Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Relative alpha desynchronization and synchronization during speech perception

C M Krause1, B Pörn, A H Lang

  • 1Department of Psychology, Abo Akademi University, Turku, Finland. tkrause@abo.fi

Brain Research. Cognitive Brain Research
|June 1, 1997
PubMed
Summary

Brain activity differs when listening to speech forwards versus backwards. The 10-12 Hz alpha band responds to linguistic content, unlike the 8-10 Hz band.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Alpha and beta desynchronization during consolidation of newly learned words.

NeuroImage·2025
Same author

Time-varying trends from Arctic ozonesonde time series in the years 1994-2022.

Scientific reports·2024
Same author

Spatiotemporal analysis of lake chlorophyll-a with combined in situ and satellite data.

Environmental monitoring and assessment·2023
Same author

Unconventional isoquinoline-based SERMs elicit fulvestrant-like transcriptional programs in ER+ breast cancer cells.

NPJ breast cancer·2022
Same author

Applying FAIR Principles to Plant Phenotypic Data Management in GnpIS.

Plant phenomics (Washington, D.C.)·2020
Same author

Susceptibility-Weighted Imaging Findings in Aspartylglucosaminuria.

AJNR. American journal of neuroradiology·2019

Area of Science:

  • Neuroscience
  • Cognitive Science
  • Electrophysiology

Background:

  • The human brain processes auditory information, including speech, through complex neural mechanisms.
  • Electroencephalography (EEG) is a non-invasive technique used to study brain activity.
  • Alpha frequency bands (8-12 Hz) in EEG are associated with various cognitive states and processing.

Purpose of the Study:

  • To investigate the neural processing of forward and backward presented speech.
  • To examine the differential responses within the 8-10 Hz and 10-12 Hz EEG alpha frequency bands.
  • To determine if specific alpha bands are sensitive to linguistic content.

Main Methods:

  • Utilized electroencephalography (EEG) to record brain activity in 10 right-handed subjects.

Related Experiment Videos

  • Analyzed the desynchronization and synchronization patterns in the 8-10 Hz and 10-12 Hz alpha frequency bands.
  • Subjects listened to a 5-minute text passage presented both in forward and backward order.

    • Main Results:

    • Listening to forward speech elicited alpha desynchronization in both 8-10 Hz and 10-12 Hz bands.
    • Listening to backward speech induced alpha synchronization in the 10-12 Hz band only.
    • The 10-12 Hz band showed a dissociation in response to forward versus backward speech, indicating sensitivity to linguistic content, while the 8-10 Hz band showed a less specific response.

    Conclusions:

    • The upper alpha band (10-12 Hz) is reactive to the presence of linguistic content in auditory speech.
    • The lower alpha band (8-10 Hz) exhibits a more general, unspecific response to auditory stimuli.
    • Alpha frequency bands display distinct functional roles in processing complex auditory information like speech.