Conceptualizing functional neuroplasticity

Journal/Book: J Commun Disord. 2000; 33: 655 Avenue of the Americas, New York, NY 10010, USA. Elsevier Science Inc. 345-356.

Abstract: There are at least four major forms of functional neuroplasticity that can be studied in humans: homologous area adaptation, cross-modal reassignment, map expansion, and compensatory masquerade. Homologous area adaptation is the assumption of a particular cognitive process by a homologous region in the opposite hemisphere. Cross-modal reassignment occurs when structures previously devoted to processing a particular kind of sensory input now accepts input from a new sensory method. Map expansion is the enlargement of a functional brain region on the basis of performance. Compensatory masquerade is a novel allocation of a particular cognitive process to perform a task. By focusing on these four forms of functional neuroplasticity, several fundamental questions about how functional cooperation between brain regions is achieved can be addressed.

Note: Article Grafman J, NINDS, Cognit Neurosci Sect, NIH, Bldg 10, Room 5C205, 10 Ctr Dr MSC 1440, Bethesda,MD 20892 USA

Keyword(s): neuronal plasticity; recovery of function; SYNAPTIC PLASTICITY; VISUAL-CORTEX; HUMAN BRAIN; RECOVERY; INJURY; MOTOR; HIPPOCAMPUS; MECHANISMS; CHILDREN; BEHAVIOR

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