PET studies using classical conditioning paradigms are reported. It is emphasized that PET studies show and not in learning paradigms. The importance of dissociating motor performance and learning deficits in human lesions studies is demonstrated in two exemplary studies. The different role of the cerebellum in adaptation of postural reflexes and learning of complex voluntary arm movements is discussed, [THACH].

We will prove in Zermelo-Fraenkel set theory without axiom of choice that the transitive hull R* of a relation R is not much “bigger” than R itself. As a measure for the size of a relation we introduce the notion of κ+-narrowness using surjective Hartogs numbers rather than the usul injective Hartogs values. The main theorem of this paper states that the transitive hull of a κ+-narrow relation is κ+-narrow. As an immediate corollary we obtain that, for every infinite cardinal (...) κ, the class HCκ of all κ-hereditary sets is a set with von Neumann rank ϱ(HCκ) ≤ κ+. Moreover, ϱ(HCκ) = κ+ if and only if κ is singular, otherwise ϱ(HCκ) = κ. The statements of the corollary are well known in the presence of the axiom of choice (AC). To prove them without AC - as carried through here - is, however, much harder. A special case of the corollary (κ = ω1, i.e., the class HCω1 of all hereditarily countable sets) has been treated independently by T. JECH. (shrink)

The fundamental tenet of contemporary sociobiology, namely the assumption of a single process of evolution involving the selection of genes, is critically examined. An alternative multiple-level, multiple-process model of evolution is presented which posits that the primary process that operates via selection upon the genes cannot account for certain kinds of biological phenomena, especially complex, learned, social behaviours. The primary process has evolved subsidiary evolutionary levels and processes that act to bridge the gap between genes and these complex behaviours. The (...) subsidiary levels are development, individual animal learning, and socioculture itself. It is argued that individual learning is pivotal to the derivation and biological analysis of culture. The differences between cultural and noncultural societies are stressed. It is concluded that such a multiple-level model of evolution can form the basis for reconciling opposing sides in the sociobiology debate. (shrink)

Book reviewed in this article: Ethics in Social and Behavioral Research. By Edward Diener and Rick Crandall The Ethics of Social Intervention. Gordon Bermant, Herbert C. Kelman, Donald P. Warwick.

In this book Professor Baldry describes this development from Homer to Cicero when, although the traditional divisions and prejudices still remained string, the ...

There are many passages in ancient literature which depict an imaginary existence different from the hardships of real life-an existence blessed with Nature's bounty, untroubled by strife or want. Naturally this happy state is always placed somewhere or sometime outside normal human experience, whether ‘off the map’ in some remote quarter of the world, or in Elysium after death, or in the dim future or the distant past. Such an imaginary time of bliss in the past or the future has (...) become known as the ‘golden age’. This is the name which modern scholars generally give to the ancient belief. The phrase is often echoed by modern poets. The same language has been transferred from the unknown to the known, and it has become a commonplace to describe an outstanding period of history or literature as a ‘golden age’. (shrink)

The extent of the dependence of early Greek cosmogony on mythical conceptions has long been a prolific source of controversy. Views on the subject have varied from Professor Cornford's claim that ‘there is a real continuity between the earliest rational speculation and the religious representation that lay behind it’ to Professor Burnet's extreme statement, ‘it is quite wrong to look for the origins of Ionian science in mythological ideas of any kind.’ The solution of the problem that I wish to (...) suggest is one which should satisfy those who insist on ‘the scientific character of the early Greek cosmology,’ while retaining a direct connection with pre-scientific beliefs—namely, that some, at least, of the earliest philosophers founded their doctrines of the beginning of the universe on a deliberate rationalization of earlier and contemporary mythical ideas. The appearance of notions like the ‘world-egg’ in a number of passages, too well known for quotation, shows that primitive cosmogony assumed an analogy between the generation of the world and the generation of animate creatures. I believe it can be proved that, so far from the ‘renunciation of sexual imagery’ which even Professor Cornford has recently attributed to Anaximander, he and other philosophers retained the habit of regarding cosmogony and anthropogony as parallel phenomena, only substituting for the mythical ‘world-egg’ a more scientific view of the embryo and its development. They looked at the world through the same spectacles as their predecessors, but after wiping from them the rose tint of mythological fancy. (shrink)

What credentials does evolutionary epistemology have as science? A judgement based on past performance, both in terms of advancing an empirical programme and further ng theory construction, is not much. This paper briefly outlines some of the research areas, both theoretical and empirical, that can be developed and that might secure for evolutionary epistemology a future in evolutionary biology.

