Lecture 17 - Topics - Learning

Lecture 17 - Topics - Learning - Introduction to Cognitive...

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    Introduction to Cognitive Science PSYCH 1102/COGST 1101/LING 1170/ PHIL 1910/CS 1710
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    Topics: Learning The role of the hippocampus Hippocampus abdominalis  
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    Outline Types of memory Some psychologists  really  like flowcharts Amnesia “Now” is “now” sir Learning What happens in STM,  stays  in STM, (unless  you learn it). What does the hippocampus do? Learning at the cellular level
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    Types of memory Some psychologists  really  like flowcharts
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    Implicit memory : Information that is learned  without knowing that we’ve learned it Explicit memory : Information that we  remember learning We can make more distinctions than that! Types of memory
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    Long-term  memory Short-term  memory Explicit memory/ Declarative memory Implicit memory/ Non-declarative memory Non- associative  memory Classical  conditioning Perceptual  memory Procedural  memory Semantic  memory Episodic  memory Specific  personal  experiences Facts &  world  knowledge Motor  skills Perceptual  cues S-R  pairings Habituation Types of memory
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    Types of memory
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    For our purposes the distinction is: Perceptual Memory Information stored as the current activation in the eyes &  ears and early perceptual systems Has a lifespan of 1/2s – a few seconds depending on  perceptual domain Short Term Memory (STM) The information we are actively thinking about  right now   which has a lifespan of seconds to minutes, unless  actively refreshed Long Term Memory (LTM) Information we can dig up if we need to, which has a  lifespan as long as we do, baring TBI Types of memory
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    Types of memory
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    Some evidence for different types of  memory Word recall task Present a list of words (about 1 per second) After last word recall as many as possible Free recall task Types of memory
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    Serial position curve Primacy effect The first few items in  a list are easy to  recall Putting items into  LTM requires time  and attention Items early in the list  get more time and  attention Items later in the list  get less attention Types of memory
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    Serial position curve Recency effect The last few items in  a list are easy to  recall Items we are  currently working  with are in STM We can only keep a  few items in STM, so  we remember those  few Types of memory
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