ArticleThe Journal of neuroscience : the official journal of the Society for Neuroscience2013
Binaural gain modulation of spectrotemporal tuning in the interaural level difference-coding pathway.
Article in The Journal of neuroscience : the official journal of the Society for Neuroscience, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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Who cites it
11 citing papers in PubMed.
- Spike threshold adaptation diversifies neuronal operating modes in the auditory brain stem.Journal of neurophysiology · 2019Article
- Neural coding and perception of auditory motion direction based on interaural time differences.Journal of neurophysiology · 2019Article
- Multidimensional stimulus encoding in the auditory nerve of the barn owl.The Journal of the Acoustical Society of America · 2018Article
- Azimuth and envelope coding in the inferior colliculus of the unanesthetized rabbit: effect of reverberation and distance.Journal of neurophysiology · 2014Article
- Emergence of band-pass filtering through adaptive spiking in the owl's cochlear nucleus.Journal of neurophysiology · 2014Article
- The natural history of sound localization in mammals--a story of neuronal inhibition.Frontiers in neural circuits · 2014Article
- Neuronal specializations for the processing of interaural difference cues in the chick.Frontiers in neural circuits · 2014Review
- Bilateral gain control; an "innate predisposition" for all sorts of things.Frontiers in neurorobotics · 2014Article
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3 authors.
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Abstract
In the brainstem, the auditory system diverges into two pathways that process different sound localization cues, interaural time differences (ITDs) and level differences (ILDs). We investigated the site where ILD is detected in the auditory system of barn owls, the posterior part of the lateral lemniscus (LLDp). This structure is equivalent to the lateral superior olive in mammals. The LLDp is unique in that it is the first place of binaural convergence in the brainstem where monaural excitatory and inhibitory inputs converge. Using binaurally uncorrelated noise and a generalized linear model, we were able to estimate the spectrotemporal tuning of excitatory and inhibitory inputs to these cells. We show that the response of LLDp neurons is highly locked to the stimulus envelope. Our data demonstrate that spectrotemporally tuned, temporally delayed inhibition enhances the reliability of envelope locking by modulating the gain of LLDp neurons' responses. The dependence of gain modulation on ILD shown here constitutes a means for space-dependent coding of stimulus identity by the initial stages of the auditory pathway.
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