Re:TheAshLad - Sandbooks

important.Zatorre proposed that the auditory cortices in the two.
hemispheres are therefore specialized such that temporal resolution is.
better in the left and spectral resolution is better in the right. auditory
areas.. Rather than specifying different processing of specified.
psychological processesother specialization models focus on the. idea
that the two hemispheres might process information in distinctly.
different ways.. The first clear proposal of different information
processing was. made by Josephine Semmes in .On the basis of the
results of her. previous studies of World War II veterans suffering from
penetrating. brain injuriesSemmes concluded that the left hemisphere
functions as. a collection of focalized regionswhereas the right
hemisphere. functions more diffusely. To account for these
differencesSemmes. argued that a person with a small lesion in the right
hemisphere. exhibits no deficitsbecause specific functions are not
localized in. discrete regions in the right hemispherethe functions being
diffusely. represented.A large lesion of the right hemisphere produces
many more. deficits than would be predicted from the total of smaller
lesions. because an entire functional field is removed.A large lesion of
the. left hemisphere produces many deficits simply because many small
focal. regions have been destroyed that isin the left hemisphere the
total. is equal to the sum of the parts. Semmes proposed that this.
differential organization of the two hemispheres is advantageous for.
efficient control of their respective functions.The diffuse. organization
of the right hemisphere is seen as advantageous for. spatial abili
tiesbecause spatial analysis requires that different. sensations
(visualauditory tactile)be integrated into a single. percept.Language
functionsin contrastre main discrete individual. units in the left
hemisphere.. From these basic ideas about distinct functions of the two.
hemispheres has arisen the idea that the hemispheres represent two.
distinct modes of cognitive processing (see Springer and Deutch).The.
left hemisphere operates in a more logicalanalyticalcomputerlike.
fashionanalyzing stimuli input sequentially and abstracting the. relevant
details to which it attaches verbal labels.The right. hemisphere is
primarily a synthesizermore concerned with the overall. stimulus
configurationand organizes and processes information as. gestaltsor
wholes.. Preferred cognitive mode refers to the use of one thought
process in. preference to another.At one extremepeople who are.
logicalanalyticaland verbal are assumed to rely more on their left. hemi
spheres to solve problems n everyday lifewhereas people who are.
visualin tuitiveand tend to look at the big picture are assumed to. rely
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