Thoughts on Reality An insubstantial pageant The one thing we can be reasonably sure of is that what we see has nothing to do with reality. Physics tells us as much as that; that there are no things and there is no colour green. Visual information is delivered to the retina by photons fluctuating at varying frequencies. The photons are either reflected from or produced by ‘objects’, which can in their turn be understood as quantum particles held together by the charges of the electromagnetic Read more […]
Posts Tagged ‘perception’
A recent study by Aaron Schurger of the Swiss Federal Institute of Technology suggests that for conscious perception to occur brain activity has to be stabilised for some hundreds of milliseconds. In Schurger’s study, subjects saw a red-on-green line drawing in one eye, but a green-on-red drawing in the other eye.
Author: Philip J Carter, Invited article for the Journal of Neuroquantology Submission history [v1] 2013-12-26 14:51:58 [v2] 2014-01-16 12:49:26 A higher-dimensional spacetime model is proposed, accounting for nonlocal quantum phenomena while embracing Special Relativity as a limiting case. The Aspect and Megidish experiments are explained within this spacetime framework. Time is understood as spatial motion relative to higher dimensions, offering the degrees of freedom demanded by nonlocal Read more […]
Joseph B. Hopfinger & Emily B. Parks, University of Carolina In:- The Neuroscience of Attention, Ed. George R. Mangun Oxford University Press (2012) Summary and review of the above chapter Mechanisms of attention are seen as crucial for the brain to select relevant information. This chapter discusses the type of attention that we are compelled to give rather than the type of attention where we are looking out for particular types of stimuli. This is sometimes described as exogenous Read more […]
The measurement problem in consciousness research Rafael Malach, Weizmann Institute Behavioural and Brain Sciences (2007) doi: 0.1017/S0140525X0700297X Keywords: perception, reportability, neuron, consciousness, self Malach argues that studies of brain processing can differentiate conscious perception from the process of reporting the perceptions, and that conscious perception does not require some higher-order read-out system or some form of self, but can be handled by groups of neurons, Read more […]
Perception, Action and Consciousness (Chapter 1) N. Gangopadhyay, M. Madary, & F. Spicer Oxford University Press (2010) This book sets out to discuss a debate within the cognitive sciences as to the relationship of perception and action. One view is that this involves on a dual visual system driving the mainly separate functioning of perception and action. The alternative proposal is a system in which the sensory and motor systems are interactive with perception, and where consciousness Read more […]
Perception without perceiver Rafael Malach, Dept. of Neurobiology (in conversation with Zoran Josipovic) Journal of Consciousness Studies, 13, No. 9, pp. 57-66 (2006) In this Q&A transcription published in the Journal of Consciousness Studies, Rafael Malach again argues that, at least in some cases, conscious perception does not require any form of ‘observer’ in the prefrontal area, but needs only activation in the sensory cortex. This claim is based on fMRI studies performed by Malach Read more […]