Colour vision in fallow deer: A behavioural study
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Colour vision in fallow deer : A behavioural study. / Birgersson, Jörn; Alm, Ulrika; Forkman, Björn.
I: Animal Behaviour, Bind 61, Nr. 2, 2001, s. 367-371.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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TY - JOUR
T1 - Colour vision in fallow deer
T2 - A behavioural study
AU - Birgersson, Jörn
AU - Alm, Ulrika
AU - Forkman, Björn
PY - 2001
Y1 - 2001
N2 - To examine whether fallow deer, Dama dama, have colour vision, we trained four adult females on a two-choice discrimination task, where a positive chromatic stimulus (green) and a negative achromatic stimulus (grey) had similar brightness. The criterion for learning was set at 80% correct responses. To exclude the possibility that the hinds used small differences in brightness to distinguish between the green and the grey stimulus, we conducted a test that differed from the training situation. A light green positive stimulus combined with a dark grey negative stimulus was alternated with a dark green positive stimulus combined with a light grey negative stimulus on every second trial. The positive green stimuli had different reflectance spectra. After training, each of the four hinds showed over 80% correct responses in the test. These results suggest that fallow deer can use colour vision in a discrimination situation by generalizing over slightly different colours, at least in the range of the green spectrum.
AB - To examine whether fallow deer, Dama dama, have colour vision, we trained four adult females on a two-choice discrimination task, where a positive chromatic stimulus (green) and a negative achromatic stimulus (grey) had similar brightness. The criterion for learning was set at 80% correct responses. To exclude the possibility that the hinds used small differences in brightness to distinguish between the green and the grey stimulus, we conducted a test that differed from the training situation. A light green positive stimulus combined with a dark grey negative stimulus was alternated with a dark green positive stimulus combined with a light grey negative stimulus on every second trial. The positive green stimuli had different reflectance spectra. After training, each of the four hinds showed over 80% correct responses in the test. These results suggest that fallow deer can use colour vision in a discrimination situation by generalizing over slightly different colours, at least in the range of the green spectrum.
UR - http://www.scopus.com/inward/record.url?scp=0034975374&partnerID=8YFLogxK
U2 - 10.1006/anbe.2000.1603
DO - 10.1006/anbe.2000.1603
M3 - Journal article
AN - SCOPUS:0034975374
VL - 61
SP - 367
EP - 371
JO - Animal Behaviour
JF - Animal Behaviour
SN - 0003-3472
IS - 2
ER -
ID: 369129399