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Lecture 5

Psychology Lecture 5 Oct 9, 2013.docx

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Lakehead University
PSYCH 1100
Mike Moland

PSYC-1100-YB RB-1042 Dr. M. Moland Psychology October 9, 2013 7:00 PM Exam 70% slides, 10% video questions, 20% textbook questions (what we didn't cover in class) Limbic System Thalamus (relay, first): the brain's sensory switchboard located on the top of the brainstem Hypothalamus (hypothalamus): lies just below the thalamus, involved in hunger, regulating thirst, body temperature, and sexual behaviour Cerebellum: well learned task, your cerebellum will eventually take over and you can do it without thinking  Attached to the rear of the brainstem  Functions are: o Processing sensory input, coordinating movement and balance o Discriminating sounds, music (rhythm) o Spatial reasoning o Integrating input from various sensory systems Memory: Implicit or Procedural memory (opening a locker) Amygdala: fear and aggression - remove amygdala = mellow, stimulate amygdala = rage or fear  Emotional evaluator  Involved with processing emotional memories  Conditioned responses Hippocampus: processes memory - damage to it prevents new memories of facts and episodes Cerebral Hemispheres Cerebrum: is composed of two cerebral hemispheres, left and right Corpus callosum: physical connection between the right and left hemispheres Cerebral cortex: like bark on a tree, covers the cerebral hemispheres; primarily responsible for higher mental processes (language, memory, thinking - but doesn't mean the right doesn't have a part in a whole) Glial cells: cells in the nervous system that support, nourish and protect neurons, produce myelin They may also play a role in learning and thinking. Einstein's brain did not have more or larger neurons, but it did reveal a much greater concentration of glia than in the average brain Lobes of the Brain Frontal Lobe: involved with movement, problem solving, decision making, inhibition, language, planning (ex: Phineas Gage, bar went through his head - he became impulsive, prone to swearing, couldn't inhibit impulses, like Homer Simpson) Parietal Lobe: involved with sense of touch, visual spatial ability Occipital Lobes: involved with vision; orientation of lines, movement Temporal Lobes: involved with memory, hearing, language, complex vision (hippocampus) Driving a Car: Cerebellum - coordinates left and right hand movements on steering wheel, driving while daydreaming Medulla - regulates breathing and heart-rate Page 1 PSYC-1100-YB RB-1042 Dr. M. Moland Pons - assists in the coordination of eyes movement and alertness Reti
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