the original graphical elements with text in an easy-to-read typeface. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant. (shrink)

I discuss two questions: (1) would Duhem have accepted the thesis of the continuity of scientific methodology? and (2) to what extent is the Oxford tradition of classification/subalternation of sciences continuous with early modern science? I argue that Duhem would have been surprised by the claim that scientific methodology is continuous; he expected at best only a continuity of physical theories, which he was trying to isolate from the perpetual fluctuations of methods and metaphysics. I also argue that (...) the evidence does not support the conclusion that early modern doctrines about mathematics and physics are continuous with the subalternation of sciences from Grosseteste, Bacon, and the theologians of fourteenth-century Oxford. The official and dominant context for early modern scientific methodology seems to have been progressive Thomism, and early modern thinkers seem to have pitted themselves against it. (shrink)

This chapter examines philosophical issues surrounding the classification of mental disorders by the Diagnostic and Statistical Manual of Mental Disorders (DSM). In particular, the chapter focuses on issues concerning the relative merits of descriptive versus theoretical approaches to psychiatric classification and whether the DSM should classify natural kinds. These issues are presented with reference to the history of the DSM, which has been published regularly by the American Psychiatric Association since 1952 and is currently in its fifth edition. (...) While the first two editions of the DSM adopted a theoretical (psychoanalytic) and etiological approach to classification, subsequent editions of the DSM have adopted an atheoretical and purely descriptive (“neo-Kraepelinian”) approach. It is argued that largest problem with the DSM at present—viz., its failure to provide valid diagnostic categories—is directly related to the purely descriptive methodology championed by the DSM since the third edition of the DSM. In light of this problem, the chapter discusses the prospects of a theoretical and causal approach to psychiatric classification and critically examines the assumption that the DSM should classify natural kinds. (shrink)

Volume 24, Issue 11, November 2024, Page 24-26.