Branner, H.C. Humanismens krise.--Hansen, Martin A. Eneren og massen.

This article focuses on maternal-fetal surgery (MFS) and on the concept of clinical equipoise that is a widely accepted requirement for conducting randomized controlled trials (RCT). There are at least three reasons why equipoise is unsuitable for MFS. First, the concept is based on a misconception about the nature of clinical research and the status of research subjects. Second, given that it is not clear who the research subject/s in MFS is/are, if clinical equipoise is to be used as a (...) criterion to test the ethical appropriateness of RCT, its meaning should be unambiguous. Third, because of the multidisciplinary character of MFS, it is not clear who should be in equipoise. As a result, we lack an adequate criterion for the ethical review of MFS protocols. In our account, which is based on Chervenak and McCullough's seminal work in the field of obstetric ethics, equipoise is abandoned. and RCT involving MFS can be ethically initiated when a multidisciplinary ethics review board (ERB), having an evidence-based assessment of the risks involved, is convinced that the value of answering the research hypothesis, for the sake of the health interests of future pregnant women carrying fetuses with certain congenital birth defects, justifies the actual risks research participants might suffer within a set limit of low/manageable. (shrink)

In describing the account of the εδη in the Phaedo, Burnet says, ‘they are explained in a peculiar vocabulary which is represented as that of a school. The technical terms are introduced by such formulas as “we say”’. Similarly Taylor has written of the ‘characteristic technical nomenclature’ used in the dialogues, of the ‘technicalities’ of the theory of εδη, of ‘the technical phrases of the Phaedo’ The validity of such language has been taken for granted by both these and many (...) other Platonic scholars. But the assumption which it represents—that Plato employed certain words in a significance peculiar to his use of them—carries such wide implications for the history and interpretation of his philosophy that it can hardly be accepted without further investigation. In this article I shall examine the evidence in fifth- and early fourth-century literature about these words which Plato or Socrates is alleged to have transformed into ‘technicalities’: first, εδος and δσ, which I shall assume to be more or less synonymous; second, the various terms used to describe the relation between εδη and particulars—,μετέχειν, κοινωνεν,παρεναι, νεναι,μιμησις,μοιωαις, and so on. (shrink)

This article is a survey of familiar ground—those passages of the Poetics of Aristotle which throw light on the treatment of legend by the tragic poets. Although sweeping generalizations are often made on the use of the traditional stories in drama, our evidence on the subject is slight and inconclusive. We have little knowledge of the form in which most of the legends were known to the Attic playwrights, for the few we find in the Iliad and Odyssey appear there (...) in very different versions from those they take on in the plays, and the fragmentary remains of epic and lyric poetry between Homer and the fifth century B.C. present us with a wide field for speculation, but few certain facts; while vase paintings and other works of art supplement only here and there the scanty information gained from literature.The comments of ancient writers on this aspect of tragedy are surprisingly few, and carry us little farther. The Poetics stands out as the one source from which we can draw any substantial account of the matter. Even Aristotle, of course, is not directly concerned with the history of drama, and deals with it only incidentally in isolated passages; and in considering these it must constantly be borne in mind that he is discussing tragedy as he knew it in the late fourth century, for the benefit of fourth-century readers. But even so, his statements are the main foundation on which our view of the dramatists' use of legend must be built. (shrink)

Originally published in 1913, this book charts the development, growth and legacy of the schools of the Jansenists of Port-Royal based in Paris. The Port-Royalists used many innovative teaching methods in the years before they were closed down in the mid-seventeenth century, such as their use of the vernacular and their views on the role of the teacher, and Barnard examines the place that the Port-Royalists held in the context of French education more generally to illustrate their lasting influence on (...) other schools. This book will be of value to anyone with an interest in Jansenism and the history of education. (shrink)

We distinguish three different readings of the intuitionistic notions of validity, soundness, and completeness with respect to the quantification occurring in the notion of validity, and we establish certain relations between the different readings. For each of the meta-logicalnotions considered we suggest that the "most natural" reading (which is not the same for all cases) is precisely the one which is required by the recent intuitionistic completeness theorems for IPC.