Answer:
a perceptual set
Explanation:
A perceptual set -
It refers to the condition , where the mind perceive only certain specific thing , ignoring the rest objects , is referred to as a perceptual set.
It is not necessary than the mind of mammals tends to remember all the things he see around him , as he only remember only very limited objects .
Hence, from the given scenario of the question,
Chimpanzees' too remember only certain things .
Therefore , the correct term is a perceptual set .