The Sciences of the Qurʾān contain information about the process of Qurʾān and its structural characteristics, language and stylistic features, as well as statistical data on the content of the Qurʾān. This information, which contributes significantly to the understanding of the Qurʾān, is generally classified within the relevant narratives and the classifications are sometimes associated with verses. In this context, the way in which the Sciences of the Qurʾān explain the verses, which do not act solely on methodical (...) premises, differs from the Qurʾānic exegesis books. In the Sciences of the Qurʾān, the subject of revelation forms are classified within the frame of the narrations, and the 51st verse of the Sūrat al-Shūrā is frequently referred to. In other words, the related classifications are matched with the 51st verse of the Sūrat al-Shūrā. In the exegesis, this verse is handled more comprehensively considering its context and the literal possibilities. There are two remarkable comments about this verse in terms of its reflection in the revelation classifications. However, on the contrary, it is possible to encounter examples where the verse is subject to specific discussions. One of them belongs to Jār Allāh al-Zamakhsharī (d.538/1144) and the other to Nāṣir al-Dīn al-Bayḍāwī (d. 685/1286). When the exegesis of al-Zamakhsharī and al-Bayḍāwī are examined, it is seen that this verse is the subject of ru’yat Allah (seeing Allah) discussion between Muʿtazila and Ahl al-Sunnah and the classifications are made in this context. However, it is interesting to note that the classification of al-Zamakhsharī is more suitable for the perspective of the Sciences of the Qurʾān. In this study, the codes of the determinations made by al-Zamakhsharī and al-Bayḍāwī related to the 51st verse of Sūrat al-Shūrā was read on the commentaries. While al-Zamakhsharī explains this verse as a proof for the argument that God cannot be seen, al-Bayḍāwī develops an example of reactionary interpretation upon Zamakhsharī’s view. The Sciences of the Qurʾān (as a discipline), which opens a separate title to the ways of revelation, uses this verse as a template and takes it away from the discussion. In the study, the subjective dimensions of the discussion and classifications made in the context of this verse were evaluated. As a result, it is concluded that a classification similar to classification of al-Zamakhsharī has been made in the literature of the Sciences of the Qurʾān as it provides more comprehensive framework. Summary: During the period of revelation of the Holy Qurʾān not only the sunnah and actions of the Prophet which explained the Holy Qurʾān, but also various sources of information based on language and consultation, were used in order to understand the Holy Qurʾān. The first people introduced to the revelation used their own language/oratory skills, which were natural them, to understand the Qurʾān and were also able to observe the events and problems that brought about the revelation of the verses. These elements, used by those first people for understanding the Qurʾān, were readily available in their society. Therefore, understanding of the Qurʾān while the Prophet was still alive did not require a codification of those resources or treatment of the matter on a theoretical level. Subsequent generations mostly compensated the lack of those advantages by the use of the Sciences of the Qurʾān books penned individually after 2nd Century (A.H.), and those written systematically under the collective name "the Sciences of the Qurʾān" starting from the 6th century (A.H.). These works covered many subjects such as the beginning of the revelation, the accentuation of the Qurʾān, the physical development process of the Qurʾānic text, information based on observation as well as the tone and content of the Qurʾān and provided information details for Qurʾānic interpretations. Over time, this information was classified in the Sciences of the Qurʾān literature, organized under various relevant titles and enhanced with examples, numerical and qualitative information. One of the main topics of the Sciences of the Qurʾān is the subject of “revelation and its forms”. In the literature of the Sciences of the Qurʾān, the classifications made under this topic are generally associated with the verse 51 of Sūrat al-Shūrā. In this verse, the forms of communication between Allah (Jalla Jalaluhu) and the servant/prophet are categorized. The context of the verse 51 of the Sūrat al-Shūrā in the tafsīr literature is different from the context in the Sciences of the Qurʾān literature. As a matter of fact, while this verse is examined in detail with respect to the context, concept analysis, and the possibilities of i‘rāb (classical Arabic grammar), it is merely referred to in the Sciences of the Qurʾān. This is due to the fact that the determinations and classifications made in the Sciences of the Qurʾān are shaped mostly in the light of the historical context and narrations of the subject.It is also possible to encounter examples of tafsīr where the 51st verse is made the topic of detailed discussions. There are two remarkable comments about this verse in terms of its reflection in the revelation classifications. One of them belongs to Jār Allāh al-Zamakhsharī (d.538/1144) and the other belongs to Nāṣir al-Dīn al-Bayḍāwī (d. 685/1286). The tafsīr s of al-Zamakhsharī and al-Bayḍāwī make it clear that this verse is the subject of ru’yat Allah discussion between the Muʿtazila and Ahl al-Sunnah and the classifications are made accordingly. The fact that i‘rāb examinations of the two authors are similar and both took into account other linguistic possibilities despite their preferences, which also prove that the points of conflict are not literal. Al-Zamakhsharī thinks that this verse determines the way Allah speaks not only with his prophets but also with all people. According to al-Zamakhsharī, the 51st verse refers to the three forms of communication that takes place between God and any of His servants. Allah communicates with His servants; a) through inspiration, inspiration to heart or through dreams, b) by making His words heard through certain channels, c) by sending one of his angels as a messenger. In the verse, the first is expressed as revelation, the second is to speak behind a veil, and the third is to send a messenger. According to al-Zamakhsharī, Allah's inspiration to the mother of Moses, the dream that He showed to Abraham regarding the sacrificing of his son and inspiration of Psalms to David, all relate to the revelation concept mentioned in the first option. Al-Zamakhsharī believes that revelation from behind a veil is an adage. This adage can be compared to a king speaking with one of those at his service behind a veil/curtain, where the person hears the voice of the king but cannot see him. Allah only spoke to Moses and angels in that manner, and sent angels to speak to His other servants/prophets.As a response to al-Zamakhsharī, al-Bayḍāwī interpreted the verse concisely explaining the 'revelation' (وحيا) as a secret word that is quickly understood. Because, in terms of its nature, revelation is not a word made up of sound waves that come one after another to make words. In the verse, this word refers both to the Night Journey (Mi‘rāj) and the talk mentioned in the hadiths regarding the ru’yat Allah, and Allah speaking to Moses without Moses seeing Allah. However, in the verse min verâi ḥicâb/attributed to the word 'revelation 'من وراء حجاب makes it clear that the expression refers to a form of speech in which Allah is heard but not seen. Therefore, the word 'revelation' refers to a mutual talk and according to al-Bayḍāwī, this is proof that ru’yat Allah is possible. The fact that the classifications made in the Sciences of the Qurʾān literature agrees with the classification of al-Zamakhsharī, not al-Bayḍāwī. This result is closely related to the structural features of the Sciences of the Qurʾān in which authors strive to make general explanations that are beyond sectarian preferences and views. Understanding the verse as a conversation between Allah and man, and not between Allah and His prophet, provides a more comprehensive classification in terms of the use of revelations (not only the use of the word revelation) in the Qurʾān. Thus, the address that was made to Abraham in his dream, the revelation of to Moses' mother, and inspiration to our holy Prophet and other people can be interpreted according to this verse. In addition, the ru’yat Allah debate was excluded from the subject in the classifications made in the Sciences of the Qurʾān and implication of the verse was limited to the talks made in a worldly manner. (shrink)

