It is thought that just as hunger itself, the expectancy to eat impacts attention and cognitive control toward food stimuli, but this theory has not been extensively explored at a behavioral level. In order to study the effect of expectancy to eat on attentional and cognitive control mechanisms, 63 healthy fasting participants were presented with an affective priming spatial compatibility Simon task that included both food and object distracters. The participants were randomly assigned to two groups: an “immediate expectancy” group (...) made up of participants who expected to eat immediately after the task and a “delayed expectancy” cohort made up of individuals who expected to eat a few hours later. Slower reaction times toward the food and non-food distracters and a more pronounced effect on the RTs in the incompatible condition [i.e., the Simon effect ] were noted in both groups. The effect of the food and non-food distracters on the RTs was more pronounced in the immediate with respect to the delayed expectancy group. The magnitude of the SE for the food and the non-food distracters was also greater in the immediate with respect to the delayed expectancy group. These results seem to indicate that when the expectancy to eat is short, the RTs are delayed, and the SE is more pronounced when food and non-food distracters are presented. Instead, when the expectancy to eat is more distant, the distracters have less of an effect on the RTs and the correspondence effect is smaller. Our results suggest that the expectancy to eat can modulate both attention orienting and cognitive control mechanisms in healthy fasting individuals when distracting details are competing with information processing during goal directed behavior. (shrink)

Rhodopsin, upon activation by light, transduces the photon signal by activation of the G‐protein, transducin. The well‐studied rhodopsin/transducin system serves as a model for the understanding of signal transduction by the large class of G‐protein‐coupled receptors. The interactive form of rhodopsin, R*, is conformationally similar or identical to rhodopsin's photolysis intermediate Metarhodopsin II (MII). Formation of MII requires deprotonation of rhodopsin's protonated Schiff base which appears to facilitate some opening of the rhodopsin structure. This allows a change in conformation (...) at rhodopsin's cytoplasmic surface that provides binding sites for transducin. Rhodopsin's 2nd, 3rd and putative 4th cytoplasmic loops bind transducin at sites including transducin's 5 kDa carboxyl‐terminal region. Site‐specific mutagenesis of rhodopsin is being used to distinguish sites on rhodopsin's surface that are important in binding transducin from those that function in activating transducin. These observations are consistent with and extend studies on the action of other G‐protein‐coupled receptors and their interactions with their respective G proteins. (shrink)

In perception science, an alternative to focusing on individual sensory systems is to describe the environment to be perceived. We focus on the emergent dynamics of human-environment interactions as an important category of the environment to be perceived. We argue that information about such dynamics is available in subtle patterns of movement variability that, of necessity, stimulate multiple sensory systems.

Bhartṛhari, the famous Indian linguistic philosopher (V CE) in his ‘Vākyapadīya’ discussed different doctrines on the nature of language, tending to demonstrate, that each of the doctrines is justified in a certain context and represents a certain aspect of reality. Modern scholars usually designate Bhartṛhari’s philosophy as perspectivism, though there are also disagreements with this interpretation. E.g. G. Cardona claims that Bhartṛhari’s perspectivism is generally exaggerated, and the true teaching expressed in VP is the monistic theory of the “Pāṇini-darśana”. So, (...) the concept of Bhartṛhari's perspectivism needs to be further eleborated. In this paper two characteristic features of Bhartṛhari’s perspectivism are discussed, in order to clarify the essence of his philosophical strategy: (1) Functional attitude; (2) Relative incompleteness of every single doctrine. These features elucidate the essence of Bhartṛhari's philosophical method and provide us with the key to the problem of the balance between monistic and pluralistic tendencies in the ‘Vākyapadīya’. (shrink)

The line of thought from which contemporary Social Science has come forth was occupied with problems of public policy in a way which has since become very much less prominent in the work of social scientists. The classic figures of social thought —Aristotle, Plato, Adam Smith, Montesquieu, Jeremy Bentham, James and John Stuart Mill, Ricardo, Hobbes and Locke, Burke, Machiavelli and Hegel—were all involved in the consideration of the fundmental problems of policy from the point of view of the man (...) who had to exercise power and to make practical decisions. Even where they themselves lived in remoteness from practical affairs the clarification of the standards for the judgment and guidance of public policy was always close to the centre of their attention. The politician's problems, reduced to fundamentals, were their problems. The problem of maintaining order through the prince's exercise of power was the point of departure of classical political philosophy; it was extended by modern liberalism to the maintenance of liberty in a framework of order. Political philosophy was regarded by those who professed it, as a means of enlightening rulers—and citizens—as to the right ends and the approximate means. The great ancestor of modern empirical social research, Sir William Petty, who regarded his task as the quantitative matter-of-fact description of what existed, viewed his problem as set by the prince's need to safeguard and maximise his power. Early economic theory accepted the same task. Even after mercantalism gave way to liberalism, economic theory was still intended to be a guide to policy. (shrink)

Although the equally pervasive and abstract concept of space has generated a vast body of disciplines, time, and the related idea of "becoming" (transforming, ...

