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

Spatiotemporal source analysis of vocalization-associated magnetic fields.

A Gunji1, R Kakigi, M Hoshiyama

  • 1Department of Integrative Physiology, National Institute for Physiological Sciences, Myodaiji, Okazaki, Japan. agunji@nips.ac.jp

Brain Research. Cognitive Brain Research
|March 24, 2000
PubMed
Summary

This study investigated vocalization-related cortical fields (VRCF) using magnetoencephalography. Findings reveal bilateral motor cortex activation before vocalization and auditory cortex response to self-produced sounds.

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

Effect of environmental music on autonomic function in infants in intensive and growing care units.

Journal of neonatal-perinatal medicine·2019
Same author

Subjective Evaluation of Denture Adhesives: A Multicenter Randomized Controlled Trial.

JDR clinical and translational research·2019
Same author

Warm-, hot- and pain-related neural activities depending on baseline skin temperatures.

European journal of pain (London, England)·2018
Same author

Heat stress-induced phosphorylation of FoxO3a signalling in rat skeletal muscle.

Acta physiologica (Oxford, England)·2016
Same author

Effects of walking combined with restricted leg blood flow on mTOR and MAPK signalling in young men.

Acta physiologica (Oxford, England)·2014
Same author

The social support system of the Japanese elderly.

Journal of cross-cultural gerontology·2014

Area of Science:

  • Neuroscience
  • Auditory Neuroscience
  • Motor Control

Background:

  • Understanding the neural mechanisms of vocalization is crucial for speech production and perception.
  • The precise timing and localization of brain activity related to self-produced vocalizations remain incompletely understood.

Purpose of the Study:

  • To investigate the spatiotemporal dynamics of vocalization-related cortical fields (VRCF) during vowel production.
  • To elucidate the generating mechanisms of VRCF using advanced source analysis techniques.

Main Methods:

  • Magnetoencephalography (MEG) was employed to record brain activity in eight healthy subjects during vowel vocalization.
  • A multiple-source model, Brain Electric Source Analysis (BESA), was utilized to identify and localize neural sources.

Related Experiment Videos

Main Results:

  • Six distinct neural sources were identified, with bilateral laryngeal and truncal motor areas activated preceding vocalization onset.
  • Bilateral auditory cortices showed activation following vocalization onset, likely representing the response to self-generated sound.
  • Temporal overlap between motor and auditory activities was observed, highlighting the utility of BESA in source separation.

Conclusions:

  • Bilateral motor cortices (laryngeal and truncal) are activated just before vocalization.
  • Auditory cortical activity following vocalization reflects the central auditory system's response to one's own voice.
  • The Brain Electric Source Analysis (BESA) method effectively disentangles overlapping motor and auditory neural activities during vocalization.