Psychology 1000 Lecture Notes - Lecture 6: Corpus Callosum, Brainstem, Fetal Alcohol Spectrum Disorder

• School: Western University
• Department: Psychology
• Course: Psychology 1000
• Professor: Mark Holden

Document Summary

Midbrain forebrain innermost portion, evolutionary oldest, most basic functions outermost portion, evolutionary newest, most complex functions. The hindbrain: brain stem like a stalk at the end of the spinal cord. Extreme alchohol levels suppress medulla, leads to heart/repiratory failure. Also the point where motor and sensory nerve tracts cross to the opposite side: left side of the brain control right side of body, right side of the brain controls left side of body. Bridge between the higher and lower levels of n. s. involved in sleeping/walking also involved in repiration: cerebellum. Nucleus accumbens reward and motivation: creates pleasure by releasing dopamine connection from the hypothalamus sex, drugs, favourite food activate this area, even predictive cues can cause the release of dopamine. Amygdala controls emotional response especially aggression/fear: stimulate one part may cause aggression, stimulate another may create fear can produce emotions without higher bran areas knowing , may be the basis for unconscious fears or other emotional responses.