ArticleThe Journal of neuroscience : the official journal of the Society for Neuroscience2013
Spectral context affects temporal processing in awake auditory cortex.
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 17 papers.
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Who cites it
17 citing papers in PubMed, 24 citations in OpenAlex.
- Receptive-field nonlinearities in primary auditory cortex: a comparative perspective.Cerebral cortex (New York, N.Y. : 1991) · 2024Article
- A Redundant Cortical Code for Speech Envelope.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2023Article
- Temporally precise population coding of dynamic sounds by auditory cortex.Journal of neurophysiology · 2021Article
- Extracellular voltage thresholds for maximizing information extraction in primate auditory cortex: implications for a brain computer interface.Journal of neural engineering · 2021Article
- Amplitude modulation encoding in the auditory cortex: comparisons between the primary and middle lateral belt regions.Journal of neurophysiology · 2020Article
- Spectral plasticity in monkey primary auditory cortex limits performance generalization in a temporal discrimination task.Journal of neurophysiology · 2020Article
- Amplitude modulation coding in awake mice and squirrel monkeys.Journal of neurophysiology · 2018Article
- Background noise exerts diverse effects on the cortical encoding of foreground sounds.Journal of neurophysiology · 2017Article
- Cluster-based analysis improves predictive validity of spike-triggered receptive field estimates.PloS one · 2017Article
- Effects of Signal-to-Noise Ratio on Auditory Cortical Frequency Processing.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2016Article
- Human Superior Temporal Gyrus Organization of Spectrotemporal Modulation Tuning Derived from Speech Stimuli.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2016Article
- Synaptic plasticity as a cortical coding scheme.Current opinion in neurobiology · 2015Review
- Hearing the light: neural and perceptual encoding of optogenetic stimulation in the central auditory pathway.Scientific reports · 2015Article
- Modulation-frequency-specific adaptation in awake auditory cortex.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2015Article
- Diverse cortical codes for scene segmentation in primate auditory cortex.Journal of neurophysiology · 2015Article
- Encoding frequency contrast in primate auditory cortex.Journal of neurophysiology · 2014Article
- Auditory map plasticity: diversity in causes and consequences.Current opinion in neurobiology · 2014Review
Corrections and comments
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Authors and funding
5 authors at 3 institutions in 2 countries.
Funding
Abstract
Amplitude modulation encoding is critical for human speech perception and complex sound processing in general. The modulation transfer function (MTF) is a staple of auditory psychophysics, and has been shown to predict speech intelligibility performance in a range of adverse listening conditions and hearing impairments, including cochlear implant-supported hearing. Although both tonal and broadband carriers have been used in psychophysical studies of modulation detection and discrimination, relatively little is known about differences in the cortical representation of such signals. We obtained MTFs in response to sinusoidal amplitude modulation (SAM) for both narrowband tonal carriers and two-octave bandwidth noise carriers in the auditory core of awake squirrel monkeys. MTFs spanning modulation frequencies from 4 to 512 Hz were obtained using 16 channel linear recording arrays sampling across all cortical laminae. Carrier frequency for tonal SAM and center frequency for noise SAM was set at the estimated BF for each penetration. Changes in carrier type affected both rate and temporal MTFs in many neurons. Using spike discrimination techniques, we found that discrimination of modulation frequency was significantly better for tonal SAM than for noise SAM, though the differences were modest at the population level. Moreover, spike trains elicited by tonal and noise SAM could be readily discriminated in most cases. Collectively, our results reveal remarkable sensitivity to the spectral content of modulated signals, and indicate substantial interdependence between temporal and spectral processing in neurons of the core auditory cortex.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.