PSYC 3458 Midterm: BioPsych Exam 3 – Study Guide

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Vta addiction, stimulates release of epinephrine incr heart rate, blood pressure, Ionotropic vs. metabotropic receptors (exam 1) response: excitatory vs. inhibitory neurotransmitters (exam 1, acetylcholinesterase vs. monoamine oxidase, serotonin = monomaine neurotransmitter, action terminated by reuptake mechanisms back into presynaptic neuron and enzymatic degradation by moa. Inactivate synthetic enzyme; inhibit synthesis of nt: prevent storage of nt in vesicles, stimulate autoreceptors; inhibit synthesis/release of nt. Brain areas affected in schizophrenia: hippocampus, smaller in affected patients targeted amount of cell death in hippocampus, disordered pyramidal cells, correlation between cell disorder and. Definitions: hallucinations = perceptions occurring in absence of stimuli, delusions = beliefs that are contrary to reality, anhedonia = inability to feel pleasure, alogia = reduced speech output, catatonia = reduced movement. Definitions: dopamine (da): catecholamine derived from tyrosine - nt for modulating unwanted and wanted movements, on/off syndrome, on = increased tremors, off = increased rigidity.