Psychology

Psychology - Psychology Morevariables=lesspopulationofstudy

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Psychology 19:56 More variables = less population of study Failure to falsify hypothesis does not prove hypothesis Sampling Strategies: Random selection of participants Random assignments of roles (depending on conditions o Can be done with questionare Pre selection affect: Ex. Doing a study at 6:30 in the morning will make the people that show up at  6:30 in the morning very different than people who would show up at 10 Experiment assessment: How did they get data Where is it from Is it interpreted clearly Bias in data Demand Charactoristics:
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Unwillingly treating experimental group than placebo group o Ex. “Oh your getting way better” Solution: Double Blind test (both doctor and test don’t know whats what) Mirror Neurons: Used to mimic mouth and motor movements and auditory input to create  motor maps Culture learning: some of the things we learn are a cultural thing not human  instinct (washing hands) Called memes Modeling: brain creates and internal model of the outside world Commons problem: At some point common area because saturated Whenever commons become saturated, one person wants to take more, then  everyone wants to take more The problem is that it is logical except when everyone does it o Even then its logical because everyone is doing it Pleasure is heavily linked to learning: Ie. Eating (discovery of new food source) Neurochemical reward system Dopamine is key o Linked to attention Gambler’s fallacy: Tossing a coin and getting 10 heads in a row, the next toss will come up tails o False Belief perceverence: Humans tend to learn one thing, then after finding out it is  false, still defend it and believe it to be true
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Lecture 19:56 Genetic effects on behavior: Genome carries map of brain development o If brain develops a certain way then obviously that will influence behavior o Distinguishing influences between nature and nurture is quite difficult Ie. Musicianship “runs in the family” (genes or parental influence?) o If genes are heritable, we try to isolate the gene and study behavior  associated with that gene. (gene chip profiling) o Twins that were separated at birth have a lot of crazy coincidental  similarities: Skeptics would say: If you look at any two people you can find numerous crazy  similarities Social scientists say the way you look influences how you grow up Cognitive Neuroscience o How brain chemistry affects cognition o Phinius Gage helped pioneer the science Railroad spike in head, changed personality Means that if ¼ of brain can be damaged and you can still live, brain 
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This note was uploaded on 12/10/2010 for the course PSYCH 100 taught by Professor Fountain,m during the Winter '10 term at McGill.

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Psychology - Psychology Morevariables=lesspopulationofstudy

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