Perception
2009
John Smythies
8 citations
This paper presents the results of some recent experiments in neuroscience and perceptual science that reveal the role of virtual reality in normal visual perception, and the use of television technology by the visual brain. This involves particularly the cholinergic system in the forebrain. This research throws new light on the nature of perception and the relation of phenomenal consciousness...
Inquiry
September 1, 1994
John Smythies
18 citations
This paper examines the impact that recent advances in clinical neurology, introspectionist psychology and neuroscience have upon the philosophical psycho‐neural Identity Theory. Topics covered include (i) the nature and properties of phenomenal consciousness based on a study of the ‘basic’ visual field, i.e. that obtained in the complete dark, the Ganzfeld, and during recovery from occipital...
Psychological Medicine
August 1, 1992
John Smythies
9 citations
Neurophilosophy is Patricia Churchland's (1986) hypothesis that the mind-brain 'problem' and related 'problems' such as those surrounding perception and cognition will be solved by advances in cognitive neuroscience.This entails that the attempts by philosophers to solve these problems by their methods of purely logical, conceptual and linguistic analysis are doomed to failure as they represent...
Nature
May 16, 1970
John Smythies, J. Beaton, F. Benington et al.
IN attempts to work out possible mechanisms of action of the hallucinogenic drugs, it would be helpful to know which chemical groups modify their activity. In the methoxylated amphetamines, some methoxy groups may act as electrostatic binding sites and some may effect the shape and energy distribution of the π cloud. It may also be important to know whether the amino group is necessary for...
Journal of Mental Science
April 1, 1960
John Smythies, Carmit Levy
23 citations
There are, in the main, two principal methods of biological research into the problem of causation of schizophrenia. In the first, or direct method, studies are made of the body fluids and of the metabolism of schizophrenics in the hope of turning up some toxic factor or error of metabolism. Such studies are currently under way in a number of centres and, although many claims as to positive...
Journal of Mental Science
April 1, 1955
Dwight I. Peretz, John Smythies, William C. Gibson
55 citations
3,4,5-Trimethoxyphenyl-β-aminopropane (TMA) is structurally related to both amphetamine and mescaline, as is shown in Figure 1. Because of this structural relationship of TMA and amphetamine, methedrine, and mescaline, one could anticipate a clinical response to the compound which would represent certain phenomena characteristic of each of these drugs. This presented an intriguing problem as to...
Journal of Mental Science
1954
A. Hoffer, H Osmond, John Smythies
300 citations
About one year ago, with the encouragement of the Editor-in-Chief, a short paper appeared in this Journal entitled “Schizophrenia; A New Approach” (18). In this paper it was noted that mescaline and adrenaline have a similar biochemical structure. It was suggested that one of the aetiological agents in schizophrenia might be a substance or substances lying between these two; with the...