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)

C. H. Whiteley; I—The Presidential Address*: Confirmation, Proceedings of the Aristotelian Society, Volume 74, Issue 1, 1 June 1974, Pages 1–14, https://doi.org.

An elementary semistochastic model for cell cycle analysis is presented. Various independently generated experimental data sets are compared with the theory in which for the first time, a consistent consideration of non-proliferating cells has also been taken into account.

Experiments are described, using electroencephalography (EEG) and simple tests of performance, which support the hypothesis that collapse of a quantum field is of importance to the functioning of the brain. The theoretical basis of our experiments is derived from Penrose (1989) who suggested that conscious decision-making is a manifestation of the outcome of quantum computation in the brain involving collapse of some relevant wave function. He also proposed that collapse of any wave function depends on a gravitational criterion. As different (...) brain areas are known to subserve different functions, we argue that `Penrose collapse' must occur in a particular brain area when performing a task that uses it. Further, taking an EEG from the area should amplify the gravitational prerequisite for collapse, so affecting task performance. There are no non-quantum theories which could lead one to expect that taking an EEG could directly affect task performance by subjects. The results of both pilot and main experiments indicated that task performance was indeed influenced by taking an EEG from relevant brain areas. Control experiments suggested that the influence was quantum mechanical in origin, and was not due to any experimental artefact. The results are statistically significant and merit attempts at replication in an independent laboratory, preferably with more sophisticated equipment than was available to us. (shrink)

Following a theme which increasingly interests people concerned with problems of sentience, this paper describes how consciousness might encode information. The idea that awareness is inseparable from Bose-Einstein condensation in the brain is identified as the most promising of the ‘quantum consciousness’ notions. It can be inferred from this idea that brain Bose condensates will have a geometrical structure, analagous to that of tapestries, which can encode information and to which knot theory can be applied.These notions are able to explain (...) otherwise puzzling features of conscious information handling and a neuroanatomically testable prediction is derived from them. Finally it's pointed out that they imply that any ‘strong’ panpsychist position is unnecessary. (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)