ArticleCerebral cortex (New York, N.Y. : 1991)2016
Opponent Coding of Sound Location (Azimuth) in Planum Temporale is Robust to Sound-Level Variations.
Article in Cerebral cortex (New York, N.Y. : 1991), 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.
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Who cites it
28 citing papers in PubMed.
- Bihemispheric anodal transcranial direct-current stimulation over temporal cortex enhances auditory selective spatial attention.Experimental brain research · 2019Trial
- The spatially guided cocktail party effect shapes contralateral neural synchronization.Communications biology · 2026Article
- Humans can use positive and negative spectrotemporal correlations to detect rising and falling pitch.Nature human behaviour · 2026Article
- Population decoding of sound source location by receptive field neurons in the mouse superior colliculus.bioRxiv : the preprint server for biology · 2026Article
- Joint Population Coding and Temporal Coherence Link an Attended Talker's Voice and Location Features in Naturalistic Multi-talker Scenes.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2025Article
- Functional Connectivity Encodes Sound Locations by Lateralization Angles.Neuroscience bulletin · 2025Article
- Distinct Neuron Types Contribute to Hybrid Auditory Spatial Coding.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2024Article
- The perception of auditory motion in sighted and early blind individuals.Proceedings of the National Academy of Sciences of the United States of America · 2023Article
- Many but not all deep neural network audio models capture brain responses and exhibit correspondence between model stages and brain regions.PLoS biology · 2023Article
- Feasibility of Virtual Reality-Based Auditory Localization Training With Binaurally Recorded Auditory Stimuli for Patients With Single-Sided Deafness.Clinical and experimental otorhinolaryngology · 2023Article
- Do you hear what I see? How do early blind individuals experience object motion?Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2023Review
- Large group differences in binaural sensitivity are represented in preattentive responses from auditory cortex.Journal of neurophysiology · 2022Article
- Proficiency in Using Level Cue for Sound Localization Is Related to the Auditory Cortical Structure in Patients With Single-Sided Deafness.Frontiers in neuroscience · 2021Article
- Cerebral Representation of Sound Localization Using Functional Near-Infrared Spectroscopy.Frontiers in neuroscience · 2021Article
- Cortical mechanisms of spatial hearing.Nature reviews. Neuroscience · 2019Review
- Electrophysiological responses to lateral shifts are not consistent with opponent-channel processing of interaural level differences.Journal of neurophysiology · 2019Article
- Representation of Auditory Motion Directions and Sound Source Locations in the Human Planum Temporale.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2019Article
- How aging impacts the encoding of binaural cues and the perception of auditory space.Hearing research · 2018Review
- Active Sound Localization Sharpens Spatial Tuning in Human Primary Auditory Cortex.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2018Article
- Activity in Human Auditory Cortex Represents Spatial Separation Between Concurrent Sounds.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2018Article
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Authors and funding
4 authors.
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Abstract
Coding of sound location in auditory cortex (AC) is only partially understood. Recent electrophysiological research suggests that neurons in mammalian auditory cortex are characterized by broad spatial tuning and a preference for the contralateral hemifield, that is, a nonuniform sampling of sound azimuth. Additionally, spatial selectivity decreases with increasing sound intensity. To accommodate these findings, it has been proposed that sound location is encoded by the integrated activity of neuronal populations with opposite hemifield tuning ("opponent channel model"). In this study, we investigated the validity of such a model in human AC with functional magnetic resonance imaging (fMRI) and a phase-encoding paradigm employing binaural stimuli recorded individually for each participant. In all subjects, we observed preferential fMRI responses to contralateral azimuth positions. Additionally, in most AC locations, spatial tuning was broad and not level invariant. We derived an opponent channel model of the fMRI responses by subtracting the activity of contralaterally tuned regions in bilateral planum temporale. This resulted in accurate decoding of sound azimuth location, which was unaffected by changes in sound level. Our data thus support opponent channel coding as a neural mechanism for representing acoustic azimuth in human AC.
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