Psychology 2320A/B Chapter Notes - Chapter 3: Quantitative Trait Locus, Fetal Alcohol Spectrum Disorder, Parasympathetic Nervous System
Document Summary
Glial cells and neurons, sheathed in myein shaping of brain = pruning, uneeded cells are eliminated: pruning, underlie decrease in gray matter that occurs in adolescence. Nerves outside cns, that transmit messages = pns: somatic: sensory organs and muscles, voluntary, autonomic: involuntary arousal and emotions increase arousal : sympathetic. Nervous system close communication with endocrine system. Cerebellum: movement and cognitive processing: midbrain fibres that connect with hindbrain. Reticular activating system : influences arousal state (wake/sleep: midbrain + hindbrain = brainstem, forebrain. Two cerebral hemispheres with an outer surface = cortex. Hemispheres connected by corpus callosum, each has 4 lobe. Hemis good for sensory processing, motor control, higher mental functioning (info processing, learning, memory) Thalamus = processing and relaying info between hemi and other parts of cns. Hypothalamus = regulates basic urges (hunger, thirst, sex) Limbic system includes hippocampus and amygdala (memory and emotion)