: This paper discusses the American scientist and philosopher Charles S. Peirce's (1839–1914) classification of the sciences from the contemporary perspective of interdisciplinary studies. Three theses are defended: (1) Studies on interdisciplinarity pertain to the intermediate class of Peirce's classification of all science, the sciences of review (retrospective science), ranking below the sciences of discovery (heuretic sciences) and above practical science (the arts). (2) Scientific research methods adopted by interdisciplinary inquiries are cross-categorial. Making them (...) converge to an increasing extent with the sciences of discovery, especially the methodeutic of normative logic, is one of the future challenges for studies on interdisciplinarity. (3) The overall structure of Peirce's classification, were it to be applied in today's situation, would not, in any major respect, be radically different from what it was designed to reflect a hundred years ago, in spite of the virtually exponential creation and production of new domains and the massive increase in investment in research and scientific publication. Accordingly, charges that the sciences of discovery are becoming ever more fragmented are not new. (shrink)

Islamic scholars, who encountered works on the classification of sciences together with their translation activities, formed their own classification traditions by classifying the sciences from different perspective. These classifications, which position the sciences by considering the connection between reason and revelation, and pointing to the hierarchy and relationship between the sciences, also reflect the understanding of science on which they are based. In this context, we can talk about two different classification traditions put (...) forward by Islamic philosophers on the one hand and Islamic scholars on the other. At this point, Tashkoprīzāda (d. 958/1561), one of the 16th century Ottoman scholars, created an original classification of sciences that influenced the future by benefiting from both traditions. Tashkoprīzāda, who sees the classification of sciences as a branch of science at the same time, has written four valuable books in this field, especially his book called Miftāhu’s-sa‘āda. These works contain rich information about the history of sciences as well as the classification of sciences. He determined the sciences of fiqh and usūl al-fiqh as a sub-branch of shar‘ī sciences and gave both historical and current information about these sciences by focusing on the works of influential scholars. Tashkoprīzāda, who is followed Hanafi sect and saw the Hanafi school as the most virtuous one, handled the fiqh section by putting the Hanafi school in the center. One of the remarkable points is that Tashkoprīzāda completed the part in which he dealt with the historical process of Hanafi fiqh with two great scholars, such as Mewlānā Calāleddīn al-Konewī (v. 672/1273) and Sheikh Badraddin as-Simāwī (v. 823/1420), who stood out with their Sufism. It is also important in terms of showing the mystic environment in which Tashkoprīzāda was influenced and his approach to the relationship between tasawwuf and fiqh. Another point that makes Tashkoprīzāda’s works stand out in terms of the history of sciences is that he mentions famous and acceptable works by referring to the curriculum of his period and surroundings. Thus, Tashkoprīzāda reveals the classification of sciences as a whole with its history, hierarchy and curriculum. (shrink)

Effective and specifically targeted social and therapeutic responses for antisocial personality disorders and psychopathy are scarce. Some authors maintain that this scarcity should be overcome by revising current syndrome - based classifications of these conditions and devising better biocognitive classifications of antisocial individuals. The inspiration for the latter classifications has been embedded in the Research domain criteria approach (RDoC). RDoC - type approaches to psychiatric research aim at transforming diagnosis, provide valid measures of disorders, aid clinical practice, and improve health (...) outcomes by integrating the data on the genetic, neural, cognitive, and affective systems underlying psychiatric conditions. In the first part of the paper, we discuss the benefits of such approaches in comparison to the dominant syndrome-based ones and review recent attempts at building biocognitive classifications of antisocial individuals. Other researchers, how ever, have objected that biocognitive approaches in psychiatry are committed to an untenable form of explanatory. (shrink)

In a world of ever growing specialization, the idea of a unity of science is commonly discarded, but cooperative work involving cross-disciplinary points of view is encouraged. The aim of this paper is to show with some textual support that Charles S. Peirce not only identified this paradoxical situation a century ago, but he also mapped out some paths for reaching a successful solution. A particular attention is paid to Peirce's classification of the sciences and to his conception (...) of science as a collective and cooperative activity of all those whose lives are animated by the desire to discover the truth. -/- . (shrink)

Previously published: Paris: Ancienne librairie Germer Bailliaere, 1901.

