PSYC 211 Chapter Notes - Chapter 5.3: Living Brain, White Matter, Radiography
3 Jun 2016
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The neural connections in the brain cannot be examined through histological procedures. In recent years, researchers have developed very precise methods that make specific neurons stand out from all of the others: example: lesions to the ventromedial nucleus of the hypothalamus (vmh) affects the mating behaviour of female rats. Eventually, the vmh must affect behaviour so it must send axons to parts of the brain that contain neurons that are responsible for muscular movements. To discover this system, we want to be able to identify the paths followed by axons leaving the. Vmh, i. e. we want to trace the efferent axons of this structure. Molecules of pha-l are taken up by the dendrites and transported by axoplasmic transport to the terminal buttons and within days the cells will be entirely filled. Immunocytochemical methods take advantage of the immune reaction to make the molecules of.
