PSY-2012 Study Guide - Midterm Guide: Transcranial Magnetic Stimulation, Axon Terminal, Motor Cortex
Document Summary
Diagram of a neuron: neuron receives info in dendrite. In form of electrical impulse: axon sends info to next neuron, terminal branches. Neurons respond to neurotransmitters by generating electrical activity: when there are no neurotransmitters acting on a neuron it is at the resting potential, when neurotransmitters are released, they bind with receptor sites. Depolarization action potential repolarization refractory period: this process is halted by reuptake, when neurotransmitters go back into the axon terminal. Communication inside neurons is electrical: communication between neurons is chemical via neurotransmitters. Different neurotransmitters are different messengers: excitatory vs. inhibitory, gaba inhibitory, glutamate excitatory. Neural plasticity the (cid:374)er(cid:448)ous s(cid:455)ste(cid:373)"s a(cid:271)ilit(cid:455) to (cid:272)ha(cid:374)ge: development, learning, following injury/degeneration. The nervous system: structure: cns brain and spinal chord, pns carries messages to and from cns, everything besides the brain and the spinal cord. Somatic conveys information between cns and body, voluntary movement, interacts with external environment.
