A cinematographic hypothesis of cortical dynamics in perception

International Journal of Psychophysiology : Official Journal of the International Organization of Psychophysiology
Walter J Freeman

Abstract

The aim of this study was to measure and classify spatial patterns in sensory cortical EEGs relating to conditioned stimuli (CSs) in order to test the hypothesis, based on clinical reports, that cortical dynamics is not continuous but operates in steps that resemble frames in a cinema. Recent advances in the application of the Hilbert Transform to intracranial recordings of the EEG in animals have revealed markers for repetitive phase transitions in neocortex at frame rates in the theta band. The frames were sought in multichannel EEGs that had been recorded from 8x8 high-density arrays that were fixed on primary sensory cortices of rabbits trained to discriminate visual, auditory or somatic conditioned stimuli with reinforcement (CS+) or without (CS-). Localization of frames in EEGs was by use of a new index, H(e)(t), called "pragmatic information". Each spatial pattern was represented by a feature vector from the 64 analytic amplitudes at a maximal value of H(e)(t) from the Hilbert transform and expressed as a 64x1 feature vector specifying a point in 64-space. Classification with respect to CS+/- was by calculation of Euclidean distances of points from centers of gravity of clusters after preprocessing by nonlinear mapping. ...Continue Reading

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Citations

Mar 28, 2009·Cognitive Neurodynamics·Francois B VialatteAndrzej Cichocki
Jul 3, 2010·Journal of Neuroscience Methods·Yusely RuizGuang Li
Apr 21, 2009·Human Brain Mapping·Julien Lefèvre, Sylvain Baillet
Jun 2, 2006·Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology·Walter J FreemanSampsa Vanhatalo
Apr 29, 2006·International Journal of Psychophysiology : Official Journal of the International Organization of Psychophysiology·Erol Başar, Sirel Karakaş
Nov 13, 2015·International Journal of Neural Systems·N HoumaniF B Vialatte
Feb 15, 2012·Consciousness and Cognition·Raymond A Noack
May 6, 2009·International Journal of Psychophysiology : Official Journal of the International Organization of Psychophysiology·Alexey M IvanitskyOlga V Sysoeva
May 26, 2009·International Journal of Psychophysiology : Official Journal of the International Organization of Psychophysiology·Constantine A Mangina
Aug 28, 2012·Neuroscience and Biobehavioral Reviews·Timothy P Meehan, Steven L Bressler
Oct 4, 2016·Frontiers in Neuroscience·Steven L Bressler, J A Scott Kelso
Jun 20, 2019·Journal of Neurophysiology·Detlef H HeckLeslie M Kay
Dec 24, 2019·Human Brain Mapping·Lili ZhouLi Hu
Mar 20, 2018·Nature Communications·Sven VannesteDirk De Ridder
Mar 30, 2017·Frontiers in Systems Neuroscience·Robert Kozma, Walter J Freeman
Sep 20, 2018·Neuroscience Journal·Gahangir HossainRobert Kozma
Jan 22, 2019·Frontiers in Systems Neuroscience·Alex SheremetAndrew P Maurer
Jul 26, 2018·Neuroscience of Consciousness·Tomer FeketeCees van Leeuwen
May 20, 2020·International Journal of Psychophysiology : Official Journal of the International Organization of Psychophysiology·Sirel Karakaş
Jun 15, 2021·The European Journal of Neuroscience·Maëlan Q MenétreyMichael H Herzog
Jul 21, 2021·Journal of Vision·Christoph Huber-HuberDavid Melcher

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