title: Cortical pitch response components index stimulus onset/offset and dynamic features of pitch contours.
abstract: Voice pitch is an important information-bearing component of language that is subject to experience dependent plasticity at both early cortical and subcortical stages of processing. We have already demonstrated that pitch onset component (Na) of the cortical pitch response (CPR) is sensitive to flat pitch and its salience … CPR responses from Chinese listeners were elicited by three citation forms varying in pitch acceleration and duration. Results showed that the pitch onset component (Na) was invariant to changes in acceleration. In contrast, Na–Pb and Pb–Nb showed a systematic decrease in the interpeak latency and decrease in amplitude with increase in pitch acceleration that followed the time course of pitch change across the three stimuli. A strong correlation with pitch acceleration was observed for these two components only – a putative index of pitch-relevant neural activity associated with the more rapidly-changing portions of the pitch contour. Pc–Nc marks unambiguously the stimulus offset … and their functional roles as related to sensory and cognitive properties of the stimulus. [Corrected]
authors.affiliation: Department of Speech Language Hearing Sciences, Purdue University, West Lafayette, IN, USA. Electronic address: rkrish@purdue.edu.
authors.forename: Ananthanarayan
authors.initials: A
authors.lastname: Krishnan
authors.affiliation: Department of Speech Language Hearing Sciences, Purdue University, West Lafayette, IN, USA. Electronic address: gandour@purdue.edu.
authors.forename: Jackson T
authors.initials: JT
authors.lastname: Gandour
authors.affiliation: Department of Speech Language Hearing Sciences, Purdue University, West Lafayette, IN, USA. Electronic address: sanantha@purdue.edu.
authors.forename: Saradha
authors.initials: S
authors.lastname: Ananthakrishnan
authors.affiliation: School of Mechanical Engineering, Purdue University, West Lafayette, IN, USA. Electronic address: vvijayar@purdue.edu.
authors.forename: Venkatakrishnan
authors.initials: V
authors.lastname: Vijayaraghavan
mesh_terms: D000161:Acoustic Stimulation; D001921:Brain / Q000502:physiology*; D004569:Electroencephalography; D005072:Evoked Potentials, Auditory; D005260:Female; D007839:Functional Laterality; D006801:Humans; D007802:Language; D008297:Male; D010898:Pitch Perception / Q000502:physiology*; D011571:Psychoacoustics; D013018:Sound Spectrography; D013061:Speech Acoustics; D013997:Time Factors; D055815:Young Adult
keywords: Auditory; Cortical pitch response; Hemispheric laterality; Iterated rippled noise; Pitch encoding; Pitch onset response
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