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Tone language experience-dependent advantage in pitch representation in brainstem and auditory cortex is maintained under reverberation
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In: Hear Res (2019)
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Language experience-dependent advantage in pitch representation in the auditory cortex is limited to favorable signal-to-noise ratios
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Changes in pitch height elicit both language universal and language dependent changes in neural representation of pitch in the brainstem and auditory cortex
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Language-dependent changes in pitch-relevant neural activity in the auditory cortex reflect differential weighting of temporal attributes of pitch contours
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Pitch processing of dynamic lexical tones in the auditory cortex is influenced by sensory and extrasensory processes
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Language experience enhances early cortical pitch-dependent responses
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Cortical pitch response components show differential sensitivity to native and nonnative pitch contours
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LANGUAGE EXPERIENCE SHAPES PROCESSING OF PITCH RELEVANT INFORMATION IN THE HUMAN BRAINSTEM AND AUDITORY CORTEX: ELECTROPHYSIOLOGICAL EVIDENCE
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A functional deficit in the sensorimotor interface component as revealed by oral reading in Thai conduction aphasia
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Experience-dependent plasticity in pitch encoding: from brainstem to auditory cortex
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Neural correlates of musical and linguistic pitch as revealed in the auditory brainstem
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In: Theses and Dissertations Available from ProQuest (2011)
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Abstract:
Despite notable diversities, all cultures of the world share two unique human faculties: the ability to produce and appreciate aspects of both music and language. To date, studies examining the cognitive neuroscience of these two domains have been restricted primarily to cortical processing and have ignored the potential contribution of subcortical structures to the encoding of musically- and linguistically relevant sound. This dissertation attempts to illuminate these issues by examining three key topics: (1) the neurobiological basis of music; (2) the effects of musical training on subcortical neurophysiological processing; (3) the putative connections between music and language in the brain. Such topics are explored in depth by examining a fundamental auditory attribute common to both the domains of music and language, namely, pitch. Important properties of tonal music (e.g., hierarchical pitch structure, musical key) are appreciated in the absence of rigorous musical experience by both humans and non-humans alike. But is there a neurobiological basis for the architecture of music? In the first part of this dissertation, evidence from evoked potentials, computational modeling, and psychoacoustics is presented which supports the notion that the organizational principles governing musical pitch are rooted in innate, preattentive auditory processing. The question then emerges how long-term experience alters the neural representations for complex acoustic signals (e.g., speech and music). Subcortical brain potentials are compared between musicians and non-musician listeners to examine the effects of musical experience on the neural transcription of music and speech. It is shown that spectro-temporal aspects of these complex signals are enhanced in musically trained individuals thus providing a neurobiological correlate for musicians' perceptual benefits observed in many psychoacoustic tasks. In addition, results indicate that the positive effects of musical training extend beyond the domain of music, tuning brain-behavior mechanisms implicated in language-specific listening. Lastly, connections between music and language processing are examined in an attempt to reveal not only how these two human universals interact but whether or not there are commonalties in their neural representations. Comparisons in perceptual and neurophysiological processing are made between tone language speakers (experienced with linguistic uses of pitch) and musicians (experienced with musical uses of pitch). Results show that pitch encoding enhancements gained from one domain of expertise may transfer to another as long as the latter exhibits acoustic features overlapping those with which an individual has been exposed to through long-term experience or training. Results of this work ultimately suggest that music- and language-dependent operations begin well before the auditory signal reaches cerebral cortex, and moreover, that the auditory pathway is shaped dependent on one's specific auditory experience. Contrary to conventional thought, this work demonstrates that perceptually salient features necessary for high fidelity music and speech perception begin to emerge at preattentive stages of audition.
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Keyword:
Audiology|Neurosciences|Music
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URL: https://docs.lib.purdue.edu/dissertations/AAI3475478
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Musicians and tone-language speakers share enhanced brainstem encoding but not perceptual benefits for musical pitch
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Musicians demonstrate experience-dependent brainstem enhancement of musical scale features within continuously gliding pitch
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Functional ear (a)symmetry in brainstem neural activity relevant to encoding of voice pitch: A precursor for hemispheric specialization?
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Linguistic status of timbre influences pitch encoding in the brainstem
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Neural representation of pitch salience in the human brainstem revealed by psychophysical and electrophysiological indices
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Language-dependent pitch encoding advantage in the brainstem is not limited to acceleration rates that occur in natural speech
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Hemispheric asymmetries in phonological processing of tones vs. segmental units
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The effects of tone language experience on pitch processing in the brainstem
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Brainstem pitch representation in native speakers of Mandarin is less susceptible to degradation of stimulus temporal regularity
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