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Frequency discrimination at different frequency levels as indexed by electrophysiological and behavioral measures.
Brain Res Cogn Brain Res. 2004 Jun; 20(1):26-36.BR

Abstract

The present study systematically compared the neural and behavioral accuracy of discriminating a frequency change ("deviant") in a repetitive tone ("standard") across a frequency range of 250-4000 Hz. The sound structure (pure sinusoidal vs. harmonically rich tones) and the magnitude of frequency change (2.5%, 5%, 10%, 20%) were also varied. The accuracy of neural frequency-change detector was determined by comparing the auditory event-related potentials (ERP) elicited by deviant and standard stimuli in the absence of attention. In a separate behavioral task, subjects were to indicate when they noticed a frequency change. The ranges of the across-subject means of ERP parameters across the conditions were: the mismatch negativity (MMN) amplitude -0.9 to -4.9 microV, latency 125-218 ms, the P3a amplitude 0.3-3.2 microV, latency 239-304 ms. The ERP latency was shortest for the standard-stimulus frequency from 1000 to 2000 Hz suggesting that automatic frequency discrimination was the most accurate in that range. The ERP latencies and amplitudes correlated with the hit rate (HR) and reaction time (RT), with highest correlation found between the MMN amplitude and the HR (r=0.8). The harmonical tones elicited MMN and P3a with shorter latencies and larger amplitudes, than did pure sinusoidal tones in all frequency bands. The results may have implication to pitch-perception theories.

Authors+Show Affiliations

Department of Psychology, University of Helsinki, Finland.No affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

15130586

Citation

Novitski, Nikolai, et al. "Frequency Discrimination at Different Frequency Levels as Indexed By Electrophysiological and Behavioral Measures." Brain Research. Cognitive Brain Research, vol. 20, no. 1, 2004, pp. 26-36.
Novitski N, Tervaniemi M, Huotilainen M, et al. Frequency discrimination at different frequency levels as indexed by electrophysiological and behavioral measures. Brain Res Cogn Brain Res. 2004;20(1):26-36.
Novitski, N., Tervaniemi, M., Huotilainen, M., & Näätänen, R. (2004). Frequency discrimination at different frequency levels as indexed by electrophysiological and behavioral measures. Brain Research. Cognitive Brain Research, 20(1), 26-36.
Novitski N, et al. Frequency Discrimination at Different Frequency Levels as Indexed By Electrophysiological and Behavioral Measures. Brain Res Cogn Brain Res. 2004;20(1):26-36. PubMed PMID: 15130586.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Frequency discrimination at different frequency levels as indexed by electrophysiological and behavioral measures. AU - Novitski,Nikolai, AU - Tervaniemi,Mari, AU - Huotilainen,Minna, AU - Näätänen,Risto, PY - 2003/12/18/accepted PY - 2004/5/8/pubmed PY - 2004/7/28/medline PY - 2004/5/8/entrez SP - 26 EP - 36 JF - Brain research. Cognitive brain research JO - Brain Res Cogn Brain Res VL - 20 IS - 1 N2 - The present study systematically compared the neural and behavioral accuracy of discriminating a frequency change ("deviant") in a repetitive tone ("standard") across a frequency range of 250-4000 Hz. The sound structure (pure sinusoidal vs. harmonically rich tones) and the magnitude of frequency change (2.5%, 5%, 10%, 20%) were also varied. The accuracy of neural frequency-change detector was determined by comparing the auditory event-related potentials (ERP) elicited by deviant and standard stimuli in the absence of attention. In a separate behavioral task, subjects were to indicate when they noticed a frequency change. The ranges of the across-subject means of ERP parameters across the conditions were: the mismatch negativity (MMN) amplitude -0.9 to -4.9 microV, latency 125-218 ms, the P3a amplitude 0.3-3.2 microV, latency 239-304 ms. The ERP latency was shortest for the standard-stimulus frequency from 1000 to 2000 Hz suggesting that automatic frequency discrimination was the most accurate in that range. The ERP latencies and amplitudes correlated with the hit rate (HR) and reaction time (RT), with highest correlation found between the MMN amplitude and the HR (r=0.8). The harmonical tones elicited MMN and P3a with shorter latencies and larger amplitudes, than did pure sinusoidal tones in all frequency bands. The results may have implication to pitch-perception theories. SN - 0926-6410 UR - https://www.unboundmedicine.com/medline/citation/15130586/Frequency_discrimination_at_different_frequency_levels_as_indexed_by_electrophysiological_and_behavioral_measures_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0926641004000321 DB - PRIME DP - Unbound Medicine ER -