학술논문

Looking in the correct location for a hidden object: brief note about the memory of donkeys (Equus asinus).
Document Type
Article
Source
Ethology Ecology & Evolution. 2011, Vol. 23 Issue 2, p187-192. 6p. 1 Diagram, 1 Chart, 1 Graph.
Subject
*DONKEYS
*ANIMAL memory
*COGNITIVE ability
*SHORT-term memory
*ANIMAL behavior
*MEMORY research
*FORELIMB
*BINOMIAL distribution
*COGNITIVE development
Language
ISSN
0394-9370
Abstract
In recent years, considerable literature has been published on cognition in horses; however, much less is known about the cognitive abilities of domestic donkey (Equus asinus). This study aimed to expand our knowledge of donkey cognition by assessing their short-term memory capacity. We employed a detour problem combined with the classic delayed-response task, which has been extensively used to compare working memory duration in a variety of different species. A two-point choice apparatus was used to investigate location recall and search behaviour for a food target, after a short delay following its disappearance. Four donkeys completed the task with a 10 sec delay, while four others were tested with a 30 sec delay. Overall, each group performed above chance level on the test, showing that subjects had successfully encoded, maintained, and retrieved the existence and location of the target despite the loss of visual contact. [ABSTRACT FROM AUTHOR]