I'm not sure if this data has been published or not, but Gazzaniga did a
single subject demonstration for Alan Alda, apparently his very first
use of this particular protocol, as part of the "Severed Corpus
Callosum" segment of Scientific American Frontiers (which are available
as streaming videos online). One split-brain individual (I think his
name is Paul) does a number of different tasks (simultaneously drawing 2
different shapes with his 2 hands, responding to cues presented in
either the left or right visual fields). In the final demo pictures of
paintings (perhaps by Versalius?) of faces made up of fruits or
vegetables or books are flashed on the right or the left and Paul
indicates whether he sees the whole (face) or the parts (fruit, veggies,
or books). The right hemisphere always sees the face, the left the
component parts.Cool huh? Maybe it didn't replicate in other patients if
you couldn't find it in print.
Linda Walsh
University of Northern Iowa
[EMAIL PROTECTED]
Paul Okami wrote:
Hi
I'm trying to track down the source of a Gazzaniga experiment I was
told about wherein a split-brain patient was shown an image of fruit,
slabs of meat, and other objects arranged to look like a face. Shown
the image in the right visual field and asked what he saw, he answered
fruit, meat, etc., no face mentioned Shown the image in the right
visual field, the answer was "a face", no meat, fruit mentioned.
I cannot find this anywhere, and I'm now wondering if it is real.
With gratitude to any who can enlighten me,
Paul Okami
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