Functional hemispheric specialization in processing phonemic and prosodic auditory changes in neonates

Takeshi Arimitsu, Mariko Uchida-Ota, Tatsuhiko Yagihashi, Shozo Kojima, Shigeru Watanabe, Isamu Hokuto, Kazushige Ikeda, Takao Takahashi, Yasuyo Minagawa

Research output: Contribution to journalArticle

29 Citations (Scopus)

Abstract

This study focuses on the early cerebral base of speech perception by examining functional lateralization in neonates for processing segmental and suprasegmental features of speech. For this purpose, auditory evoked responses of full-term neonates to phonemic and prosodic contrasts were measured in their temporal area and part of the frontal and parietal areas using near-infrared spectroscopy (NIRS). Stimuli used here were phonemic contrast /itta/ and /itte/ and prosodic contrast of declarative and interrogative forms /itta/ and /itta?/. The results showed clear hemodynamic responses to both phonemic and prosodic changes in the temporal areas and part of the parietal and frontal regions. In particular, significantly higher hemoglobin (Hb) changes were observed for the prosodic change in the right temporal area than for that in the left one, whereas Hb responses to the vowel change were similarly elicited in bilateral temporal areas. However, Hb responses to the vowel contrast were asymmetrical in the parietal area (around supra marginal gyrus), with stronger activation in the left. These results suggest a specialized function of the right hemisphere in prosody processing, which is already present in neonates. The parietal activities during phonemic processing were discussed in relation to verbal-auditory short-term memory. On the basis of this study and previous studies on older infants, the developmental process of functional lateralization from birth to 2 years of age for vowel and prosody was summarized.

Original languageEnglish
Article numberArticle 202
JournalFrontiers in Psychology
Volume2
Issue numberSEP
DOIs
Publication statusPublished - 2011

Fingerprint

Cerebral Dominance
Newborn Infant
Hemoglobins
Auditory Evoked Potentials
Parietal Lobe
Speech Perception
Near-Infrared Spectroscopy
Prefrontal Cortex
Short-Term Memory
Hemodynamics
Parturition

Keywords

  • Auditory area
  • Functional lateralization
  • Neonates
  • NIRS
  • Phoneme
  • Prosody

ASJC Scopus subject areas

  • Psychology(all)

Cite this

Functional hemispheric specialization in processing phonemic and prosodic auditory changes in neonates. / Arimitsu, Takeshi; Uchida-Ota, Mariko; Yagihashi, Tatsuhiko; Kojima, Shozo; Watanabe, Shigeru; Hokuto, Isamu; Ikeda, Kazushige; Takahashi, Takao; Minagawa, Yasuyo.

In: Frontiers in Psychology, Vol. 2, No. SEP, Article 202, 2011.

Research output: Contribution to journalArticle

Arimitsu, Takeshi ; Uchida-Ota, Mariko ; Yagihashi, Tatsuhiko ; Kojima, Shozo ; Watanabe, Shigeru ; Hokuto, Isamu ; Ikeda, Kazushige ; Takahashi, Takao ; Minagawa, Yasuyo. / Functional hemispheric specialization in processing phonemic and prosodic auditory changes in neonates. In: Frontiers in Psychology. 2011 ; Vol. 2, No. SEP.
@article{6a4c9d5c511943e38a89582f96044616,
title = "Functional hemispheric specialization in processing phonemic and prosodic auditory changes in neonates",
abstract = "This study focuses on the early cerebral base of speech perception by examining functional lateralization in neonates for processing segmental and suprasegmental features of speech. For this purpose, auditory evoked responses of full-term neonates to phonemic and prosodic contrasts were measured in their temporal area and part of the frontal and parietal areas using near-infrared spectroscopy (NIRS). Stimuli used here were phonemic contrast /itta/ and /itte/ and prosodic contrast of declarative and interrogative forms /itta/ and /itta?/. The results showed clear hemodynamic responses to both phonemic and prosodic changes in the temporal areas and part of the parietal and frontal regions. In particular, significantly higher hemoglobin (Hb) changes were observed for the prosodic change in the right temporal area than for that in the left one, whereas Hb responses to the vowel change were similarly elicited in bilateral temporal areas. However, Hb responses to the vowel contrast were asymmetrical in the parietal area (around supra marginal gyrus), with stronger activation in the left. These results suggest a specialized function of the right hemisphere in prosody processing, which is already present in neonates. The parietal activities during phonemic processing were discussed in relation to verbal-auditory short-term memory. On the basis of this study and previous studies on older infants, the developmental process of functional lateralization from birth to 2 years of age for vowel and prosody was summarized.",
keywords = "Auditory area, Functional lateralization, Neonates, NIRS, Phoneme, Prosody",
author = "Takeshi Arimitsu and Mariko Uchida-Ota and Tatsuhiko Yagihashi and Shozo Kojima and Shigeru Watanabe and Isamu Hokuto and Kazushige Ikeda and Takao Takahashi and Yasuyo Minagawa",
year = "2011",
doi = "10.3389/fpsyg.2011.00202",
language = "English",
volume = "2",
journal = "Frontiers in Psychology",
issn = "1664-1078",
publisher = "Frontiers Research Foundation",
number = "SEP",

