Journal ArticleDOI
A dendritic model of coincidence detection in the avian brainstem
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TLDR
The model has enabled us to explore features of the coincidence detector neurons unexplained by a simpler biophysical model, including the effect of synapse location and multiple dendrites.About:
This article is published in Neurocomputing.The article was published on 1999-06-01. It has received 32 citations till now. The article focuses on the topics: Coincidence detection in neurobiology.read more
Citations
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Journal ArticleDOI
Neuron: A Tool for Neuroscientists
TL;DR: This article describes two tools that address the problem of how to achieve computational efficiency and accuracy in simulation environments for neurons.
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Experience-dependent refinement of inhibitory inputs to auditory coincidence-detector neurons
TL;DR: In mammals with well developed low-frequency hearing, a spatial refinement of ionotropic inhibitory inputs occurs on medial superior olivary neurons during development, and this refinement is experience dependent and does not develop in mammals that do not use interaural time differences for sound localization.
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Coding of auditory space.
TL;DR: Owls can localize sounds by using either the isomorphic map of auditory space in the midbrain or forebrain neural networks in which space is not mapped.
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Axonal site of spike initiation enhances auditory coincidence detection.
TL;DR: Computer simulation showed that the geometry of the initiation site was optimized to reduce the threshold of spike generation and to increase the ITD sensitivity at each CF, especially in high-CF neurons.
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A model for interaural time difference sensitivity in the medial superior olive: interaction of excitatory and inhibitory synaptic inputs, channel dynamics, and cellular morphology.
TL;DR: Simulations of physiological results from the gerbil medial superior olive reveal that blocking glycinergic inhibition can shift the tuning for the interaural time difference (ITD) of the cell, and suggests a mechanism for dynamically “fine-tuning” the ITD sensitivity of MSO cells by the opponency between depolarizing sodium currents and hyperpolarizing inhibitory currents.
References
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The NEURON simulation environment
TL;DR: This work presents the basic ideas that would help informed users make the most efficient use of NEURON, the powerful and flexible environment for implementing models of individual neurons and small networks of neurons.
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A circuit for detection of interaural time differences in the brain stem of the barn owl
TL;DR: Findings indicate that the magnocellular afferents work as delay lines, and the laminaris neurons work as co- incidence detectors, which suggest that interaural time differences and their phase equivalents are mapped in each frequency band along the dorsoventral axis of the nucleus laminari.
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The role of dendrites in auditory coincidence detection
TL;DR: It is shown that dendrites improve the coincidence-detection properties of the cells, and the cell morphology and the spatial distribution of the inputs enrich the computational power of these neurons beyond that expected from ‘point neurons’ (model neurons lacking dendrite).
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Two voltage-dependent K+ conductances with complementary functions in postsynaptic integration at a central auditory synapse
Helen M. Brew,Ian D. Forsythe +1 more
TL;DR: Two types of potassium conductance were found which allow high frequency auditory information to be passed accurately across the MNTB relay synapse and separately, such conductances may perform analogous functions elsewhere in the nervous system.
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In vitro analysis of optimal stimuli for phase-locking and time-delayed modulation of firing in avian nucleus laminaris neurons.
TL;DR: It is proposed that NM cells fire in synchrony to generate large PSCs during acoustic stimulation, and these findings suggest that the firing responses of NL neurons are determined primarily by their membrane properties.