Multiplexing of motor information in the discharge of a collision detecting neuron during escape behaviors.
Multiplexing of motor information in the discharge of a collision detecting neuron during escape behaviors.
复制标题
逃生行为期间碰撞检测神经元放电时运动信息的多路复用。
DOI:
10.1016/j.neuron.2010.12.007
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发表时间:
2011-01-13
期刊:
影响因子:
16.2
通讯作者:
Gabbiani, Fabrizio
中科院分区:
文献类型:
--
作者:
Fotowat, Haleh;Harrison, Reid R.;Gabbiani, Fabrizio
Locusts possess an identified neuron, the descending contralateral movement detector (DCMD), conveying visual information about impending collision from the brain to thoracic motor centers. We built a telemetry system to simultaneously record, in freely behaving animals, the activity of the DCMD and of motoneurons involved in jump execution. Co-contraction of antagonistic leg muscles, a required preparatory phase, was triggered after the DCMD firing rate crossed a threshold. Thereafter, the number of DCMD spikes predicted precisely motoneuron activity and jump occurrence. Additionally, the time of DCMD peak firing rate predicted that of jump. Ablation experiments suggest that the DCMD, together with a nearly identical ipsilateral descending neuron, is responsible for the timely execution of the escape. Thus, three distinct features that are multiplexed in a single neuron’s sensory response to impending collision – firing rate threshold, peak firing time, and spike count – likely control three distinct motor aspects of escape behaviors.
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DOI:
10.1007/bf00604897
发表时间:
1988-01-01
影响因子:
2.1
作者:
BURROWS, M;PFLUGER, HJ
通讯作者:
PFLUGER, HJ
影响因子:
25
作者:
Gu, Yong;Angelaki, Dora E.;DeAngelis, Gregory C.
通讯作者:
DeAngelis, Gregory C.
DOI:
10.1523/jneurosci.5179-08.2009
发表时间:
2009-05-20
期刊:
The Journal of neuroscience : the official journal of the Society for Neuroscience
影响因子:
--
作者:
Cohen MR;Newsome WT
通讯作者:
Newsome WT
影响因子:
2.5
作者:
Fotowat, Haleh;Fayyazuddin, Amir;Gabbiani, Fabrizio
通讯作者:
Gabbiani, Fabrizio
影响因子:
25
作者:
Friedrich, RW;Habermann, CJ;Laurent, G
通讯作者:
Laurent, G