PSYC 1020H Lecture Notes - Lecture 3: Acetylcholine, Frontal Lobe, Selective Serotonin Reuptake Inhibitor
27 Sep 2017
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Biological bases of behavior - structure of a neuron: presynaptic neuron sends nerve impluse to the postsynaptic neuron. Generating an action potential: when a neuron is at rest, the inside is negatively charged relatively to the outside, when the neuron is stimulated, positively charged particles enter. Synaptic cleft (filled with fluid: neurotransmitters, can be excitatory or inhibitory, acetylcholine (ach, memory, attention and arousal, bitten by a black widow will cause a large wave of acetylcholine that causes you to lose. Control of skeletal muscles control of muscles and movement: dopamine. Pleasurable emotions: voluntary movement, associated with parkinson"s tremors, difficulties controlling movement. Treatment includes increasing dopamine but this results in symptoms similar to schizophrenia (too much dopamine) Serotonin sleep, eating, arousal, mood depression is caused by low serotonin re-uptake is when it gets sucked back into neurons. Ssri selective serotonin re-uptake inhibitor: norepinephrine, mood, arousal, attention, gaba. Plays a role in anti anxiety medication: glutamate.
