Primate Cognition in the Lab Flashcards Preview

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Flashcards in Primate Cognition in the Lab Deck (45):

What is ecological validity? Why is it important to consider when discussing primate cognition in the lab?

possibility that experiments tap into real life problem solving skills; lab could suggest something when in actuality it is not true


What does "Match to Sample" (MTS) mean?

present sample, then alternatives, pick matching alternatives


What is special about match to sample processing?

all animals do in life, search world for good, good ecological validity


What is "transfer"?

apply learned concept or strategy to novel stimuli, require fewer "trials to criterion";
"learning to learn"


What is "first trial success"?

after training, full immediate transfer to novel task and/or stimuli w/o additional reinforcement

trained to novel set: success then transfer as good as can get


What helps perceptual integration?

locomotor and object play help; play helps develop sensorimotor skills


What is cross modal mapping?

can do visual-haptic and visual-auditory recognition of stimulus presented in other modality


Who is better at cross modal mapping, apes or monkeys?



What is the Weigl Principle?

can classify same object per different dimensions (color, size, shape, function)


What lab studies have studied how primates represent space and what have they shown about their ability?

primates can learn to navigate a virtual space i.e. some chimps can use toy object placed in 3D model to find real object in actual room, show efficient search abilities


Why would how primates represent space important for their survival?

efficient to never to go twice to the same hiding place in wild, chimp searches efficiently for food, etc.


Which primates are the most frequent tool users in the wild?

cebus (capuchin) and pan troglodytes (Chimp) most frequent tool users


What is object permanence?

ability to know object still exists even though it is hidden; remember location of multiple sties seen baited or not


Do primates exhibit object permanence? How have they exhibited this in the lab?

Yes; put ball in box, primate able to find it


Why is object permanence important for survival?

world = cluttered, animals need to know where things go


What are invisible displacements?

know that something is hidden, can infer that the object is gone even though did not see it go somewhere

i.e. Exp. hides apple at X, pear at Y, distracted, then see Exp eating apple => only look for Y


What are the result of invisible displacement tests?

several apes speies, but only one adult Cebus (of various monkeys tested), pass


What is the trap tube test supposed to test? Is it controversial?

causal reasoning; yes it's controversial, johnson has serious problems with this


What is the trap tube test?

1. clear tube with good in it, potential tools (in bundle, in pieces) to push food out in other room


How did Cebus respond to the trap tube test?

can hit upon solution after trying many alternatives, when trap mid tube, 1 Cebus learned to avoid, push food out other way but avoided even when trap rotated to top


How did apes respond to trap tube test?

apes tend to modify, try only appropriate tool

note: even chimps require many rials to learn, some persists in Cebus-like responses


What are the only three primates that interact in free play with objects?

Cebus, Papio, and Apes


How do chimps with extensive human interaction interact with nesting cups?

can spontaneously subassemble whole set


How do cebus and chimps do with nesting cups?

can put 1 or 2 small into large "pot method"


What is "insight" in relation to primates and completion of tasks?

when solution to task appears suddenly


How did Kohler's Chimp Sulta display insight?

-banana suspended over cage, suddenly got up and stacked boxes to reach it
-treat outside cage; later discovered 2 short sticks could be joined, immediately used


How would you describe chimps in how they approach problems?


-take many trials to learn, but sometimes adjust to change


Only ______ ________ apes regularly "subassemble"

human enculturated


What primates display numerosity?

chimps and orangutans tested


What can we say about numerosity in primates?

of those tested, can learn to associate numerical symbols with quantities up to about 9


(True/False) Chimps can spontaneously add numbers

True; once master numerical associations


What is the greedy giveaway task?

Chimps previously trained with numerals:

-presented with 2 piles of M&Ms, one large, one small
-whichever pile pointed by pointer chimp to is given to other chimp


What are the results of the greedy giveaway task?

chimps fail unless use numerals in place of piles

-suggests symbol intervening between animal and treat enables delayed response


What was unique about the language trained chimp, Sarah?

-immediate success on proportions and functional analogies


How would the Weigl Principle be important in the wild?

be able to distinguish details in group so can distinguish between ally, parent, or child


What would be a use of visible displacement in the wild?

see food going into mouth of another primate and disappear


What would be a use of invisible displacement in the wild?

watch hand disappear into the hand of another , who then moves away with it


On numerosity tasks, chimps perform better than what other test subjects?

college students


What is a typical numerosity test?

once number trained, briefly see series of numbers, must touch squares in order


What is an example of a transitivity test?

trained to choose A over B and B over C; tested chose A over C


What are the possible social implications of transitivity?

deduce relative rank among social group

i.e. A dominant over B, B dominant over C, A dominant over C?


What were the reversal learning tests?

train conditional discrimination, reverse, teach again


What were the results of the reversal learning tests?

after first reversed trial, changed response strategy


What were the results of the conditional MTS?

Primates do not show transfer between problems; primates see first problem as relational, so second is not "same problem" to a primate


What are the results of the oddity test?

monkeys show transfer, see what matches to go to next trial; apes show first trial success