BUS 17 Lecture Notes - Lecture 14: Neuroplasticity, Phantom Pain, Internal Capsule
Document Summary
Chapter 23: brain development and plasticity k&w. Effects of age: 3 crucial age divisions have been identified: before 1 year, between 1 and 5 years and older than. Lesions incurred before age 1 tend to produce disproportionately greater impairments. Lesions incurred between 1 and 5 are followed by some reorganization of brain function, including the rescue of language functions. Lesions incurred later than age 5 permit little or no sparing of function. In many cases, the only remaining deficit was a mild difficulty in writing. In the second group, it was represented bilaterally -> left frontal lobe lesion that included the anterior language zone: right-ear advantage for digits and left-ear advantage for melodies. In the third group, it was in the right hemisphere -> the lesion invaded both the anterior and posterior speech zones, which is typical for patients who developed right-hemisphere speech after early left-hemisphere lesions.
