ArticleThe Journal of neuroscience : the official journal of the Society for Neuroscience2006
Noise reduction of coincidence detector output by the inferior colliculus of the barn owl.
Article in The Journal of neuroscience : the official journal of the Society for Neuroscience, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
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Who cites it
13 citing papers in PubMed.
- Barn owls specialized sound-driven behavior: Lessons in optimal processing and coding by the auditory system.Hearing research · 2024Review
- Envelope contributions to the representation of interaural time difference in the forebrain of barn owls.Journal of neurophysiology · 2017Article
- Optimal nonlinear cue integration for sound localization.Journal of computational neuroscience · 2017Article
- A functional circuit model of interaural time difference processing.Journal of neurophysiology · 2014Article
- Side peak suppression in responses of an across-frequency integration model to stimuli of varying bandwidth as demonstrated analytically and by implementation.Journal of computational neuroscience · 2014Article
- Resolution of interaural time differences in the avian sound localization circuit-a modeling study.Frontiers in computational neuroscience · 2014Article
- Azimuthal sound localization in the European starling (Sturnus vulgaris): II. Psychophysical results.Journal of comparative physiology. A, Neuroethology, sensory, neural, and behavioral physiology · 2013Article
- The representation of sound localization cues in the barn owl's inferior colliculus.Frontiers in neural circuits · 2012Article
- Owl's behavior and neural representation predicted by Bayesian inference.Nature neuroscience · 2011Article
- Auditory processing, plasticity, and learning in the barn owl.ILAR journal · 2010Review
- Variability reduction in interaural time difference tuning in the barn owl.Journal of neurophysiology · 2008Article
- Preservation of spectrotemporal tuning between the nucleus laminaris and the inferior colliculus of the barn owl.Journal of neurophysiology · 2007Article
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2 authors.
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Abstract
A recurring theme in theoretical work is that integration over populations of similarly tuned neurons can reduce neural noise. However, there are relatively few demonstrations of an explicit noise reduction mechanism in a neural network. Here we demonstrate that the brainstem of the barn owl includes a stage of processing apparently devoted to increasing the signal-to-noise ratio in the encoding of the interaural time difference (ITD), one of two primary binaural cues used to compute the position of a sound source in space. In the barn owl, the ITD is processed in a dedicated neural pathway that terminates at the core of the inferior colliculus (ICcc). The actual locus of the computation of the ITD is before ICcc in the nucleus laminaris (NL), and ICcc receives no inputs carrying information that did not originate in NL. Unlike in NL, the rate-ITD functions of ICcc neurons require as little as a single stimulus presentation per ITD to show coherent ITD tuning. ICcc neurons also displayed a greater dynamic range with a maximal difference in ITD response rates approximately double that seen in NL. These results indicate that ICcc neurons perform a computation functionally analogous to averaging across a population of similarly tuned NL neurons.
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