PSYC 100 LECTURE NOTES

PSYC 100 LECTURE NOTES - PSYC 100 LECTURE NOTES 11/02/2009...

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Unformatted text preview: PSYC 100 LECTURE NOTES 11/02/2009 13:58:00 Neuropsychology Cerebral Lateralization o Right brain and left brain o Split brain research Visual wiring General experiment Results o Intact brain research o Some popular issues Research Methods o EEG o Lesioning o Electrical Stimulation o CT, PET, and MRI Dopamine is a neurotransmitters, nicotine cocaine etc all increase levels of dopamine in the system Too much dopamine is often associated with schizophrenia Too little results in loss of motor control Parkinsons disease: jittering/shaking of the head, shaking symptom is due to a loss of dopamine in the system Glutamate: toxic to neurons, it will kill them Lou Gherigs disease is associated with too much glutamate in the brain Seratonin generally regulated with mood and emotion too little is associated with increased levels of depression, etc prozac prevents the elimination of excess seratonin. Endorphins Left Brain / Right Brain Some of the processes involved in language are in the left hemisphere o Space, shape/pattern etc., are located in the right hemisphere Right half of the body is wired to the left half of the brain, and vice versa Split brain patients 60s/early 50s treatment for extreme epilepsy was to sever the corpus callosum (tie b//t right and left hemisphere) right and left half of the brain are 2 separate masses of brain tissue epilepsy nerves fire rapidly and uncontrollably halving the brain creates a wall so that the entire brain does not get taken over by seizures to reduce the effect Perceptual Asymmetry: Exists when a perceptual based task is performed differently Popular issues about this: The way the left and right brain has been discussed all over talk about things like independent streams of consciousness (two kind of minds left=rational right=emotional, good and evil etc.) ALL myths Hemispheric modes of thinking: people may certain have an aptitude for language or artistic based tasks, but this is not driven or caused by the development of one half of the brain or the others Debates about the American school system carried out in terms of if were doing too much or not enough to educate the right and left halves of the brain. The way we teach has the consequence of strengthening the left side more than the right side (rightemotion, feel good about yourself etc etc) left- educational, etc etc o People just divide people into groups, good and evil, good and bad, these and those, etc etc. -- false 2/16/09 11/02/2009 13:58:00 Neuropsychology (2)...
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PSYC 100 LECTURE NOTES - PSYC 100 LECTURE NOTES 11/02/2009...

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