期刊
JOURNAL OF EXPERIMENTAL BIOLOGY
卷 207, 期 1, 页码 123-131出版社
COMPANY BIOLOGISTS LTD
DOI: 10.1242/jeb.00725
关键词
vision; olfaction; fruit fly; Drosophila; sensorimotor integration; sensory fusion; optomotor; multimodal integration
类别
Animals actively seeking food and oviposition sites must integrate feedback from multiple sensory modalities. Here, we examine visual and olfactory sensorimotor interactions in Drosophila. In a tethered-flight simulator, flies modulate wingbeat frequency and amplitude in response to visual and olfactory stimuli. Responses to both cues presented simultaneously are nearly identical to the sum of responses to stimuli presented in isolation for the onset and duration of odor delivery, suggesting independent sensorimotor pathways. Visual feedback does, however, alter the time course of the odor-off response. Based on the physiology of the flight motor system and recent free-flight analyses, we present a hypothetical model to account for the summation or superposition of sensorimotor responses during flight.
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