In the introduction to his famous book, La Science et l’hypothèse, Poincaré remarks on the necessary role and legitimacy of hypotheses. He establishes a triple classification of hypotheses, dividing them into verifiable, useful, and apparent. However, in chapter 9, entitled ‘Les hypothèses en physique’, he gives a slightly different triadic classification: natural hypotheses, indifferent hypotheses, and real generalizations. The origin of this second classification is a lecture given at the International Congress of Physics, Paris, 1900. What are (...) the similarities and differences between these two classifications? My main purpose is to provide a possible equivalence between the two classifications in order to clarify the role of hypotheses in Poincaré’s epistemology of natural science. The discussion will be based on the two fundamental texts mentioned above and on the contrast between Poincaré’s use of the notion of hypothesis and that of some of his contemporaries. (shrink)

Citizen science projects have started to utilize Machine Learning to sort through large datasets generated in fields like astronomy, ecology and biodiversity, biology, and neuroimaging. Human–machine systems have been created to take advantage of the complementary strengths of humans and machines and have been optimized for efficiency and speed. We conducted qualitative content analysis on meta-summaries of documents reporting the results of 12 citizen science projects that used machine learning to optimize classification tasks. We examined the distribution of tasks (...) between citizen scientists, experts, and algorithms, and how epistemic agency was enacted in terms of whose knowledge shapes the distribution of tasks, who decides what knowledge is relevant to the classification, and who validates it. In our descriptive results, we found that experts, who include professional scientists and algorithm developers, are involved in every aspect of a project, from annotating or labelling data to giving data to algorithms to train them to make decisions from predictions. Experts also test and validate models to improve their accuracy by scoring their outputs when algorithms fail to make correct decisions. Experts are mostly the humans involved in a loop, but when algorithms encounter problems, citizens are also involved at several stages. In this paper, we present three main examples of citizens-in-the-loop: when algorithms provide incorrect suggestions; when algorithms fail to know how to perform classification; and when algorithms pose queries. We consider the implications of the emphasis on optimization on the ideal of science and the role of citizen scientists from a perspective informed by Science and Technology Studies and Information Systems. Based on our findings, we conclude that ML in CS classification projects, far from being deterministic in its nature and effects, may be open to question. There is no guarantee that these technologies can replace citizen scientists, nor any guarantee that they can provide citizens with opportunities for more interesting tasks. (shrink)

Masaryk’s philosophical approach to reality is largely characterised by its orientation towards the positivism of Auguste Comte, which Masaryk sought to offset with the psychologism of J. S. Mill. The combination of these positivist approaches became the positive starting point for Masaryk’s ethics. But that was not the only influence on his ethics. Masaryk’s German translation of Hume’s book, titled Eine Untersuchung über die Prinzipien der Moral von David Hume (1883), reveals that the main stimuli that shaped Masaryk’s ideas about (...) ethics came from David Hume. Although the need for scientific evidence became a fundamental principle of Masaryk’s thought, the need to objectively anchor ethics in rational theism necessitated in this area a departure from his positivist outlook. Masaryk’s lectures on practical philosophy attest to this fact. The reason for his departure from a positivist stance was due to the metaphysical nature of his concept of psychology. (shrink)

The question whether Kuhn's theory of scientific revolutions could be applied to mathematics caused many interesting problems to arise. The aim of this paper is to discuss whether there are different kinds of scientific revolution, and if so, how many. The basic idea of the paper is to discriminate between the formal and the social aspects of the development of science and to compare them. The paper has four parts. In the first introductory part we discuss some of the questions (...) which arose during the debate of the historians of mathematics. In the second part, we introduce the concept of the epistemic framework of a theory. We propose to discriminate three parts of this framework, from which the one called formal frame will be of considerable importance for our approach, as its development is conservative and gradual. In the third part of the paper we define the concept of epistemic rupture as a discontinuity in the formal frame. The conservative and gradual nature of the changes of the formal frame open the possibility to compare different epistemic ruptures. We try to show that there are four different kinds of epistemic rupture, which we call idealisation, re-presentation, objectivisation and re-formulation. In the last part of the paper we derive from the classification of the epistemic ruptures a classification of scientific revolutions. As only the first three kinds of rupture are revolutionary (the re-formulations are rather cumulative), we obtain three kinds of scientific revolution: idealisation, re-presentation, and objectivisation. We discuss the relation of our classification of scientific revolutions to the views of Kuhn, Lakatos, Crowe, and Dauben. (shrink)

