Action-blindsight in healthy subjects after transcranial magnetic stimulation

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningfagfællebedømt

Mark Schram Christensen, Lasse Kristiansen, James B. Rowe, Jens Bo Nielsen

Clinical cases of blindsight have shown that visually guided movements can be accomplished without conscious visual perception. Here, we show that blindsight can be induced in healthy subjects by using transcranial magnetic stimulation over the visual cortex. Transcranial magnetic stimulation blocked the conscious perception of a visual stimulus, but subjects still corrected an ongoing reaching movement in response to the stimulus. The data show that correction of reaching movements does not require conscious perception of a visual target stimulus, even in healthy people. Our results support previous results suggesting that an efference copy is involved in movement correction, and this mechanism seems to be consistent even for movement correction without perception.
OriginalsprogEngelsk
TidsskriftProceedings of the National Academy of Science of the United States of America
Vol/bind105
Tidsskriftsnummer4
Sider (fra-til)1353-1357
Antal sider5
ISSN0027-8424
DOI
StatusUdgivet - 2008

Bibliografisk note

CURIS 2008 5200 033

ID: 3592449