The fine-grained spatial abilities of three seed-caching corvids.
Learn Behav
; 33(1): 59-66, 2005 Feb.
Article
in En
| MEDLINE
| ID: mdl-15971493
ABSTRACT
We used a psychophysical method to examine the ability of three corvid species to discern fine-grained spatial information. Nutcrackers, pinyon jays, and scrub-jays were required to discriminate the distance between two landmarks on a computer screen in an operant chamber. All three species were able to discriminate between arrays that differed by 20 mm; the discrimination gradients for scrub-jays and pinyon jays were sharper than those for nutcrackers, however. The results suggest that differences in spatial memory among these species are not related to differences in fine-grained perception.
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Collection:
01-internacional
Database:
MEDLINE
Main subject:
Psychophysics
/
Space Perception
Limits:
Animals
Language:
En
Journal:
Learn Behav
Journal subject:
CIENCIAS DO COMPORTAMENTO
/
MEDICINA VETERINARIA
Year:
2005
Document type:
Article
Affiliation country: