Temporal hyperacuity in the electric sense of fish
Temporal hyperacuity in the electric sense of fish
复制标题
鱼电感中的颞部超敏
DOI：
10.1038/318178a0
复制
发表时间：
1985
期刊：
影响因子：
64.8
通讯作者：
W. Heiligenberg
中科院分区：
文献类型：
--
作者：
G. Rose;W. Heiligenberg
最近已经很明显，某些任务的感觉阈值低于个体受体1的特性所预期的阈值。这种感知能力，被称为超敏，揭示了中枢神经系统令人印象深刻的信息处理能力。虽然很多人都知道空间超敏，时间超敏已经得到很少的关注2。在这里，我们表明，电鱼，Eigenmannia，可以检测调制的时间（相位）的电信号至少小到400纳秒。这种敏感性超过了个体相位编码传入的时间分辨率。这种超敏性是由平行传入神经输入到中枢神经系统的非线性收敛引起的;来自体表特定区域的阈下输入积累起来，以允许检测这些极小的时间调制。
It has recently become evident that sensory thresholds for certain tasks are lower than those expected from the properties of individual receptors1. This perceptual capacity, termed hyperacuity, reveals the impressive information-processing abilities of the central nervous system. Although much is known about spatial hyperacuity, temporal hyperacuity has received little attention2. Here we demonstrate that an electric fish, Eigenmannia, can detect modulations in the timing (phase) of an electrical signal at least as small as 400 ns. Such sensitivity exceeds the temporal resolution of individual phase-coding afferents. This hyperacuity results from a nonlinear convergence of parallel afferent inputs to the central nervous system; subthreshold inputs from particular areas of the body surface accumulate to permit the detection of these extremely small temporal modulations.
猫头鹰的耳蜗核处理不同的声音定位线索。
DOI：
10.1121/1.392499
发表时间：
1985
期刊：
The Journal of the Acoustical Society of America
影响因子：
--
作者：
Konishi,M;Sullivan,WE;Takahashi,T
通讯作者：
Takahashi,T