Accession Number : ADA189282


Title :   Individual Differences in Hemispheric Specialization


Descriptive Note : Final rept. Feb 1985-Feb 1987


Corporate Author : BIRMINGHAM UNIV (UNITED KINGDOM) DEPT OF ANATOMY


Personal Author(s) : Glass, A


Full Text : http://www.dtic.mil/dtic/tr/fulltext/u2/a189282.pdf


Report Date : Nov 1987


Pagination or Media Count : 394


Abstract : It has long been recognized that the left cerebral hemisphere is specialized for language and possibly other symbolic process, and that the right hemisphere has a visuospatial specialization. Aphasia affecting the cerebral hemisphere on the same side as the preferred hand has also long been understood. Individual variation in degree and direction of specialization due to gender and handedness has, until recently, been regarded as a barrier to the investigation of lateralization, and at the same time individual differences have been used to explain differences in lateralization measurements on a post-hoc basis. This volume provides cross comparisons of several methods for assessing hemispheric specialization, methods such as perceptual/behavioral, clinical/neurological, electrophysiological, and real-time techniques for assessment of cerebral orientation. Errors of assessment should thereby be differentiable from individual variations in hemispheric specialization. It is the consensus of the authors of theses research notes that hemispheric specialization may reemerge, not as a monolithic, absolute structural concept, but as a dynamic process, modulating the utilization by differential strategy, activation, and arousal, of a relative structural specialization of the hemisphere in individual subjects. The importance of these concepts for psychopathology is also considered.


Descriptors :   *CEREBRUM , *HEMISPHERES , ABNORMAL PSYCHOLOGY , ACTIVATION , ANATOMY , APHASIA , ASYMMETRY , BEHAVIOR , CARDIOVASCULAR SYSTEM , DYNAMICS , ELECTROPHYSIOLOGY , ERRORS , NERVE TRANSMISSION , PATTERN RECOGNITION , PERCEPTION , REAL TIME , SPECIALIZATION , SPEECH , SPEECH RECOGNITION , STRATEGY , SYMBOLS , THESES


Subject Categories : Anatomy and Physiology


Distribution Statement : APPROVED FOR PUBLIC RELEASE