As with hearing, most of the major connections from the sense of touch goes to the opposite hemisphere. Blindfolded participants should make less naming errors for items presented in their right hand. Dichhaptic Technique

Dichhaptic Technique Demonstration

Brain Xyzyy’s Language centres LR Right Hand Left Hand

Split brain patients The corpus callosum is cut to treat intractable epilepsy. This also stops information travelling between the two hemispheres. The effect of this was studied by Roger Sperry.

Brain JW’s Language centres LR Right Hand Left Hand Because the right hemisphere handles visuospatial information he can draw what he cannot name. Visuospatial centres

Split consciousness ? JW does not feel as if he is two people in one brain. Yet only part of him is conscious of the world around him at any one time.