„Errors are the greatest obstacles to the progress of science; to correct such errors is of more practical value than to achieve new knowledge,“ asserted Eugen Bleuler. Basic error of several prevailing classification schemes of pathological conditions, as for example ICD-10, lies in confusing and mixing symptoms with diseases, what makes them unscientific. Considering the need to bring order into the chaos and light into terminological obscureness, I introduce the Causal classification of diseases originating from the notion of (...) bodily wholeness and causality of its loss. (shrink)

In Asian countries, there is a tradition that a rabbit, known as the Moon rabbit, lives on the Moon. Typically, two reasons are mentioned for the origin of this tradition. The first reason is that the color pattern of the lunar surface resembles the shape of a rabbit. The second reason is that both the Moon and rabbits are symbols of fertility, as the Moon appears and disappears (i.e., waxing and waning) cyclically and rabbits are known for their high fertility. (...) Considering the latter reason, is the color pattern of the lunar surface not similar to a rabbit? Here, the similarity between rabbit and the lunar surface pattern was evaluated using seven AI architectures. In the test conducted with Contrastive Language-Image Pre-Training (CLIP), which can classify images based on given words, it was assumed that people frequently observe the Moon in the early evening. Under this condition, the lunar surface pattern was found to be more similar to a rabbit than a face in low-latitude regions, while it could also be classified as a face as the latitude increases. This result is consistent with that the oldest literatures about the Moon rabbit were written in India and that a tradition of seeing a human face in the Moon exists in Europe. In a 1000-class test using seven AI architectures, ConvNeXt and CLIP sometimes classified the lunar surface pattern as a rabbit with relatively high probabilities. Cultures are generated by our attitude to the environment. Both dynamic and static similarities may be essential to induce our imagination. (shrink)

The author considers some essential problems of philosophical considerations of disciplinary classifications in sciences with the reference to some Russian science classification systems. He de­velops the working definition of science and some criteria which make it possible to understand the principles of these classifi­cations. He also observes some modern Russian approaches to the problem of disciplinary classification (in particular, Bonifatiy M. Kedrov’s approach). The author emphasizes some special as­pects of classifications in cognitive science, computer science, and biology.

A numerical classification was performed on 69 elements with 54 chemicaland physicochemical properties. The elements fell into clusters in closeaccord with the electron shell s-, p- andd-blocks. The f-block elements were not included forlack of sufficiently complete data. The successive periods ofs- and p-block elements appeared in an ovalconfiguration, with d-block elements lying to one side. Morethan three axes were required to give good representation of thevariation, although the interpretation of the higher axes is difficult.Only 15 properties were scorable (...) for the noble gases, but despite thepaucity of properties reflecting chemical reactivity, analysis of the 69elements on these properties still showed the major features seen fromthe full set. (shrink)

The classification of the sciences is one of the most discussed and analysed aspects of Peirce’s corpus of work. I propose that Peirce’s attempt at systematising the sciences is characterised by a distinctive historicity, which I construe in two complementary senses. First, I investigate Peirce’s classification as part of a broader nineteenth-century move toward classifying the sciences, a move that was at the same time motivated by social and epistemological goals. I claim that this re-contextualisation (...) adds an entirely new layer to the otherwise distinctively internalist readings of Peirce’s classification. I then look at how Peirce’s scheme, especially in the form it displayed in the early 1890s, relates to his own historical writings, particularly his history of science. Looking at Peirce as a historical actor in his own right through the lens of his classification, I claim, is indispensable to understand the contemporary relevance of his contributions to the history and historiography of the sciences. (shrink)

Previously published: Paris: Ancienne librairie Germer Bailliaere, 1901.

