Action-blindsight in healthy subjects after transcranial magnetic stimulation
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Action-blindsight in healthy subjects after transcranial magnetic stimulation. / Christensen, Mark Schram; Kristiansen, Lasse; Rowe, James B.; Nielsen, Jens Bo.
I: Proceedings of the National Academy of Science of the United States of America, Bind 105, Nr. 4, 2008, s. 1353-1357.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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TY - JOUR
T1 - Action-blindsight in healthy subjects after transcranial magnetic stimulation
AU - Christensen, Mark Schram
AU - Kristiansen, Lasse
AU - Rowe, James B.
AU - Nielsen, Jens Bo
N1 - CURIS 2008 5200 033
PY - 2008
Y1 - 2008
N2 - 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.
AB - 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.
U2 - 10.1073/pnas.0705858105
DO - 10.1073/pnas.0705858105
M3 - Journal article
C2 - 18212129
VL - 105
SP - 1353
EP - 1357
JO - Proceedings of the National Academy of Sciences of the United States of America
JF - Proceedings of the National Academy of Sciences of the United States of America
SN - 0027-8424
IS - 4
ER -
ID: 3592449