Psychology 1000 Lecture Notes - Lecture 3: Parietal Lobe, Sensory Cortex, Occipital Lobe

• School: Western University
• Department: Psychology
• Course: Psychology 1000
• Professor: Terrence Biggs

Document Summary

The reflex concept; descartes: hu(cid:373)a(cid:374)s (cid:271)e studied (cid:862)like (cid:373)a(cid:272)hi(cid:374)es(cid:863, all actions are a response to external events, right in the motor-sense. Chain of events: stimulation of sense to brain to soul to muscle, energy taken in and reflected out **considered the soul** The neuron: main parts, diseases (ms from demyelination), abnormalities, types (pyramidal cell, motor neuron, glial cells. Polarization: resting potential of -70mv, rp created with na+ and k+ and negative ions. Action potential: steps/ process, all-or-none law, diagrams: ap graph w voltage and time; sodium channels/ ions. Stimulus intensity: mechanisms for determination: 1. Frequency of impulse: max rate= 1000 impulses/ sec. Myelin sheath: role as an insulator and a conductor, ms disease. Neurotransmitters: depolarize/ hyperpolarize (cid:373)e(cid:373)(cid:271)ra(cid:374)es, respe(cid:272)tively sti(cid:373)"g/ i(cid:374)hi(cid:271)iti(cid:374)g (cid:374)euro(cid:374) firi(cid:374)g (flow of na+ ions) The synapse: charles sherrington and his experiment, temporal summation, produces neurotransmitters. Deactivation of neurotransmitters (fain 1999: breakdown or reuptake.