Failings of a categorical systemFor decades, standardized classification systems have attempted to define psychiatric disorders in our mental health care system, with the Diagnostic and Statistical Manual of Mental Disorders (5th ed.; DSM-5; American Psychiatric Association (APA), 2013) and International Statistical Classification of Diseases and Related Health Problems 10th revision (ICD-10; World Health Organization, 2010) being internationally best-known. One of the major advantages of the DSM must be that it has seriously diminished the international linguistic confusion regarding psychiatric (...) disorders. Since its introduction, it contributed extensively towards one common international language for defining and conceptualizing psychiatric disorders. Strikingly, within the field of psychological testing a similar step forward seems to have not yet been taken. At present, there exists no international standard for the use of psychological tests that takes the definition of a specific symptom as listed in DSM-5 as its starting point, and reliably and validly measures this symptom. Rather, the majority of tests are measuring constructs consisting of a multitude of symptoms. For example, the Beck’s Depression Inventory (Beck et al., 1996) measures core symptoms of depression summing up to a depression score. Accordingly, we believe it is time for a change. The diagnostics of psychiatric disorders, where disorders are defined as nosological units with a single cause, a single organic substrate, and a single time course, has been problematic for centuries. The field of psychiatry has always been ambivalent about its desire to follow a medical model (Blaney, 2015), but afflicted due to its definitions of pathology. The definition of a psychiatric disorder in DSM-5 offers little room for a clear cut pathogenesis and harsh demarcation of syndromes. This is reflected in the DSM-5, where it states: “A mental disorder is a syndrome characterized by clinically significant disturbance in an individual’s cognition, emotion regulation, or behavior that reflects a dysfunction in the psychological, biological, or developmental processes underlying mental functioning” (APA, 2013, p.20). An unfortunate and recognized consequence of this definition within the current system is that many symptoms overlap within categories of psychiatric disorders and patients end up diagnosed with many co-morbid disorders.Two fundamental problemsRegardless of new attempts to improve the diagnostics of psychiatric disorders, the DSM-5 represents the status quo. Consequently, the distinction between diagnosis and classification remains substantial and more than a discussion on semantics. We identify two fundamental problems within the current framework. Generally, a psychiatric diagnosis is considered to be descriptive (Hengeveld and Schudel, 2003). The clinician will describe a syndrome (its nature, timespan, and severity) within the framework of a disorder, and often include a differential diagnosis, predisposing protective or vulnerability factors, and provoking or maintaining factors. Within the DSM-5 framework, a similar ‘approach to clinical case formulation’ is taken (APA, 2013, p. 19). Evidently, a descriptive diagnosis has a hypothetical character. It consists of the clinician’s hypothesis and is based on his or hers professional considerations according to the abovementioned factors. Once the clinician has formulated a descriptive diagnosis, it is then complementary ‘translated’ into a DSM-5 classification. Herein lies the problem. For the layman, the existence of this distinction between diagnosis and classification is usually unknown. Preceding treatment, the clinician will give the client a classification of the existing psychiatric problems and the client may attribute more meaning to it than appropriate, thereby fostering the risk of reification. Second, the DSM-5 is a categorical system. Thus, individual disorders are regarded as discrete units – ‘you either have it, or you don’t’. DSM-5 states about this: “(…) scientific evidence places many, if not most, disorders on a spectrum with closely related disorders that have shared symptoms, shared genetic and environmental risk factors (…)”. And “(…) we have come to recognize that the boundaries between disorders are more porous than originally perceived.” (APA, 2013, p. 6). This leads to a fundamental problem. Because the overwhelming majority of psychiatric disorders examined thus far using taxometric methods appear to be dimensional in nature (Haslam, 2003; Widiger and Samuel, 2005), consequently all of their categorizations become artificial and debatable. Even though DSM-5 took a modest step towards a more dimensional approach, its core remains categorical. To illustrate, consider the Borderline Personality Disorder (BPD). This classification consists of nine diagnostic criteria of which a minimum of five need to be present for the diagnosis of BPD. A simple numerical combination algorithm leads to a staggering number of 256 distinct presentations of BPD (Albion et al., 2013). Due to this chameleon-like nature, the disorder’s diagnostic validity becomes questionable. Strikingly, this number is relatively small when compared to other conditions, e.g., there are 636,120 ways to have posttraumatic stress disorder (Galatzer-Levy and Bryant, 2013).DSM-5 does propose an alternative model for personality disorders based on personality functioning and traits (APA, 2013, p. 761), as a possible answer to the problem that most patients fit with multiple co-morbid personality disorders or to the category of personality disorder not otherwise specified. In November 2012, the chair committee of APA decided to move this alternative model to section III of DSM-5 and to sustain the categorical system in section II. A potential solutionDSM-5 and its predecessors have brought about an invaluable improvement regarding the formulation of a common international language for psychiatric disorders. However, the individual disorders fit poorly with its starting point of discrete units and strict boundaries. Van Os (2014) has argued