期刊
LEARNING AND MOTIVATION
卷 37, 期 1, 页码 66-78出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.lmot.2005.03.002
关键词
bumblebees; habituation; exploratory behaviour; pattern preferences; flower recognition
Two experiments examined the exploratory behaviour of flower-naive bumblebees. Bees were tested four times in a 12-arm radial arm maze in which they never received reward. Patterned and unpatterned stimuli were presented at the end of each corridor and the choices of the bees were recorded. We examined the effects of two variables, time and the presentation of a new stimulus, on habituation to a visual pattern. In Experiment 1, once bees had shown an unlearned preference for a pattern, and the preference had habituated, a response decrement was maintained after a confinement in the colony of two hours. After a 24 h confinement, however, the pattern preference was restored, i.e., spontaneous recovery was observed. In Experiment 2, the presentation of a new stimulus triggered renewed responding to the old pattern to which the bees had habituated, i.e., dishabituation was observed. Habituation to visual patterns is modulated by time and by exposure to new stimuli so that exploration in the face of failure to find food persists and unrewarding visual patterns are not eliminated for long as possible sources of food. (c) 2005 Elsevier Inc. All rights reserved.
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