PSY100H1 Lecture Notes - Phineas Gage, Orbitofrontal Cortex, Frontal Lobe

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17 Feb 2012
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PSY100H1 Full Course Notes
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PSY100H1 Full Course Notes
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vta releases dopamine into n. a amygdala, pfc, etc. the fact that our experience of world relies intimately on the brain is shown in the bizarre perceptual experiences of patients with certain kinds of neurological damage or dysfunction. the two hemispheres of the brain are actually two mini-brains connected by a bundle of fibers, the corpus collosum. In 1930s-1950s, cutting the corpus collosum became all the rage, to help people with epileptic seizures and other disorders. amazingly, these people seemed pretty normalbut clever psychologists (like gazzaniga, your textbook author) discovered ways of communicating separately with the now-independent hemispheres. thc binds to two types of unique receptors, the cannabinoid receptors: cb1 and cb2. Thc in 1990s, researchers discovered the endocannabinoids, like anandamide, which bind to cb receptorsalthough their function is still under investigation strains of mice w/o cb receptors --> less appetite, reduced lifespan, reduced activitybut enhanced memory!

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