منابع مشابه
Coincidence detection in the Hodgkin-Huxley equations.
Some of the cochlear nuclei in the auditory pathway are specialized for the sound localization. They compute the interaural time difference. The difference in sound timing is transduced by the dedicated neuronal circuit into a labeled line difference. The detector neurons along the delay line fire only when synaptic inputs reflecting signals from both cars arrive within a short time window. It ...
متن کاملCoincidence Detection in Pitch Perception
Pitch plays a critical role in the perception of speech prosody, melody of music, and in organizing the acoustic environment into different sources. Like timbre, pitch refers to many distinct percepts with a host of confusing terms. They include “spectral pitch” evoked by sinusoidal signals, “residue pitch” associated with unresolved (high) harmonics, very slow click trains, and envelope of amp...
متن کاملCoincidence detection with dynamic synapses.
Recent experimental findings show that the efficacy of transmission in cortical synapses depends on presynaptic activity. In most neural models, however, the synapses are regarded as static entities where this dependence is not included. We study the role of activity-dependent (dynamic) synapses in neuronal responses to temporal patterns of afferent activity. Our results demonstrate that, for s...
متن کاملA dendritic model of coincidence detection in the avian brainstem
We have constructed a detailed biophysical model of coincidence detector neurons in the nucleus laminaris (auditory brainstem) which are purported to detect interaural time di!erences (ITDs). In the model, ITD coding is improved when the inputs from both ears are located on the bipolar dendrites and segregated, over having both inputs on the soma: the model behaves like the in vivo coincidence ...
متن کاملGlycinergic inhibition tunes coincidence detection in the auditory brainstem
Neurons in the medial superior olive (MSO) detect microsecond differences in the arrival time of sounds between the ears (interaural time differences or ITDs), a crucial binaural cue for sound localization. Synaptic inhibition has been implicated in tuning ITD sensitivity, but the cellular mechanisms underlying its influence on coincidence detection are debated. Here we determine the impact of ...
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ژورنال
عنوان ژورنال: Nature Reviews Neuroscience
سال: 2002
ISSN: 1471-003X,1471-0048
DOI: 10.1038/nrn886