BIO SCI 35 Lecture Notes - Lecture 15: Postcentral Gyrus, Cognitive Training, Neuroplasticity
24 Feb 2018
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BIO SCI 35 Full Course Notes
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It is this reason that, once development has ended, the fonts of growth and regeneration of axons and dendrites dried up irrevocably. In the adult centers the nerve paths are something fixed, ended, immutable. It is for the science of the future to change, if possible, this harsh decree. This ^^^ is not true, the adult brain is in fact capable of rewiring itself. Monkey primary somatosensory cortex contains a map of the fingers. These results indicate that somatosensory inputs to the adult cortex are in a constant state of territorial competition: inputs from neighboring inputs gain territory when they have an advantage. These rewiring events were in response to injury. Cortical somatosensory representations are expanded presumably because of use. Nursing rats: a natural case of s1 cortex plasticity. The tactile representation of the nursing rat"s chest temporarily expands and receptive field sizes shrink. Monkey had to stay in contact with the disk long enough to earn a food pellet.
