On 14 Apr 2011 at 16:24, Marc Carter wrote: > Hello, TIPSters -- > > So, today in cognitive we were talking about linguistic capacity and > split brain and all that sort of stuff, and one student wondered > whether or not she'd be able to blacken half of her contact lenses, > say, on the right sides (she's astigmatic and has weighted lenses) and > wander around with only her right hemisphere making (initial, > pre-callosal) contact with the world. >
Wouldn't work. The fovea has special representation with both hemispheres, so as soon as she focused directly on a target, both hemispheres would be informed. She'd have to somehow suppress the urge to look directly at something and view the world only with peripheral vision, which doesn't seem likely. That's why test stimuli are presented tachistoscopically to the right or left visual field in studies of hemispheric differences. The fraction of a second that the stimuli are available is too brief for the eyes to respond by fixating directly on the object. Stephen -------------------------------------------- Stephen L. Black, Ph.D. Professor of Psychology, Emeritus Bishop's University Sherbrooke, Quebec, Canada e-mail: sblack at ubishops.ca --------------------------------------------- --- You are currently subscribed to tips as: [email protected]. To unsubscribe click here: http://fsulist.frostburg.edu/u?id=13090.68da6e6e5325aa33287ff385b70df5d5&n=T&l=tips&o=10025 or send a blank email to leave-10025-13090.68da6e6e5325aa33287ff385b70df...@fsulist.frostburg.edu
