Psychology 1000 Lecture Notes - Lecture 7: Occipital Lobe, Parietal Lobe, Limbic System

• School: Western University
• Department: Psychology
• Course: Psychology 1000
• Professor: Dr.Mike

Document Summary

Synaptic transmission explains the delay in response latency for a reflex arc. Neurons are bags of fluid with semi-permeable membranes. Charge of neurons is due to ions (-70mv) Action potential results from na+ and + exchange. Neurons generate action potentials in an all or none fashion. Not called an action potential: called an epsp, result of depolarization at the post-synaptic. Hyperpolarization is the result of opening potassium channels, becomes even more negative than it was: ipsp. Acetylcholine, norepinephrine, dopamine, serotonin, gamma aminobutyric acid. Causes a high -> but dopamine is related to many systems like motor-related and sensory. Can cause drug-induced psychosis -> like schizophrenia; schizophrenia is caused by too much dopamine in the system. Acetylcholine is linked to movement, thus paralysis. Black widow venom stimulates the release of acetylcholine. If you ingest, it will paralyze respiratory system and you will die. Keeps dumping ach everywhere in the body;