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Introduction to Cognitive Psychology - Department of Psychological ...

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Pr<strong>of</strong>. Greg Francis 8/12/11!! Some forms <strong>of</strong> depressionseem <strong>to</strong> be related <strong>to</strong> limits inthe use <strong>of</strong> theneurotransmitter sero<strong>to</strong>nin!! Prozac is a selectivesero<strong>to</strong>nin reuptake inhibi<strong>to</strong>r(SSRI)!! it keeps sero<strong>to</strong>nin bound <strong>to</strong> arecep<strong>to</strong>r for longer thanusual, thereby increasing itseffect!! Prozac is one <strong>of</strong> the mostwidely prescribed drugs in theworld!ProzacOther drugs!! Amphetamines: release <strong>of</strong> norepinephrin or dopamine!! LSD: resembles sero<strong>to</strong>nin!! Phenothiazine drugs: block dopamine!! Curare: blocks acetylcholine!! Cocaine: prolongs effects <strong>of</strong> dopamine!! Morphine: resembles small set <strong>of</strong> neurotransmitters called endorphinpeptides (modulate pain perception)!! Tetrahydrocannabinol (active ingredient in marijuana): binds <strong>to</strong>some neurorecep<strong>to</strong>rs, but it’s not clear what it doesPurdue UniversityPurdue UniversityConclusions!! Neural action potentials!! Shape <strong>of</strong> proteins!! Specific use <strong>of</strong> neurotransmitters for certain behaviors!! Current work on identification <strong>of</strong> role <strong>of</strong> neurotransmitters!! Lots <strong>of</strong> money <strong>to</strong> be made!! Lots more complicated than what we’ve seen hereNext time!! Neural sensitivity!! Neural codes!! Receptive fields!! CogLab on Blind spot due!!! How do you recognize your grandmother?Purdue UniversityPurdue UniversityPSY 200: Intro. <strong>to</strong> <strong>Cognitive</strong> <strong>Psychology</strong> 5

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