for a better balance between the categorical and personalized aspects of psychiatric disorders. We argue for a two-step approach.Particularly due to the ‘weak boundaries’ between disorders, it might be beneficial to limit ourselves by merely categorizing clients into the main categories of the DSM-5 according to their most prominent symptoms (Van Os, 2014), i.e. their main complaint. In other words, clinicians could first ask themselves whether the symptomatology is concerning a neurodevelopmental disorder, or a bipolar and related disorder, or a depressive disorder, and so on. It will drastically reduce the over 400 classifications in DSM-5 down to 20 categories. Van Os (2014) even argues to combine some of the main categories, reducing this number even further to 15 categories. The advantages of reducing the over 400 classifications are fivefold: 1) a syndrome, being an aggregation of symptoms, creates a false relation between symptoms that are that are already heterogeneous themselves; 2) 15 broad categories are functional: it results into a very heterogeneous group of clients within a category and thus prevents stereotypes and invites further personalizing of complaints; and 3) a dimensional measure of a symptom rather than a syndrome will correspond better with the client regardless of it not providing the complete picture. Focusing on the main complaint will indicate where there is an immediate need for care (Van Os, 2014); 4) it will allow clinicians to recognise subthreshold conditions more easily (Magruder and Calderone, 2000); and 5) it might facilitate the development of clear demarcations between normal and abnormal functioning (Kessler, 2002; Widiger and Samuel, 2005). Please, see also Table 1.This also fits well within scientific advances, as thus far strongest evidence has been found for a distinction between internalizing and externalizing disorders, even superseding these 15 main categories (DSM-5; APA, 2013, p.13, but see Weiss et al., 1998). The second step would concern the personalized aspect, which we argue to define on a level of core symptoms of the specific main category, to be agreed upon later. To assess these core symptoms, the field of psychological testing could develop an internationally applicable instrument to reliably and validly measure each (core) symptom on a dimensional scale. Many of these instruments are readily available and have proven its psychometric properties within scientific research. Elements from these instruments could be easily transformed to work within the new system. Within the field of psychology, this approach could aid development of a common international language to define symptoms, analogous to the field of psychiatry. Importantly, current psychological testing mainly implies the use of self-report measures. This leads to an abundance of auto-amnestic information. To increase the reliability and validity of psychological tests to assess DSM-5 symptoms, it may be important to add two additional information resources. This would entail psychological tests where a next of kin answers questions about the symptom of the client, and psychological tests that include the clinicians’ judgment, such as structured clinician-based interviews. Conversely, we also need to acknowledge the well-known limitations of clinical judgment (e.g., Faust, 1986; Garb, 1998). Advantages of a new frameworkThe changes we suggest have big implications and are not easily implemented in the current framework. Clients may prefer the comfort of a single clear label, similar to what they are used to in other areas of medicine. Health insurance providers and policy makers may argue for single labels as well. Therefore, it would require a lot of explanation from our clinicians to promote a change. Our suggestions for broader categories may not disambiguate the current situation better than the existing approach, but it will promote personalisation of health care. Difficulties in diagnostic reliability will remain in disorders that fall on the boundaries of the taxons, e.g., schizoaffective disorder versus bipolar disorder with psychotic characteristics, which may benefit from further study. There are also some politically tinged questions to keep in mind: How will we finance our health care, and how will we ensure a gradual transition from the current financing system, including clients who already have their labels? What about visitations from insurers and health inspection? How can they control for a good standard of quality in health care when considering the increasing heterogeneity? Nevertheless, we argue that the benefits outweigh the disadvantages. We will see a shift from a categorical to a personalized approach, which will lead to less (self) stigmatizing, less estrangement, and it will challenge reification thinking. DSM-V states that “a reformulation of research goals should also keep DSM-5 central to the development of dimensional approaches to diagnosis that will likely supplement or supersede current categorical approaches to diagnosis in coming years” (APA, 2013, p. 13). Our proposition for psychological testing on symptom level could contribute to this development. Furthermore, this new approach will do more justice to the heterogeneity of symptoms within and outside of classification categories, see also Table 1. Moreover, in this new approach we join forces of expert knowledge from the fields of psychiatry and psychological science. Finally, it offers new and potentially better opportunities to map health care needs. This in turn will lead to a better interface for allocation of appropriate treatment. It will present a clearer picture of when preventative care is preferred over treatment and vice versa. Importantly, health care needs will be more closely attuned to the ‘own story’ of the client.We argue for the national and international psychological associations in Europe and the United States of America to support the idea of a collective approach to develop an internationally standardized psychological testing battery to reliably assess all the core symptoms of the main categories in DSM-5. (shrink)

