PSY 250 Lecture Notes - Lecture 18: Morris Water Navigation Task, Temporal Lobe, Spatial Memory
6 Aug 2018
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Document Summary
What is the hippocampus" role in memory and is it different from other brain regions: object-recognition memory, spatial memory, hippocampus and temporally-graded retrograde amnesia, brain structures involved in memory. Neural basis of object memory (object recognition: animal studies of mtl function: (i) research involves monkeys. Task: delayed nonmatching-to-sample (gaffan, 1974; mishkin & delacour, 1975) 90% accuracy with delays of a few minutes or less. But, perform at chance level with longer delays (ii) research involves rats. Perform well with delays up to a minute. Rhinal cortex (entorhinal & perirhinal) was often damaged along with hippocampus & amygdala. "hippocampus = memory" is being challenged by new data. Hippocampus is not necessarily for memory (?) Rhinal cortex seems to play a more critical role in object recognition. Animal studies of hippocampus in spatial memory: rat experiments: Morris water maze (pool of water with platforms) Take away platforms, animal swims around area. Radial arm maze (any kind of maze with arms ex.
