NROC63H3 Lecture : Behavioural Tasks Lecture

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Babinsky reflex: normal, toes will curl down if run something across bottom of foot; abnormal babinsky = curl up = ppl w/ cortical damage and normal infants (b/c cortex not fully developed) Animals like rats/cats when typically faced with upward slope, have tendency to climb up it: inclined plane: How far can animal climb up b4 falling off or slipping back (either. How you put plane, how wide plane is, texture of plane, angle of distance/time) incline = variable. Smoother plane = more hard for the animal to go up b/c slippery. More steep the incline angle = harder for animal to go up. Tool used to assess development and age. Young animal can go up further, in faster time, on steep angle even if the plane is slippery compared to elderly rats (24-26 mths); their motor coordination becomes poor. Wire mesh = easy to grab onto even at steeper angles: traversing narrow path:

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