PSY100H1 Lecture Notes - Lecture 3: Dendrite, Alprazolam, Schizophrenia
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PSY100H1 Full Course Notes
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The action potential: when different ions cross the neuron membrane. A stimulus first causes sodium channels to open. The only change is more amplitude = frequency. Refractory period: neuron must return to its resting state by pumping out all positive ions within the cell wall: takes time to remove these ions and return to resting state cannot fire during this period. Patterns of activity patters of connectivity. Patters of patters layers of learning: brain is modeling itself as it models the world bottom up processing and top down processing. Many neurotransmitters with complex functions, many variations and. Important neurotransmitters: glutamate: excitatory cognitive, seizures, motivation, gaba: inhibitory seizures, anxiety, (e. g. xanax help gaba being more effectively to post-synaptic receptors. , acetylcholine (ach): excitatory and inhibitory pns vs. The center of high cognitive, reflective, and rational processes that make us human (i. e. capable of rationality, morality, long term goals )
