Line bisection-based hemisphericity estimates of university students and professionals: Evidence of sorting during higher education and career selection

Autor: Bruce E. Morton
Rok vydání: 2003
Předmět:
Zdroj: Brain and Cognition. 52:319-325
ISSN: 0278-2626
DOI: 10.1016/s0278-2626(03)00169-6
Popis: Recently, hemisphericity has been assessed by six intercorrelated methods. Here, one of these, the “Best Hand Test,” a two-hand line bisection-based biophysical method relatively independent of language, culture, or education, was applied to the measurement of hemisphericity distributions within large groups. Entering university students ( n =402) enrolled in three lower division courses were chosen as a reference population. Each of these classes contained about 56% left brain-oriented individuals. In contrast, mean student left-brain distributions in four specialized, upper level courses ( n =180), ranged from 35 to 68%, suggestive of hemisphericity sorting. Even more pronounced hemisphericity distribution differences were found within university representatives of 15 professions ( n =421) and within professional subspecialists ( n =45). For example, of biochemists ( n =18), 83% were left brain-oriented, while among astronomers ( n =21), only 29% were. These results are of intrinsic interest, and demonstrate the capability of the Best Hand Test to estimate hemisphericity in large groups.
Databáze: OpenAIRE