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Lecture

What to know about the brain.docx

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Department
Psychology
Course
PSYC 100
Professor
Jaime Palmer
Semester
Fall

Description
What to know about the brain - Basic structures of the neuron and its functions. - Visual pathways. - Basic anatomy. - 100 Billion neurons. Each has 10*4 synapses. - 10-20 Billion in cortex Methods for recording activity of a neuron - Neurons exist in ion-rich solution, with a higher concentration of K+ inside and a higher concentration of Na+ outside the cell. - In its resting state, a neuron had negative charge of -70mV relative to the outside. This changes during neuron firing. The Synapse - Tiny gaps between the terminal buttons of one neuron and the dendrite of the next. - Cocktail of neurochemicals flow into the synapse from the terminal buttons. - Synaptic cleft: 10-20nm; it may take only 10*15nm for synapse to take place. The initial
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