| A comparison of auditory evoked potentials to acoustic beats and to binaural beats. | |
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MedLine Citation:
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PMID: 20123120 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The purpose of this study was to compare cortical brain responses evoked by amplitude modulated acoustic beats of 3 and 6 Hz in tones of 250 and 1000 Hz with those evoked by their binaural beats counterparts in unmodulated tones to indicate whether the cortical processes involved differ. Event-related potentials (ERPs) were recorded to 3- and 6-Hz acoustic and binaural beats in 2000 ms duration 250 and 1000 Hz tones presented with approximately 1 s intervals. Latency, amplitude and source current density estimates of ERP components to beats-evoked oscillations were determined and compared across beat types, beat frequencies and base (carrier) frequencies. All stimuli evoked tone-onset components followed by oscillations corresponding to the beat frequency, and a subsequent tone-offset complex. Beats-evoked oscillations were higher in amplitude in response to acoustic than to binaural beats, to 250 than to 1000 Hz base frequency and to 3 Hz than to 6 Hz beat frequency. Sources of the beats-evoked oscillations across all stimulus conditions located mostly to left temporal lobe areas. Differences between estimated sources of potentials to acoustic and binaural beats were not significant. The perceptions of binaural beats involve cortical activity that is not different than acoustic beats in distribution and in the effects of beat- and base frequency, indicating similar cortical processing. |
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Authors:
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Hillel Pratt; Arnold Starr; Henry J Michalewski; Andrew Dimitrijevic; Naomi Bleich; Nomi Mittelman |
Publication Detail:
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Type: Comparative Study; Journal Article; Research Support, N.I.H., Extramural; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S. Date: 2010-02-01 |
Journal Detail:
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Title: Hearing research Volume: 262 ISSN: 1878-5891 ISO Abbreviation: Hear. Res. Publication Date: 2010 Apr |
Date Detail:
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Created Date: 2010-03-15 Completed Date: 2010-06-03 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 7900445 Medline TA: Hear Res Country: Netherlands |
Other Details:
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Languages: eng Pagination: 34-44 Citation Subset: IM |
Copyright Information:
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Copyright 2010 Elsevier B.V. All rights reserved. |
Affiliation:
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Evoked Potentials Laboratory, Behavioral Biology, Technion - Israel Institute of Technology, Haifa 32000, Israel. hillel@tx.technion.ac.il |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Acoustic Stimulation
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classification* Acoustics* Adolescent Adult Auditory Cortex / physiology* Evoked Potentials / physiology Evoked Potentials, Auditory / physiology* Female Hearing / physiology Humans Male Young Adult |
| Grant Support | |
ID/Acronym/Agency:
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DC 02618/DC/NIDCD NIH HHS |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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