Banich Chapter 4 hemi specialization Flashcards
anatomical differences between hemispheres
right frontal lobe extends farther forward and is wider, left occipital lobe extends farther back and is wider than right
planum temporale
region at the end of the Sylvian Fissure in the temporal lobe; involved in early auditory processing
planum temporale in Left hemisphere
individuals who have a larger left than right planum temporale are likely to rely more on the left hemi when processing language, LH longer in 65% of people, RH longer in 11%
presenting information separately in each visual field
divided visual field technique
different parts of the sensory system project to different hemispheres, the perceptual asymmetries are interpreted as reflecting hemispheric differences
perceptual asymmetries
a person is asked to feel two items simultaneously, one in each hand, and then to identify the items in some manner
dichaptic presentation
different information is presented simultaneously to each ear so that each hemisphere receives two competing pieces of information
dichotic presentation
- brains of split-brain patients may not be typical
- severing the corpus callosum could damage other regions
- different patients may exhibit different behavior (careful when generalizing)
caveats of interpretation from split-brain research