PSYC 231 Chapter Notes - Chapter 8: Disinhibition, Grey Matter, Amygdala
11 Mar 2017
School
Department
Course
Professor
Document Summary
Neuroscience: focuses on the brain and nervous system. Central nervous system: includes the brain and spinal cord. Brain: controls everything including thinking, reasoning, learning, and memory, as well as breathing, sleeping, eating, movement, sensory information, and the experience of emotions. Protected by cerebrospinal fluid (csf) which cushions the delicate brain and flows through spaces inside called ventricles. Somatic system: controls movement of the muscles. Sympathetic division: mobilizes energy (fight or flight) Parasympathetic division: supports systems that replenish the body"s energy stores (rest and digest) Bodily responses: the autonomic nervous system responds to arousing events in our environment (the sympathetic nervous system) Galvanic skin response (gsr): sweating is measured through the use of skin conductance as a slight electrical current passes through the skin. Electromyography (emg): measures muscle activity which estimates the electrical impulses of the muscles during contraction and relaxation. Computerized tomography (ct): takes a high resolution x-ray picture of the brain and can detect abnormalities in brain tissue.
