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The Visual (Un)Conscious and Its (Dis)ContentsA microtemporal approach$
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Bruno G. Breitmeyer

Print publication date: 2014

Print ISBN-13: 9780198712237

Published to Oxford Scholarship Online: August 2014

DOI: 10.1093/acprof:oso/9780198712237.001.0001

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Microtemporal analyses of object perception

Microtemporal analyses of object perception

Chapter:
(p.37) Chapter 3 Microtemporal analyses of object perception
Source:
The Visual (Un)Conscious and Its (Dis)Contents
Author(s):

Bruno G. Breitmeyer

Publisher:
Oxford University Press
DOI:10.1093/acprof:oso/9780198712237.003.0003

The study of visual consciousness relies on methodological approaches such as psychophysical, brain-imaging/recording, objective behavioral, and subjective descriptive ones. However, because the conscious registration of a stimulus requires its prior processing for many tens or several hundreds of milliseconds at unconscious levels, an overarching methodological approach is the microtemporal approach. After a stimulus attains registration in consciousness, it also can be processed at later and higher conscious levels. The microgenetic approach has been useful especially in studying visual masking. The microgenetic approach is premised on an analogy between microgenetic “evolution” of the processing of a stimulus and the macroevolutions of consciousness on phylogenetic and ontogenetic time scales. The microtemproal approach strives to delineate the processing at these various unconscious and conscious stages and levels, using, for example, simple and choice reaction times, visual masking techniques, transcranial magnetic stimulation, electroencephalographic recordings, magnetoencephalographic recordings, as well as eclectrophysiological recordings of individual neurons.

Keywords:   microtemporal approach, microgenetic approach, reaction times, visual/transcranial masking, masked priming, transcranial magnetic stimulation, electroencephalographic recordings, magnetoencephalographic recordings

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