COGS 100 Lecture Notes - Lecture 5: Cognitive Neuroscience, Camillo Golgi, Resting Potential
15 Oct 2014
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Document Summary
Cogs100 - introduction to cognitive science - lecture 5: the neuroscience perspective. Cognitive neuroscience studies the neural structure and processes underlying human cognitive function and emotion. Study effects of accidental or deliberate nervous-system damage to the brain. The case study method looks at effects or brain damage due to stroke, head trauma or other injury in humans. Lesion studies electrode is used to selectively destroy a specific brain area of an animal. Method of staining nervous tissue called black reaction which resulted in a stark black deposit on the soma (body) as well as on the axon (long tail) and all dendrites providing exceedingly clear pictures of neurons. Neurons appear in many different forms in different places in the brain. Each neuron is connected to about 10^4 other neurons. Each neuron only connects directly to a small portion of other neurons. Resting potential refers to the difference between the voltage inside and outside the neuron at a stable non-firing stage.
