Class Notes (808,384)
Canada (493,172)
Psychology (7,612)
PSYB32H3 (614)
Lecture 5


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University of Toronto Scarborough
Mark Schmuckler

Stan gets – saxophone player- jazz music  Recordings of a turning point of north American music  Visual control of posture Stiffregen, Schmuckler, and Gibson  Stronger response to movement on side than movement in the front  Infants- show a strong response to it- they fall  Think of the moving room example  These studies w/ adults, the response is not as strong- need fancier equipment  Infants at an early age will use visual info to control balance Visually guided local motion  The ability to guide yourself around the clutter  How well can young children use visual info to guide themselves around the world?  Looked at standing infants in the room o Child walked w/ moving room/ walls  What happened? Eleanor Gibson  Subsequent study to previous one  2 conditions o infant walked along pathway with nothing in the way o obstacles were present in pathway- baby had to around them  results o children showed larger posture rxn to room movement in visually guided situation (condition 2) VS when there were no obstacles o vision was being used for 2 purposes  control balance  guiding yourself around obstacle o when children had to use for 2 purposes, it was conflicted Infant’s ability to walk over barriers  infant’s variety aged 12 month to 30 month olds  walk back and forth along pathway- 2/3 there- barrier was there (2 poles with a stretched pole) o looked at infant’s how well they could walk over the barrier to get to mom o how well could they overcome the barrier? o The bar height was adjusted every time when they successfully do it  3 categories o successful walk over it (successful) o attempted to walk over barrier but knock it over (failure) o no attempt in crossing over (refusal)  results  success rate, failure, refusal  refusal rates at 18 months- have knowledge of barriers they can or cannot do it, refusal correlates w/ their ability to cross over the barrier-  threshold for successful crossing o the notion that aka Go ratio- success + failure divided by the # of tries  infants try as much as they could at various heights  but they stop trying at barriers they KNOW they can’t cross- they don’t even try  they have knowledge to what they cross ove
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