We were thrilled to find this sort of effect and are very interested in investigating it further. The evening I first reviewed the split-brain patient data I called people at home in my excitement to share the findings.
When this secondary task was of a linguistic nature, the differences in response times for stimuli in the two visual fields disappeared. The differences remained, however, when the secondary task was of a non-linguistic nature.
The findings of our research are pretty tripped out-the idea that one's perception, or at least one's perception, or at least one's perceptual discrimination, of the world may differ by visual field. Our paper is the first to propose that language may shape just half of our visual world.
Critically, the color of this odd-man-out had either the same name as the other squares-for example, a shade of green-while the others were all a different shade of green, or a different name, such as a shade of blue, while the others were all a shade of green.
Participants responded more quickly when the color of the odd-man-out had a different name than the color of the other squares. But, most importantly, this only occurred if the odd-man-out was in the right half of the visual field.
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