La classificazione delle scienze di Pietro d'Abano costituisce un'interessante riformulazione della classificazione analoga, proposta da Aristotele in Metaph. VI, e della teoria degli abiti dianoetici, proposta da Aristotele in Eth. Nic. VI. Come risulta dal Conciliator per quanto concerne la medicina e dal Lucidator per quanto concerne l'astronomia, Pietro segue la classificazione aristotelica e le interpretazioni che di essa erano state date nel medioevo , aggiungendovi come contributo originale l'introduzione di una parte pratica sia nella medicina che nell'astronomia , dove (...) quest'ultima deriva da Tolomeo e dagli Arabi. Peter of Abano's classification of the sciences is an interesting reformulation of the analogous classification proposed by Aristotle in Metaphysics VI, and of Aristotle's theory of the dianoetic habits found in Nichomachean Ethics VI. As apparent in the Conciliator for medicine and in the Lucidator for astronomy, Peter follows the Aristotelian classification and the interpretations of it given in Middle Ages , adding as his own original contribution the introduction of a practical part on medicine and on astronomy , the latter derived from Ptolemy and the Arabs. (shrink)

The study of complexity and optimization in decision theory involves both partial and complete characterizations of preferences over decision spaces in terms of real-valued monotones. With this motivation, and following the recent introduction of new classes of monotones, like injective monotones or strict monotone multi-utilities, we present the classification of preordered spaces in terms of both the existence and cardinality of real-valued monotones and the cardinality of the quotient space. In particular, we take advantage of a characterization of real-valued (...) monotones in terms of separating families of increasing sets to obtain a more complete classification consisting of classes that are strictly different from each other. As a result, we gain new insight into both complexity and optimization, and clarify their interplay in preordered spaces. (shrink)

What is science? Is there a real difference between science and myth? Is science objective? Can science explain everything? This Very Short Introduction provides a concise overview of the main themes of contemporary philosophy of science. Beginning with a short history of science to set the scene, Samir Okasha goes on to investigate the nature of scientific reasoning, scientific explanation, revolutions in science, and theories such as realism and anti-realism. He also looks at philosophical issues in particular sciences, including (...) the problem of classification in biology, and the nature of space and time in physics. The final chapter touches on the conflicts between science and religion, and explores whether science is ultimately a good thing. (shrink)

C.S. Peirce, the American philosopher and a principal figure in the development of the modern study of semiotics, struggled, mostly during his later years, to work out a systematic method for classifying sciences. By doing this, he hoped to define more clearly the various tasks of these sciences by showing how their individual effects are interrelated and how these effects, considered in their interrelations, establish pragmatic meanings for each individual science. Much of his work was centered on the (...) meaning and function of logic in relation to other areas of human knowledge. By rightly defining the work of logic, Peirce argued, the work of the other sciences could be pursued with more rigorous reasoning. Beverley Kent closely examines the published and unpublished writings of Peirce and carefully attends to the chronological development of his systems of classification; she thereby shows for the first time in the scholarly literature how seeming contradictions in Peirce's evolving classification are really part of an increasingly clear position. Logic, Peirce came to understand, is actually dependent on ethics and aesthetics for its principles. Kent shows how Peirce's working out of the classification of logic in relation to other sciences is a clue to the significant differences between his early and late philosophy and, perhaps even more important, to a reading of his more general claims for a philosophy of "pragmaticism." This work will be of interest to readers of Peirce and American philosophy, to historians of logic and semiotics, and to those more generally interested in the history of systems of knowledge-classification. (shrink)

The Folk Classification of Ceramics: A Study of Cognitive Prototypes provides a general understanding of folk classification that compares cognitive structures across cultures through anthropological field studies. The topic of this book, the structure and use of folk categories, is relevant to all cognitive sciences and is distinctly anthropological in examining variation among subcultural groups and change through time. The study of variation and change illuminates aspects of category structure that would not be envisioned from experiment or (...) introspection. This text concentrates on the study of folk classification of artifacts on ceramic vessels, focusing on gross social groupings such as "potters” or "traditional villages”. Some topics discussed include the exploring interview techniques; structure of vessel categories; subcultural variation; and semantic change. This publication is a good reference to students studying folk classification and other disciplines such as cognitive psychology, linguistic semantics, and artificial intelligence. (shrink)