PSY 220 Lecture 2: Lecture 2

• School: University of Miami
• Department: Psychology
• Course: PSY 220
• Professor: Hurwitz Barry

Document Summary

2 types electrical responses neuron: action potential ( axon), large amount, if exceeds threshold, graded electrical response ( soma, dentrities) very small. Axon hillock: the point at which excitatory and inhibitory inputs are integrated, a decision to make whether to generate action potential. At synapse bind next soma and cause graded potential. Electrical inpluse, bind receptors on dendtries, somas cause pulses or channels open +/- ions create difference neuron exchange of ions. If there is a electrical difference in two regions, what we called electrical potential ( which is the difference in electrical charge inside relative to the outside of the cell) Resting membrane has to negative to generate positive spread. Resting membrane potential is established by ions inside and outside. Resting membrane potential :the inside of the nuron is slightly negative relative to the outside: forces: concentration gradient, electrical gradient. Inside: big fat protein anions ( player of the game: look at p4 of lecture 2.