Multiphasic on/off pheromone signalling in moths as neural correlates of a search strategy.
Multiphasic on/off pheromone signalling in moths as neural correlates of a search strategy.
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DOI：
10.1371/journal.pone.0061220
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发表时间：
2013
期刊：
影响因子：
3.7
通讯作者：
Lucas P
中科院分区：
文献类型：
--
作者：
Martinez D;Chaffiol A;Voges N;Gu Y;Anton S;Rospars JP;Lucas P
Insects and robots searching for odour sources in turbulent plumes face the same problem: the random nature of mixing causes fluctuations and intermittency in perception. Pheromone-tracking male moths appear to deal with discontinuous flows of information by surging upwind, upon sensing a pheromone patch, and casting crosswind, upon losing the plume. Using a combination of neurophysiological recordings, computational modelling and experiments with a cyborg, we propose a neuronal mechanism that promotes a behavioural switch between surge and casting. We show how multiphasic On/Off pheromone-sensitive neurons may guide action selection based on signalling presence or loss of the pheromone. A Hodgkin-Huxley-type neuron model with a small-conductance calcium-activated potassium (SK) channel reproduces physiological On/Off responses. Using this model as a command neuron and the antennae of tethered moths as pheromone sensors, we demonstrate the efficiency of multiphasic patterning in driving a robotic searcher toward the source. Taken together, our results suggest that multiphasic On/Off responses may mediate olfactory navigation and that SK channels may account for these responses.
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DOI：
10.1007/bf00611929
发表时间：
1987-01-01
影响因子：
2.1
作者：
CHRISTENSEN, TA;HILDEBRAND, JG
通讯作者：
HILDEBRAND, JG
影响因子：
--
作者：
Lei H;Riffell JA;Gage SL;Hildebrand JG
通讯作者：
Hildebrand JG
影响因子：
3.5
作者：
Marshall B;Warr CG;de Bruyne M
通讯作者：
de Bruyne M
影响因子：
64.8
作者：
MAFRANETO, A;CARDE, RT
通讯作者：
CARDE, RT
影响因子：
2.8
作者：
Budick, Seth A.;Dickinson, Michael H.
通讯作者：
Dickinson, Michael H.