I would like to stress Vadim Mikhailovich's [Mezhuev's] position and clarify our conversation about culturology. It is constantly repeated that culturology is a science. It is my profound conviction that culturology is not a science. Culturology is a distinctive phenomenon of Russian culture and represents a certain intellectual movement. If one briefly surveys the history of its emergence, its philosophical origin becomes obvious. This intellectual movement consists of three levels, if one takes into account the "-logy" ending. First, the philosophical (...) level, from which in the 1970s culture began to be conceived as a special field of knowledge in our country. Then, humanistic knowledge: a great many representatives of the humanities in Russia-historians, art specialists, art critics, essayists-studied culture. Finally, there is the socioscientific tendency, which is just beginning to form in Russia and carries the internationally accepted name of social and cultural anthropology. All of us are synergistically attracted to these three tendencies, which comprise what is called culturology. The question of how these three tendencies of knowledge are correlated in the framework of the given intellectual movement is, in my view, extremely important. For quite some time now, there has been no reflection in Russia on the foundations of scientific and philosophical knowledge, but such reflection is necessary. To advance along the road of rational knowledge it is important to reflect in what cognitive space we find ourselves, what we are doing within its boundaries, and for what reason. From this point of view, neither philosophers nor representatives of the humanities or the social sciences will renounce their positions of observer. Moreover, I agree with Mezhuev that there is no single philosophy, humanistic conception, or theory of culture. Anyone who is engaged professionally in the study of cultural phenomena can choose his initial foundations. As Vadim Mezhuev correctly notes, the significance of philosophy for other types of knowledge lies in the fact that there are borderline areas of man's existence in the world. However, they are identified in different ways by different philosophies: positivism, phenomenology, classical Platonism, Aristotelianism, Kantianism, and so forth. Representatives of humanistic and socioscientific knowledge are free to choose any metaphysics. Philosophers will continue to attend to their business in their subject area, and scientists in theirs. But it is important periodically to determine rationally when there must be close and complementary relations between the three components of this intellectual movement and when they must exist in parallel. Then questions such as who has priority and who is the guardian of truth will not arise. If the tendencies have diverged in parallel, then the representatives of each of them are occupied within their domains with questions which are irrelevant in other fields of knowledge or for other theoretical models. At the end of the twentieth century, to pose the question of scientism or antiscientism is senseless because today we know that there are different forms of rationality and that science is not the only, and is quite a narrow, form of rationality. Myth too is rational. It is expressed in categories and has a particular inner logic. We recognize myth as a rational cultural entity, because it is represented in symbolic form as an ordered sequence of judgments, as an artifact. But it differs from scientific theory. That is why it is fruitful to reflect on what forms of rationality are relevant to what levels of knowledge. I agree with Ogurtsov, who says that these forms penetrate in one way or another into every culturally institutionalized form of knowledge. Indeed, in philosophical knowledge there are elements of everyday, mythological, and scientific knowledge, but this does not negate the distinctive nature of the philosophical form of knowledge. In science there are elements of metaphysics, mythology, and everyday knowledge, but this does not cancel the particularities of the scientific form of knowledge. The same is true of the humanistic form, which is in principle irremovable from the framework of institutionalized knowledge, at least for now. I do not agree with Ogurtsov that I give the humanistic form of knowledge a negative evaluation. Humanistic knowledge begins to be significant in a period of a cognitive paradigm shift. This, we can say, is apparent today, at a time of transition from the grand style of modernism in its postmodern mode to the building of the foundations for a new whole. The point is that the humanistic form of knowledge enables us to isolate at the outset those areas of the unknown at which we arrive because of the limitations inherent in other forms of rationality. It is closest to everyday and empirical categories of knowledge and forms of ideas; hence, particularism, image syncretism, and mobility are its distinctive features. But without this humanistic level no further step is possible in either scientific or philosophical knowledge. The breakdown into these forms of knowledge- philosophical, humanistic, and scientific-may be primitive, but we have to start our reflection on the foundations of our cognitive relationship to our surroundings somewhere. The identification of the forms of knowledge makes it possible to draw the conclusion that, unlike philosophical and humanistic knowledge, socioscientific knowledge is modeled on the natural sciences. From this it becomes obvious that the distinctive features of the object of social sciences determine also the special nature of the categorial apparatus, operationalization, selection method, and information analysis. I do not insist that the model I suggest must be accepted. Other models can be constructed. But let us start with a simpler comparison of types of knowledge and later we shall differentiate them. I started from this level because in our culture such a division is apparent and generally accepted. There are the philosophical, humanistic, and scientific forms of knowledge. They are irreducible to one another, they perform entirely different functions in the knowledge of man's relationship to the environment, and express different views about how man lives in culture. I agree that philosophy is exactly existence in culture with a singling out of the limits of this existence. But representatives of humanistic and socioscientific knowledge also deal with existence in culture. What is important for the philosopher is the direction of knowledge from within to the outside; for the representative of humanistic knowledge it is the description of how he exists among a multitude of seemingly diverse and divergent artifacts and processes; and for the scientist it is the order of the philosophically and humanistically defined reality in order to control it the better. (shrink)

A Few years ago Professor Souter made the suggestion that the curious custom of beginning each page of a MS., or each column of a page, with a large letter might be of African origin. He was struck with this feature while examining a fragment, newly acquired for the British Museum, of the celebrated Codex Palatinus of the Gospels , which is supposed to give us the African text of the New Testament. In reply to the suggestion, the present writer (...) submitted a list of eighteen MSS. in which this usage is illustrated. As most of the MSS. are manifestly Italian, the African origin of the practice was shown to be untenable. Quite recently another theory has been put forward, localizing the practice within still narrower limits. According to Professor Weinberger, the use of a capital at the beginning of each page would seem to be a peculiarity of MSS. coming from Cassiodore's library at Vivarium; and he proceeded to use this feature as a touchstone for detecting Codices Vivarienses. Impressed by the unusual interest attaching to this feature, I began to assemble all the instances I had, and to look for others. I collected a list of nearly fifty items, an inspection of which showed me at once that in registering the phenomenon under discussion I had unwittingly drawn up a list of very ancient MSS. The list does not, to be sure, hold all our oldest MSS., but most of those it holds are, as will be seen, among the oldest. In other words, the use of a large letter at the beginning of each page is clearly a custom of very great antiquity. This being so, it seemed useful to interrogate these MSS. further, in order to ascertain what other practices they have of interest to palaeographers. (shrink)