It is traditionally believed that cerebral activation (the presence of low voltage fast electrical activity in the neocortex and rhythmical slow activity in the hippocampus) is correlated with arousal, while deactivation (the presence of large amplitude irregular slow waves or spindles in both the neocortex and the hippocampus) is correlated with sleep or coma. However, since there are many exceptions, these generalizations have only limited validity. Activated patterns occur in normal sleep (active or paradoxical sleep) and during states of anesthesia (...) and coma. Deactivated patterns occur, at times, during normal waking, or during behavior in awake animals treated with atropinic drugs. Also, the fact that patterns characteristic of sleep, arousal, and waking behavior continue in decorticate animals indicates that reticulo-cortical mechanisms are not essential for these aspects of behavior. (shrink)

Prologue: Quest for the Personal In the lectures which formed the basis of this book I began, as Chapter i indicates, with a brief review of how the current ...

Plato's Psychology originally published in 1970 and reprinted in 1972, is still the definitive modern discussion of the nature and development of Plato's ...

In this paper I want to suggest that, while the argued philosophical distinction between logic, epistemolgoy and ontology is one of the many achievements of Aristotle, his predecessor Parmenides was in fact already operating with a theory of knowledge and an elementary propositional logic that are of abiding philosophical interest. As part of the thesis I shall be obliged to reject a number of interpretations of particular passages in his poem, including one or two currently fashionable ones. Since so much (...) turns on points of translation, I note for purposes of comparison what seem to be significant alternatives to my own in any particular instance. The line numbers are those of the DK text. (shrink)

Environmental ethicists have frequently criticized ancient Greek philosophy as anti-environmental for a view of philosophy that is counterproductive to environmental ethics and a view of the world that puts nature at the disposal of people. This provocative collection of original essays reexamines the views of nature and ecology found in the thought of Plato, Aristotle, the Stoics, and Plotinus. Recognizing that these thinkers were not confronted with the environmental degradation that threatens contemporary philosophers, the contributors to this book find that (...) the Greeks nevertheless provide an excellent foundation for a sound theory of environmentalism. (shrink)

If in the context of early and classical Greek thought, the term “theology” is taken to mean “of God/gods/the gods and his/their putative relationship, causal and directive, to the world and its operations, and to ourselves within that world,” or something of that order, the first ascription of such a notion to a Presocratic philosopher is to be found in Aristotle's comment that “Thales thought that all things are full of gods”. The Presocratic period ends with no neat causal sequence. (...) If one train of thinking was moving in the direction of a divinely guided, teleologically explicable universe, another was moving in exactly the opposite direction. For the atomists Democritus and Leucippus, the ever-changing universe is an infinity of space in which, across eternity, chance agglomerations of ever-moving atoms produce and will forever go on producing those contents of the universe that we call realities, from gazelles to galaxies. (shrink)

Chapter 1 The Author: Life and Works 1 . Historical and Cultural Background In the twelfth and thirteenth centuries, the Jews of southern France (the Midi, ...

This comment identifies and elaborates three assumptions that underlie the proposal made by the Rogers, Schröder, and von Scheve article. First, our theories of emotion need to take into account, and be consistent with, supported theories of social outcomes and processes. Second, a thorough understanding of affective processes requires investigation at multiple levels of analysis, which in turn requires multilevel theories—or single-level theories that interact well with theories at other levels. Third, our broad understanding of emotion will be served best (...) when we cultivate a field of intersecting and interacting theories of emotion. (shrink)

In a recent article I attempted to show in some detail how Parmenides’ poem treats of ascertainment and the Real. I return to the argument here, and attempt to draw out some philosophical implications. Translations are in all cases my own; for a defense of them the reader is referred to my earlier work.

This ran against all that Robinson believed most deeply about belief in God- influenced as he was by the new wave of German the.

Explores various aspects of Plato’s cosmological writings.

Kanger [4] gives a set of twelve axioms for the classical propositional Calculus which, together with modus ponens and substitution, have the following nice properties: (0.1) Each axiom contains $\supset$ , and no axiom contains more than two different connectives. (0.2) Deletions of certain of the axioms yield the intuitionistic, minimal, and classical refutability1 subsystems of propositional calculus. (0.3) Each of these four systems of axioms has the separation property: that if a theorem is provable in such a system, then (...) it is provable using only the axioms of that system for $\supset$ , and for the other connectives, if any, actually occurring in that theorem. (0.4) All twelve axioms are independent. It is easily seen that two of Kanger's axioms can be shortened, and that two others can be replaced by a single axiom which is the same length as one of the two which it replaces, without disturbing properties (0.1)-(0.3). These alterations have advantages of simplicity and elegance, but bring property (0.4) into question, in that similarities among some of the axioms in the altered system make demonstrations of independence considerably more difficult. It is the purpose of this paper to show that independence is nonetheless provable for the simplified system, and in another system which also satisfies (0.1)-(0.3), in which f (falsehood) is taken to be primitive instead of ∼ (negation). Nonnormal truth-tables2 are used to obtain the independence of one of the axioms. (shrink)