Vertebrates respond to light with more than just their eyes. In this article, we speculate on the intriguing possibility that a link remains between non‐visual opsins and neurohormonal systems that control neuronal circuit formation and activity in mammals. Historically, the retina and pineal gland were considered the only significant light‐sensing tissues in vertebrates. However over the last century, evidence has accumulated arguing that extra‐ocular tissues in vertebrates influence behavior through non‐image‐forming photoreception. One such class of extra‐ocular light detectors are the (...) long mysterious deep brain photoreceptors. Here, we review recent findings on the cellular identity and the function of deep brain photoreceptors controlling behavior and physiology in zebrafish, and discuss their implications. (shrink)

The ethical theories employed in health care today assume, in the main, a modern Western philosophical framework. Yet the diversity of cultural and religious assumptions regarding human nature, health and illness, life and death, and the status of the individual suggest that a cross-cultural study of health care ethics is needed. A Cross-Cultural Dialogue on Health Care Ethics provides this study. It shows that ethical questions can be resolved by examining the ethical principles present in each culture, critically assessing each (...) value, and identifying common values found within all traditions, It encourages the development of global awareness and sensitivity to and respect for the diversity of peoples and their values and will advance understanding as well as help to foster a greater balance and a fuller truth in consideration of the human condition and what makes for health and wholeness. (shrink)

For many Christians, personal experiences of God provide an important ground or justification for accepting the truth of the gospel. But we are sometimes mistaken about our experiences, and followers of other religions also provide impressive testimonies to support their religious beliefs. This book explores from a philosophical and theological perspective the viability of divine encounters as support for belief in God, arguing that some religious experiences can be accepted as genuine experiences of God and can provide evidence for Christian (...) beliefs. (shrink)

INTRODUCTION Philosophy is a discipline of fundamental diversities and extremely divergent modes of thought some of which occupy center stage in Western ...

ABSTRACT In this paper we attempt to sharpen and to provide an answer to the question of when human beings first become conscious. Since it is relatively uncontentious that a capacity for raw sensation precedes and underpins all more sophisticated mental capacities, our question is tantamount to asking when human beings first have experiences with sensational content. Two interconnected features of our argument are crucial. First, we argue that experiences with sensational content are supervenient on facts about electrical activity in (...) the cerebral cortex which can be ascertained through EEG readings. Second, we isolate from other notions of a‘functioning brain’that which is required to underpin the view that a cortex is functioning in a way which could give rise to rudimentary conscious experiences. We investigate the development in the human fetus of the anatomical and chemical pathways which underpin (immature) cortical activity and the growth and maturation of the electrical circuitry specifically associated with sensational content in adult experience. We conclude (tentatively) that a fetus becomes conscious at about 30 to 35 weeks after conception; an answer based on a careful analysis of EEG readings at various stages of cortical development. Finally, we survey the possible ethical ramifications of our answer. (shrink)

