Early Integration Processing between Faces and Vowel Sounds in Human Brain: An MEG Investigation

Itta Nakamura, Yoji Hirano, Naotoshi Ohara, Shogo Hirano, Takefumi Ueno, Rikako Tsuchimoto, Shigenobu Kanba, Toshiaki Onitsuka

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Objective: Unconscious fast integration of face and voice information is a crucial brain function necessary for communicating effectively with others. Here, we investigated for evidence of rapid face-voice integration in the auditory cortex. Methods: Magnetic fields (P50m and N100m) evoked by visual stimuli (V), auditory stimuli (A) and audiovisual stimuli (VA), i.e. by face, vowel and simultaneous vowel-face stimuli, were recorded in 22 healthy subjects. Magnetoencephalographic data from 28 channels around bilateral auditory cortices were analyzed. Results: In both hemispheres, AV - V showed significantly larger P50m amplitudes than A. Additionally, compared with A, the N100m amplitudes and dipole moments of AV - V were significantly smaller in the left hemisphere, but not in the right hemisphere. Conclusions: Differential changes in P50m (bilateral) and N100m (left hemisphere) that occur when V (faces) are associated with A (vowel sounds) indicate that AV (face-voice) integration occurs in early processing, likely enabling us to communicate effectively in our lives.

Original languageEnglish
Pages (from-to)187-195
Number of pages9
JournalNeuropsychobiology
Volume71
Issue number4
DOIs
Publication statusPublished - Sep 1 2015

Fingerprint

Brain
Auditory Cortex
Magnetic Fields
Healthy Volunteers

All Science Journal Classification (ASJC) codes

  • Neuropsychology and Physiological Psychology
  • Psychiatry and Mental health
  • Biological Psychiatry

Cite this

Early Integration Processing between Faces and Vowel Sounds in Human Brain : An MEG Investigation. / Nakamura, Itta; Hirano, Yoji; Ohara, Naotoshi; Hirano, Shogo; Ueno, Takefumi; Tsuchimoto, Rikako; Kanba, Shigenobu; Onitsuka, Toshiaki.

In: Neuropsychobiology, Vol. 71, No. 4, 01.09.2015, p. 187-195.

Research output: Contribution to journalArticle

@article{b898f7d49df340ab8ea0f98820bbed85,
title = "Early Integration Processing between Faces and Vowel Sounds in Human Brain: An MEG Investigation",
abstract = "Objective: Unconscious fast integration of face and voice information is a crucial brain function necessary for communicating effectively with others. Here, we investigated for evidence of rapid face-voice integration in the auditory cortex. Methods: Magnetic fields (P50m and N100m) evoked by visual stimuli (V), auditory stimuli (A) and audiovisual stimuli (VA), i.e. by face, vowel and simultaneous vowel-face stimuli, were recorded in 22 healthy subjects. Magnetoencephalographic data from 28 channels around bilateral auditory cortices were analyzed. Results: In both hemispheres, AV - V showed significantly larger P50m amplitudes than A. Additionally, compared with A, the N100m amplitudes and dipole moments of AV - V were significantly smaller in the left hemisphere, but not in the right hemisphere. Conclusions: Differential changes in P50m (bilateral) and N100m (left hemisphere) that occur when V (faces) are associated with A (vowel sounds) indicate that AV (face-voice) integration occurs in early processing, likely enabling us to communicate effectively in our lives.",
author = "Itta Nakamura and Yoji Hirano and Naotoshi Ohara and Shogo Hirano and Takefumi Ueno and Rikako Tsuchimoto and Shigenobu Kanba and Toshiaki Onitsuka",
year = "2015",
month = "9",
day = "1",
doi = "10.1159/000377680",
language = "English",
volume = "71",
pages = "187--195",
journal = "Neuropsychobiology",
issn = "0302-282X",
publisher = "S. Karger AG",
number = "4",

}

TY - JOUR

T1 - Early Integration Processing between Faces and Vowel Sounds in Human Brain

T2 - An MEG Investigation

AU - Nakamura, Itta

AU - Hirano, Yoji

AU - Ohara, Naotoshi

AU - Hirano, Shogo

AU - Ueno, Takefumi

AU - Tsuchimoto, Rikako

AU - Kanba, Shigenobu

AU - Onitsuka, Toshiaki

PY - 2015/9/1

Y1 - 2015/9/1

N2 - Objective: Unconscious fast integration of face and voice information is a crucial brain function necessary for communicating effectively with others. Here, we investigated for evidence of rapid face-voice integration in the auditory cortex. Methods: Magnetic fields (P50m and N100m) evoked by visual stimuli (V), auditory stimuli (A) and audiovisual stimuli (VA), i.e. by face, vowel and simultaneous vowel-face stimuli, were recorded in 22 healthy subjects. Magnetoencephalographic data from 28 channels around bilateral auditory cortices were analyzed. Results: In both hemispheres, AV - V showed significantly larger P50m amplitudes than A. Additionally, compared with A, the N100m amplitudes and dipole moments of AV - V were significantly smaller in the left hemisphere, but not in the right hemisphere. Conclusions: Differential changes in P50m (bilateral) and N100m (left hemisphere) that occur when V (faces) are associated with A (vowel sounds) indicate that AV (face-voice) integration occurs in early processing, likely enabling us to communicate effectively in our lives.

AB - Objective: Unconscious fast integration of face and voice information is a crucial brain function necessary for communicating effectively with others. Here, we investigated for evidence of rapid face-voice integration in the auditory cortex. Methods: Magnetic fields (P50m and N100m) evoked by visual stimuli (V), auditory stimuli (A) and audiovisual stimuli (VA), i.e. by face, vowel and simultaneous vowel-face stimuli, were recorded in 22 healthy subjects. Magnetoencephalographic data from 28 channels around bilateral auditory cortices were analyzed. Results: In both hemispheres, AV - V showed significantly larger P50m amplitudes than A. Additionally, compared with A, the N100m amplitudes and dipole moments of AV - V were significantly smaller in the left hemisphere, but not in the right hemisphere. Conclusions: Differential changes in P50m (bilateral) and N100m (left hemisphere) that occur when V (faces) are associated with A (vowel sounds) indicate that AV (face-voice) integration occurs in early processing, likely enabling us to communicate effectively in our lives.

UR - http://www.scopus.com/inward/record.url?scp=84930517529&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84930517529&partnerID=8YFLogxK

U2 - 10.1159/000377680

DO - 10.1159/000377680

M3 - Article

C2 - 26044647

AN - SCOPUS:84930517529

VL - 71

SP - 187

EP - 195

JO - Neuropsychobiology

JF - Neuropsychobiology

SN - 0302-282X

IS - 4

ER -