PSYC 100 Lecture Notes - Lecture 14: Axon Hillock, Myelin, Sensory Neuron

• School: McGill University
• Department: Psychology
• Course: PSYC 100
• Professor: Oliver Michael Hardt

Document Summary

Continuation of biology portion (chapter 5: how it communicates from one neuron to the next neuron (its electrical message, signal propagation along unmyelinated axon: Or does their activation give rise to an experience: memory research claim: memories do not physically exist in the brain; rather physical brain processes give rise to memories (generates experience that can"t be located on their own) Nervous system: 2 parts 1) cns brain and spinal cord, 2) pns somatic and autonomic, memory aid: somatic, skin. Sympathetic known for flight or fight response. If the signal accumulating at axon hillock in soma is strong enough, receiving neuron will fire (produce an electrical impulse at axon hillock) More negatively charged ions inside the cell than outside, unequal distribution of k+ and na+ establishes resting potential. Sodium potassium pump most important na+ ions are pushed in because of diffusion and electrostatic forces of attraction.