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Proboscis extension reflex : ウィキペディア英語版 | Proboscis extension reflex Proboscis extension reflex (PER) is the extension by an insect with an extendable proboscis (e.g. a bee or fly) of her proboscis (sticking out of her tongue) as a reflex to antennal stimulation. It is evoked when a sugar solution is touched to a bee's antenna. == Use of PER == The proboscis extension reflex is part of an insect's feeding behavior. When the antenna is stimulated by sugar water, the proboscis automatically sticks out to drink.〔Braun and Bicker. 1992. Habituation of an Appetitive Reflex in the Honeybee. Journal of Neurophysiology 67: 588-598.〕 This reflex response can be used to study insect learning and memory in the context of foraging. The PER paradigm is most commonly used in associative learning experiments in honeybees and bumblebees because of the ease in using PER in simple Pavlovian conditioning.〔Bitterman et al. 1983. Classical Conditioning of Proboscis Extension in Honeybees (''Apis mellifera''). J. Comp. Psych. 97: 107-119.〕
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