Following brain injury or disease there are widespread biochemical, anatomical and physiological changes that result in what might be considered a new, very different brain. This adapted brain is forced to reacquire behaviors lost as a result of the injury or disease and relies on neural plasticity within the residual neural circuits. The same…

This article discusses findings concerning the plasticity of auditory cortical processing mechanisms in adults, including the effects of restricted cochlear damage or behavioral training with acoustic stimuli on the frequency selectivity of auditory cortical neurons and evidence for analogous injury- and use-related plasticity in the adult human…

This article introduces a framework for conceptualizing four forms of cognitive neuroplasticity. The concepts include: (1) homologous area adaptivity; (2) cross-modal reassignment; (3) map expansion; and (4) compensatory masquerade. The limitations of each form of plasticity are presented. (Contains references.) (Author/CR)