NDLI: The Frequency Following Response (FFR) May Reflect Pitch-Bearing Information But is Not a Direct Representation of Pitch

Please wait, while we are loading the content...

Hair Cell Toxicity in Anti-cancer Drugs: Evaluating an Anti-cancer Drug Library for Independent and Synergistic Toxic Effects on Hair Cells Using the Zebrafish Lateral Line

TRPA1-Mediated Accumulation of Aminoglycosides in Mouse Cochlear Outer Hair Cells

Direct Entry of Gadolinium into the Vestibule Following Intratympanic Applications in Guinea Pigs and the Influence of Cochlear Implantation

Genotype–Phenotype Correlation in DFNB8/10 Families with TMPRSS3 Mutations

The Frequency Following Response (FFR) May Reflect Pitch-Bearing Information But is Not a Direct Representation of Pitch

Relative Contributions of Temporal Envelope and Fine Structure Cues to Lexical Tone Recognition in Hearing-Impaired Listeners

Year: 2011, Volume: 12, Issue: 5

Year: 2011, Volume: 12, Issue: 4

Year: 2011, Volume: 12, Issue: 3

Year: 2011, Volume: 12, Issue: 2

Year: 2011, Volume: 12, Issue: 1

Year: 2010, Volume: 11

Year: 2009, Volume: 10

Year: 2008, Volume: 9

Year: 2007, Volume: 8

Year: 2006, Volume: 7

Year: 2006, Volume: 6

Year: 2005, Volume: 6

Year: 2004, Volume: 5

Year: 2003, Volume: 4

Year: 2002, Volume: 3

Year: 2001, Volume: 2

Year: 2000, Volume: 1

The Frequency Following Response (FFR) May Reflect Pitch-Bearing Information But is Not a Direct Representation of Pitch

Content Provider	PubMed Central
Author	Gockel, Hedwig E. Carlyon, Robert P. Mehta, Anahita Plack, Christopher J.
Abstract	The frequency following response (FFR), a scalp-recorded measure of phase-locked brainstem activity, is often assumed to reflect the pitch of sounds as perceived by humans. In two experiments, we investigated the characteristics of the FFR evoked by complex tones. FFR waveforms to alternating-polarity stimuli were averaged for each polarity and added, to enhance envelope, or subtracted, to enhance temporal fine structure information. In experiment 1, frequency-shifted complex tones, with all harmonics shifted by the same amount in Hertz, were presented diotically. Only the autocorrelation functions (ACFs) of the subtraction-FFR waveforms showed a peak at a delay shifted in the direction of the expected pitch shifts. This expected pitch shift was also present in the ACFs of the output of an auditory nerve model. In experiment 2, the components of a harmonic complex with harmonic numbers 2, 3, and 4 were presented either to the same ear (“mono”) or the third harmonic was presented contralaterally to the ear receiving the even harmonics (“dichotic”). In the latter case, a pitch corresponding to the missing fundamental was still perceived. Monaural control conditions presenting only the even harmonics (“2 + 4”) or only the third harmonic (“3”) were also tested. Both the subtraction and the addition waveforms showed that (1) the FFR magnitude spectra for “dichotic” were similar to the sum of the spectra for the two monaural control conditions and lacked peaks at the fundamental frequency and other distortion products visible for “mono” and (2) ACFs for “dichotic” were similar to those for “2 + 4” and dissimilar to those for “mono.” The results indicate that the neural responses reflected in the FFR preserve monaural temporal information that may be important for pitch, but provide no evidence for any additional processing over and above that already present in the auditory periphery, and do not directly represent the pitch of dichotic stimuli.
Related Links	http://dx.doi.org/10.1007/s10162-011-0284-1
Starting Page	767
File Format	PDF
ISSN	14387573
e-ISSN	14387573
Journal	JARO: Journal of the Association for Research in Otolaryngology
Issue Number	6
Volume Number	12
Language	English
Publisher	Springer-Verlag
Publisher Date	2011-12-01
Access Restriction	Open
Rights Holder	Springer-Verlag
Subject Keyword	Research in Higher Education
Content Type	Text
Resource Type	Article
Subject	Otorhinolaryngology Sensory Systems

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

The frequency following response (FFR) may reflect pitch-bearing information but is not a direct representation of pitch.

Attentional Modulation of Envelope-Following Responses at Lower (93–109 Hz) but Not Higher (217–233 Hz) Modulation Rates

Subcortical Plasticity Following Perceptual Learning in a Pitch Discrimination Task

Specificity of the Human Frequency Following Response for Carrier and Modulation Frequency Assessed Using Adaptation

Differential Group Delay of the Frequency Following Response Measured Vertically and Horizontally

Aging Affects Subcortical Pitch Information Encoding Differently in Humans With Different Language Backgrounds

Cochlear Implant Speech Processor Frequency Allocations May Influence Pitch Perception

The vertical horopter is not adaptable, but it may be adaptive

The Auditory Enhancement Effect is Not Reflected in the 80-Hz Auditory Steady-State Response

The Frequency Following Response (FFR) May Reflect Pitch-Bearing Information But is Not a Direct Representation of Pitch

Similar Documents

The frequency following response (FFR) may reflect pitch-bearing information but is not a direct representation of pitch.

Attentional Modulation of Envelope-Following Responses at Lower (93–109 Hz) but Not Higher (217–233 Hz) Modulation Rates

Subcortical Plasticity Following Perceptual Learning in a Pitch Discrimination Task

Specificity of the Human Frequency Following Response for Carrier and Modulation Frequency Assessed Using Adaptation

Differential Group Delay of the Frequency Following Response Measured Vertically and Horizontally

Aging Affects Subcortical Pitch Information Encoding Differently in Humans With Different Language Backgrounds

Cochlear Implant Speech Processor Frequency Allocations May Influence Pitch Perception

The vertical horopter is not adaptable, but it may be adaptive

The Auditory Enhancement Effect is Not Reflected in the 80-Hz Auditory Steady-State Response

The Frequency Following Response (FFR) May Reflect Pitch-Bearing Information But is Not a Direct Representation of Pitch