}

TY - JOUR

T1 - Functional hemispheric specialization in processing phonemic and prosodic auditory changes in neonates

AU - Arimitsu, Takeshi

AU - Uchida-Ota, Mariko

AU - Yagihashi, Tatsuhiko

AU - Kojima, Shozo

AU - Watanabe, Shigeru

AU - Hokuto, Isamu

AU - Ikeda, Kazushige

AU - Takahashi, Takao

AU - Minagawa, Yasuyo

PY - 2011

Y1 - 2011

N2 - This study focuses on the early cerebral base of speech perception by examining functional lateralization in neonates for processing segmental and suprasegmental features of speech. For this purpose, auditory evoked responses of full-term neonates to phonemic and prosodic contrasts were measured in their temporal area and part of the frontal and parietal areas using near-infrared spectroscopy (NIRS). Stimuli used here were phonemic contrast /itta/ and /itte/ and prosodic contrast of declarative and interrogative forms /itta/ and /itta?/. The results showed clear hemodynamic responses to both phonemic and prosodic changes in the temporal areas and part of the parietal and frontal regions. In particular, significantly higher hemoglobin (Hb) changes were observed for the prosodic change in the right temporal area than for that in the left one, whereas Hb responses to the vowel change were similarly elicited in bilateral temporal areas. However, Hb responses to the vowel contrast were asymmetrical in the parietal area (around supra marginal gyrus), with stronger activation in the left. These results suggest a specialized function of the right hemisphere in prosody processing, which is already present in neonates. The parietal activities during phonemic processing were discussed in relation to verbal-auditory short-term memory. On the basis of this study and previous studies on older infants, the developmental process of functional lateralization from birth to 2 years of age for vowel and prosody was summarized.

AB - This study focuses on the early cerebral base of speech perception by examining functional lateralization in neonates for processing segmental and suprasegmental features of speech. For this purpose, auditory evoked responses of full-term neonates to phonemic and prosodic contrasts were measured in their temporal area and part of the frontal and parietal areas using near-infrared spectroscopy (NIRS). Stimuli used here were phonemic contrast /itta/ and /itte/ and prosodic contrast of declarative and interrogative forms /itta/ and /itta?/. The results showed clear hemodynamic responses to both phonemic and prosodic changes in the temporal areas and part of the parietal and frontal regions. In particular, significantly higher hemoglobin (Hb) changes were observed for the prosodic change in the right temporal area than for that in the left one, whereas Hb responses to the vowel change were similarly elicited in bilateral temporal areas. However, Hb responses to the vowel contrast were asymmetrical in the parietal area (around supra marginal gyrus), with stronger activation in the left. These results suggest a specialized function of the right hemisphere in prosody processing, which is already present in neonates. The parietal activities during phonemic processing were discussed in relation to verbal-auditory short-term memory. On the basis of this study and previous studies on older infants, the developmental process of functional lateralization from birth to 2 years of age for vowel and prosody was summarized.

KW - Auditory area

KW - Functional lateralization

KW - Neonates

KW - NIRS

KW - Phoneme

KW - Prosody

UR - http://www.scopus.com/inward/record.url?scp=84866445836&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84866445836&partnerID=8YFLogxK

U2 - 10.3389/fpsyg.2011.00202

DO - 10.3389/fpsyg.2011.00202

M3 - Article

VL - 2

JO - Frontiers in Psychology

JF - Frontiers in Psychology

SN - 1664-1078

IS - SEP

M1 - Article 202

ER -