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Lecture 20 - Topics - Embodied Cognition

Lecture 20 - Topics - Embodied Cognition - Introduction to...

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    Introduction to Cognitive Science PSYCH 1102/COGST 1101/LING 1170/ PHIL 1910/CS 1710
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    Topics: Embodied Cognition Thinking with your… ummm…body
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    Outline A review so far Some old material to keep in “mind” Embodied cognition I Crickets (as robots), Rats (as robots)… Human motor control Human movement & cognition Embodied cognition II …and Humans (as robots?)
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    A review so far Some old material to keep in “mind”
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    Philosophy of cognitive science Dualism There are  bodies  and there are  minds The minds are separate & distinct from the  bodies and do all the thinking Materialism (& functionalism) There are just bodies Cognition is carried out in the brain via a  computational process A review so far
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    Psychology & AI Symbolic systems We implement algorithms in the mind Cognition is implemented via syntactic  manipulation of discrete abstract symbols Connectionism There are no discrete representations Cognition is implemented via a distributed  representation across a number of nodes A review so far
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    Perception for action Our cognition serves a purpose Action in the world Humans as subsumption architecture How do we achieve something like this in a  complex organism like a human Nearly infinite possible goals Lots of possible movements A review so far
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    Embodied cognition Crickets (as robots) & Rats (as robots)
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    “Ago Ergo Cogito” I act, therefore I think Art Glenberg, UW-Madison Embodied cognition
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    Cognition isn’t just a brain process it is  the  interaction  of brains and bodies We implement cognition by using our bodies  in conjunction with our brains to manipulate  a particular physical space Embodied cognition
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    Crickets A real world example for a robot Female crickets find mates via “chirping” Localize sound source & go there (and mate?) Just a sound analog to the photovore Identify songs of their species as distinct from  other species Phonotaxis A real decision Embodied cognition
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    How do crickets do it? Female Cricket Male Cricket Embodied cognition
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    Each ear has two sound sources External sound Internal sound via spiracles At ear nearest to sound source External sound reaches ear first Internal sound is delayed via longer travel time Two signals out of phase At far ear Less of a phase shift Embodied cognition
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    System turns to out of phase side Localization & movement to sound With a direct perception to action system!
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