PSYC 1000 Lecture Notes - Lecture 3: Pituitary Gland, Hypothalamus, Emotional Expression

• School: University of Guelph
• Department: Psychology
• Course: PSYC 1000
• Professor: Paula Barata

Document Summary

Biological psychology study of links between biological and psychological: neuroscience behavioral genetics; evolutionary psychology; behavioral microbiology processes. Brain can change depending on how you use it: different behaviors, memorization. Action potential: electric info runs down neuron, resting potential = -70mv (more negative ions, action potential goes to +40mv (influx of sodium) How neurons communicate: all or none law. Deactivation: enzyme deactivation, binding to auto-receptors, passively drift out of the synaptic gap, reuptake. Specialized neurotransmitter systems: acetylcholine (ach) - memory, muscle activity, dopamine movement, learning, emotion, serotonin mood, endorphins pain, norepinephrine - mood. Molecule fills receptor site and activates it (acts like transmitter) Opiate drugs (heroin and morphine: antagonist. Molecule that fills the lock so the transmitter cannot get it and activate the receptor sire. Botulin (food poisoning: increasing/decreasing naturally occurring. L-dopa (for increases dopamine for parkinson"s disease) Observing functional changes in people with brain damage: where injuries are/what deficits are occurring, phineas gage stick impaled through skull.