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Prehatch color stimulation effects on color pecking preferences and color discrimination learning in white leghorn chicks
Author(s) -
Fischer Gloria J.,
Davis Stephen J.,
Nord John A.
Publication year - 1975
Publication title -
developmental psychobiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.055
H-Index - 93
eISSN - 1098-2302
pISSN - 0012-1630
DOI - 10.1002/dev.420080609
Subject(s) - pecking order , psychology , colored , color discrimination , color vision , stimulation , audiology , developmental psychology , biology , neuroscience , artificial intelligence , medicine , computer science , ecology , materials science , composite material
Four experiments assessed the effects of stimulating chick embryos with colored light at 2 intensity levels. Both posthatch color pecking preferences (Experiments 1 and 2) and color discrimination learning (Experiments 3 and 4) were unaffected. These results affirm and extend a prior finding of no pre‐ and posthatch colored light stimulation effect on posthatch color preferences in ducklings. The color pecking preferences found replicated prior findings with chicks. However, they differed from the approach color preferences observed in color discrimination learning.