Abstract
Functional and anatomical laterality of the human brain has been studied since the early neurologist Broca reported that lesions of the left cerebral hemisphere resulted in language disorders. His findings suggested a specialized role for this hemisphere in controlling speech (Broca, 1861). Since these early reports, numerous differences between the left and right hemispheres of the human brain have been reported. Many hemispheric asymmetries have been shown to involve dominance where one hemisphere plays a greater role in control of a specific behavior (Corballis, 1991; Hellige, 1993). It has been shown, for example, that while the human left hemisphere is specialized for the processing of language, the right hemisphere has a dominant role for the processing of musical, visuospatial and emotional information (Springer and Deutsch, 1981). Lateralization of brain function often indicates that the two hemispheres are differentially proficient in controlling various behavioral activities. Differential degrees of brain lateralization appear to occur within the population. Variation in human functional brain asymmetry is associated with differences in handedness (Annett, 1985; Bryden, 1982), cognitive ability (O’Boyle and Hellige, 1989), emotional function (Davidson, 1992) and psychopathology (Flor Henry, 1986).KeywordsNucleus AccumbensMedial Prefrontal CortexInescapable ShockRotational BehaviorEthanol DrinkingThese keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
Published Version
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call