The American University Publications In From its inception Philosophy has continued the direction stated in the sub-title of the initial volume that of probing new directions in philosophy. As the series has developed these probings of new directions have taken the two fold direction of exploring the relationships between the disparate traditions of twentieth century philosophy and with developing new insights into the foundations of some enduring philosophic problems. This present volume continues both of these directions. The interaction between twentieth-century (...) Anglo-Saxon and Continental philosophy which was an implicit theme of our first and third volumes and the explicit subject of our second volume is here continued in a series of studies on major figures and topics in each tradition. In the context of these interpretative studies, Professor Durfee returns again and again to the question of the relationships between the will and the reason, and explores the conflicting goals of creativity and objectivity in formulating a philosophic position. In so doing he raises the issue as his title suggests - of the foundations of philosophy itself. He seriously challenges the belief common to both pheomenology and analytic philosophy that philosophizing can be a presuppositionless activity, objectively persued independent of the personal (and, perhaps, arbitrary) commitments of the philosopher. This issue, critical as it is to all forms of philosophy, is surely a worthy one for a series such as ours. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:408 HISTORY OF PHILOSOPHY The Fellowship of Being. By John B. O'Malley. (The Hague: Martinus Niihoff, 1966. Pp. xii + 140. $5.60) This book is a study of the concept of person in the philosophy of Gabriel Marcel. It is the revision of a doctoral thesis, completed at the University of London, under the direction of A. J. Ayer. This fact, in addition to the intrinsic interest of the (...) subject, gives the volume special interest, for it is one of an increasing number of essays establishing dialogue between British analytic interests and continental phenomenology. John B. O'Malley is well aware of current analytic concerns and frequently notes the relevance of Marcel's analysis to these issues. It is even argued that Marcel anticipated numerous concerns which became central in analytic philosophy includingproblems of language. O'Malley proposes that the person is the central and guiding concept in Marcel's philosophy and that his analysis of this phenomenon allows him to escape Idealism and ghost theories, and to reconcile the moral and the metaphysical viewpoints. It is to the person that bodily or mental predicates are applied. Consequently this concept is fundamental to the analysis of body-mind problems. It is this reality which offers the nonlinguisticreferent to which such predication may apply. An adequate analysis of person must not abstract from its subject matter but rather must include the person in "an act of reflective withdrawal." This is central in Marcers methodology, and thus the epistemology of the person is neither "acquaintance with" nor "knowledge about." The neglect of such involvement results in either extreme objectivism or extreme subjectivism, either of which misses the person. Objectivism replaces the personal with successive states and qualities. Subjectivism results in either solipsism or in a division between an absolute and a particular ego, and thus both lose the concrete and incarnate person. The embodied person is the center of my relationships and thus even ontological analysis must be directed toward it. The analysis cannot be merely problematic but needs to be meta-problematic. The person offers such meta-problematic analysis a meeting point of Being, Truth, and Value, thus overcoming the dichotomy between the moral and the metaphysical and between the normative and the descriptive. Unfortunately the essay could have used a further proof reading for it is marred by numerous printing errors. Although it is somewhat ponderous in style, it is a very carefully argued analysis of what is central to Marcel. To have such a discussion sympathetic to Marcel's perspective and yet written by one quite conscious of British philosophical concerns affords significant insight for the reader into a new stage of contemporary philosophy which is undoubtedly to center upon such conversation across the English channel. HAROLDA. D ~ American University Menschliche Existenz und moderne Welt. Ein internationales Symposion zum Selbstverst~indnis des heutigen Menschen. Hrsg. Richard Schwarz. (Berlin, 1967. Two vols., S. 810 and 885) In der "Einfiihrung" umreisst der tterauageber den Titel des Werkes. Es soil nach dem Selbstverst~indnis des Menschen gefragt werden, das heiflt, worin sieht der heutige Mensch die besondere Eigenheit seines Menschseins, sein "Epochalbewul~tsoin" (Litt). Gibt es gewisse Grundbefindliehkeiten,die MienMensehen gemeinsamsind? Kann noch yon einer gemeinsamen Wertwelt gesproehen werden? Sind dieses nicht infolge einer inneren Bedrohung nur fiberholte Gedanken? Das Werk soll die Antwort geben. Es ist nicht mSglich, alle in dem Buch aufgenommene Aufs~tze zu behandeln, mSgen sic auch gewinnreiche Beitr~ige sein. Datum muff eine gewisse Auswabl getroffen werden. Zu Beginn des Werkes spricht der leider verstorbene Eduard Spranger fiber den "Humanit ~tsgedanken", den er unter dem dreifachen Aspekt der Humanit~t als Bildung, als ethischpolitischen Begriff und als religiSs-ethischen Begriff wiedergibt. Bildung ist nicht blofl Tradi- BOOK REVIEWS 409 tion, sondern immer neue lebendige Durehdringung, Gelstesformung, nicht nur Grammatik. Humanitat fordert ethisch-politische Freiheit als Voranssetzung der Personentfaltung, ist darum mehr als blofie Nfitzlichkeit und verlangt Anerkennung des Lebensreehts anderer V61ker. Nach Spranger gibt es einen religiSs-ehristlichen Humanismus im Gegensatz zur "Theologie der Krisis". Er steht in Verbindung mit dem Weltsein, verleiht ihm den letzten transzendenten Bezug und fordert "echte Toleranz". Alfred yon Martin-M~nehen erSrtert dann in "Humanitgt als Problem tier Gegenwart" angesichts... (shrink)