ArticleJournal of the Association for Research in Otolaryngology : JARO2012
Neural mechanisms supporting robust discrimination of spectrally and temporally degraded speech.
Article in Journal of the Association for Research in Otolaryngology : JARO, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.
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Who cites it
19 citing papers in PubMed.
- Use of a predictor cue during a speech sound discrimination task in a Cntnap2 knockout rat model of autism.PloS one · 2025Article
- Perception of vocoded speech in domestic dogs.Animal cognition · 2024Article
- Article
- Noise-Sensitive But More Precise Subcortical Representations Coexist with Robust Cortical Encoding of Natural Vocalizations.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2020Article
- Robust Neuronal Discrimination in Primary Auditory Cortex Despite Degradations of Spectro-temporal Acoustic Details: Comparison Between Guinea Pigs with Normal Hearing and Mild Age-Related Hearing Loss.Journal of the Association for Research in Otolaryngology : JARO · 2018Article
- Rate, not selectivity, determines neuronal population coding accuracy in auditory cortex.PLoS biology · 2017Article
- Knockdown of Dyslexia-Gene Dcdc2 Interferes with Speech Sound Discrimination in Continuous Streams.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2016Article
- Degraded auditory processing in a rat model of autism limits the speech representation in non-primary auditory cortex.Developmental neurobiology · 2014Article
- Knockdown of the dyslexia-associated gene Kiaa0319 impairs temporal responses to speech stimuli in rat primary auditory cortex.Cerebral cortex (New York, N.Y. : 1991) · 2014Article
- Degraded speech sound processing in a rat model of fragile X syndrome.Brain research · 2014Article
- Article
- Speech sound processing deficits and training-induced neural plasticity in rats with dyslexia gene knockdown.PloS one · 2014Article
- Speech training alters tone frequency tuning in rat primary auditory cortex.Behavioural brain research · 2014Article
- Increasing diversity of neural responses to speech sounds across the central auditory pathway.Neuroscience · 2013Article
- Effects of spectral and temporal disruption on cortical encoding of gerbil vocalizations.Journal of neurophysiology · 2013Article
- Cortical speech-evoked response patterns in multiple auditory fields are correlated with behavioral discrimination ability.Journal of neurophysiology · 2013Article
- Article
- Harnessing plasticity to understand learning and treat disease.Trends in neurosciences · 2012Review
- Behavioral and neural discrimination of speech sounds after moderate or intense noise exposure in rats.Ear and hearingArticle
Corrections and comments
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Authors and funding
4 authors.
Funding
Abstract
Cochlear implants provide good speech discrimination ability despite highly limited amount of information they transmit compared with normal cochlea. Noise vocoded speech, simulating cochlear implants in normal hearing listeners, have demonstrated that spectrally and temporally degraded speech contains sufficient cues to provide accurate speech discrimination. We hypothesized that neural activity patterns generated in the primary auditory cortex by spectrally and temporally degraded speech sounds will account for the robust behavioral discrimination of speech. We examined the behavioral discrimination of noise vocoded consonants and vowels by rats and recorded neural activity patterns from rat primary auditory cortex (A1) for the same sounds. We report the first evidence of behavioral discrimination of degraded speech sounds by an animal model. Our results show that rats are able to accurately discriminate both consonant and vowel sounds even after significant spectral and temporal degradation. The degree of degradation that rats can tolerate is comparable to human listeners. We observed that neural discrimination based on spatiotemporal patterns (spike timing) of A1 neurons is highly correlated with behavioral discrimination of consonants and that neural discrimination based on spatial activity patterns (spike count) of A1 neurons is highly correlated with behavioral discrimination of vowels. The results of the current study indicate that speech discrimination is resistant to degradation as long as the degraded sounds generate distinct patterns of neural activity.
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