A TMS study of the ventral projections from V1 with implications for the finding of neural correlates of consciousness
Brain and CognitionPublished 30 December 2003
Morten Overgaard, Jørgen Feldbæk Nielsen, Anders Fuglsang‐Frederiksen
Citations40
SJR quartileQ1
SJR score0.74
SNIP0.79
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TL;DR
An experiment with visual stimuli that gives rise to little or no subliminal perception under normal viewing conditions is presented, coupled with transcranial magnetic stimulation, and a dissociation between correctness and conscious awareness is found.
Abstract
The study of subliminal perception in normal and brain lesioned subjects has long been of interest to scholars studying the neural mechanisms behind conscious vision. Using brief durations and a developed methodology of introspective reporting, we present an experiment with visual stimuli that gives rise to little or no subliminal perception under normal viewing conditions. Coupled with transcranial magnetic stimulation, however, we find a dissociation between correctness and conscious awareness. Furthermore, we find support for the hypothesis that the ventral projection streams from V1 are necessary for visual consciousness.
Keywords
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