PSYB30H3 Chapter Notes - Chapter 7: Ct Scan, Wilhelm Wundt, Disinhibition
Document Summary
Best way to think of our physiologies is as a package of potentialities for personality traits. Nervous system is made up of: central nervous system (cns) which includes the brain and spinal cord, peripheral nervous system (pns) which includes: Somatic nervous system which controls movement of muscles. Autonomic nervous system which regulates smooth muscle, cardiac muscle, and glands. Sympathetic division which mobilizes energy (fight or flight) Parasympathetic division which supports systems that replenish the body"s energy store. Brain is protect by cerebrospinal fluid (csf) that cushions brain, and flows through spaces in the brain called ventricles. Researchers hypothesize differences in bodily response, brain structure, brain activity, and biochemical activity are all related to individual differences in personality. It is the autonomic nervous system that responds to arousing events in the environment: when aroused the sympathetic division responds by increasing heart rate, blood pressure, blood flow to extremities, respiration, sweating and muscle activity.
