NDLI: Event memory and misinformation effects in a gorilla (Gorilla gorilla gorilla)

Content Provider	Springer Nature Link
Author	Schwartz, Bennett L. Meissner, Christian A. Hoffman, Megan Evans, Siân Frazier, Leslie D.
Copyright Year	2003
Abstract	Event memory and misinformation effects were examined in an adult male gorilla (Gorilla gorilla gorilla). The gorilla witnessed a series of unique events, involving a familiar person engaging in a novel behavior (experiment 1), a novel person engaging in a novel behavior (experiment 2), or the presentation of a novel object (experiment 3). Following a 5- to 10-min retention interval, a tester gave the gorilla three photographs mounted on wooden cards: a photograph depicting the correct person or object and two distractor photographs drawn from the same class. The gorilla responded by returning a photograph. If correct, he was reinforced with food. Across three experiments, the gorilla performed significantly above chance at recognizing the target photograph. In experiment 4, the gorilla showed at-chance performance when the event was followed by misinformation (a class-consistent, but incorrect photograph), but significantly above-chance performance when no misinformation occurred (either correct photograph or no photograph). Although the familiarity can account for these data, they are also consistent with an episodic-memory interpretation.
Starting Page	93
Ending Page	100
Page Count	8
File Format	PDF
ISSN	14359448
Journal	Animal Cognition
Volume Number	7
Issue Number	2
e-ISSN	14359456
Language	English
Publisher	Springer-Verlag
Publisher Date	2003-10-02
Publisher Place	Berlin, Heidelberg
Access Restriction	Subscribed
Subject Keyword	Primates Gorillas Memory Episodic memory Misinformation effects
Content Type	Text
Resource Type	Article
Subject	Experimental and Cognitive Psychology Ecology, Evolution, Behavior and Systematics

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