PSY 111 Lecture Notes - Lecture 3: Caudate Nucleus, Reuptake, Methylphenidate
Document Summary
Study of links between biology and behavior. Cells that make up your nervous system. Communicate brain"s messages with the brain and to the rest of the body. Receive info from environment, carry info to cns. Carry info away from spinal cord toward body parts. Act as intermediaries between sensory and motor neurons. Receive signals and send them to the cell body. Carries impulses away from cell body to other neurons, muscles, or glands. Layer of fatty tissue that insulates the axon and facilitates faster communication. Neuron receives signals from other sensory receptors or other neurons. Positive ions are let into the cell (na+) Threshold: minimum intensity required to generate an action potential (-55mv) Chemical messages stored in a neuron that activate receptors of other neurons. At the end of axon, action potential triggers release of neurotransmitters. Neurotransmitters cross the synaptic gap (space between neurons) and bind to other neurons. Each has a different role and effect.