Decreased right temporal activation and increased interhemispheric connectivity in response to speech in preterm infants at term-equivalent age
Preterm infants are at increased risk of language-related problems later in life; however, few studies have examined the effects of preterm birth on cerebral responses to speech at very early developmental stages. This study examined cerebral activation and functional connectivity in response to inf...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2013-03-01
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| Series: | Frontiers in Psychology |
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| Online Access: | http://journal.frontiersin.org/Journal/10.3389/fpsyg.2013.00094/full |
| _version_ | 1819298787664855040 |
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| author | Nozomi eNaoi Nozomi eNaoi Yutaka eFuchino Yutaka eFuchino Minoru eShibata Minoru eShibata Fusako eNiwa Fusako eNiwa Masahiko eKawai Yukuo eKonishi Kazuo eOkanoya Kazuo eOkanoya Masako eMyowa-Yamakoshi Masako eMyowa-Yamakoshi |
| author_facet | Nozomi eNaoi Nozomi eNaoi Yutaka eFuchino Yutaka eFuchino Minoru eShibata Minoru eShibata Fusako eNiwa Fusako eNiwa Masahiko eKawai Yukuo eKonishi Kazuo eOkanoya Kazuo eOkanoya Masako eMyowa-Yamakoshi Masako eMyowa-Yamakoshi |
| author_sort | Nozomi eNaoi |
| collection | DOAJ |
| description | Preterm infants are at increased risk of language-related problems later in life; however, few studies have examined the effects of preterm birth on cerebral responses to speech at very early developmental stages. This study examined cerebral activation and functional connectivity in response to infant-directed speech (IDS) and adult-directed speech (ADS) in full-term neonates and preterm infants at term-equivalent age using 94-channel near-infrared spectroscopy (NIRS). The results showed that compared with ADS, IDS increased activity in larger brain areas such as the bilateral frontotemporal, temporal, and temporoparietal regions, both in full-term and preterm infants. Preterm infants exhibited decreased activity in response to speech stimuli in the right temporal region compared with full-term infants, although the significance was low. Moreover, preterm infants exhibited increased interhemispheric connectivity compared with full-term controls, especially in the temporal and temporoparietal regions. These differences suggest that preterm infants may follow different developmental trajectories from those born at term owing to differences in intrauterine and extrauterine development. |
| first_indexed | 2024-12-24T05:35:27Z |
| format | Article |
| id | doaj.art-fa8045c18d144aae94b965dae6923397 |
| institution | Directory Open Access Journal |
| issn | 1664-1078 |
| language | English |
| last_indexed | 2024-12-24T05:35:27Z |
| publishDate | 2013-03-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Psychology |
| spelling | doaj.art-fa8045c18d144aae94b965dae69233972022-12-21T17:13:02ZengFrontiers Media S.A.Frontiers in Psychology1664-10782013-03-01410.3389/fpsyg.2013.0009438754Decreased right temporal activation and increased interhemispheric connectivity in response to speech in preterm infants at term-equivalent ageNozomi eNaoi0Nozomi eNaoi1Yutaka eFuchino2Yutaka eFuchino3Minoru eShibata4Minoru eShibata5Fusako eNiwa6Fusako eNiwa7Masahiko eKawai8Yukuo eKonishi9Kazuo eOkanoya10Kazuo eOkanoya11Masako eMyowa-Yamakoshi12Masako eMyowa-Yamakoshi13Japan Agency of Science and TechnologyKyoto UniversityJapan Agency of Science and TechnologyKyoto UniversityJapan Agency of Science and TechnologyKyoto University HospitalJapan Agency of Science and TechnologyKyoto University HospitalKyoto University HospitalDoshisha UniversityJapan Agency of Science and TechnologyThe University of TokyoJapan Agency of Science and TechnologyKyoto UniversityPreterm infants are at increased risk of language-related problems later in life; however, few studies have examined the effects of preterm birth on cerebral responses to speech at very early developmental stages. This study examined cerebral activation and functional connectivity in response to infant-directed speech (IDS) and adult-directed speech (ADS) in full-term neonates and preterm infants at term-equivalent age using 94-channel near-infrared spectroscopy (NIRS). The results showed that compared with ADS, IDS increased activity in larger brain areas such as the bilateral frontotemporal, temporal, and temporoparietal regions, both in full-term and preterm infants. Preterm infants exhibited decreased activity in response to speech stimuli in the right temporal region compared with full-term infants, although the significance was low. Moreover, preterm infants exhibited increased interhemispheric connectivity compared with full-term controls, especially in the temporal and temporoparietal regions. These differences suggest that preterm infants may follow different developmental trajectories from those born at term owing to differences in intrauterine and extrauterine development.http://journal.frontiersin.org/Journal/10.3389/fpsyg.2013.00094/fullNIRSnear-infrared spectroscopypreterm infantsInfant-directed speechAdult-directed speechFull-term neonates |
| spellingShingle | Nozomi eNaoi Nozomi eNaoi Yutaka eFuchino Yutaka eFuchino Minoru eShibata Minoru eShibata Fusako eNiwa Fusako eNiwa Masahiko eKawai Yukuo eKonishi Kazuo eOkanoya Kazuo eOkanoya Masako eMyowa-Yamakoshi Masako eMyowa-Yamakoshi Decreased right temporal activation and increased interhemispheric connectivity in response to speech in preterm infants at term-equivalent age Frontiers in Psychology NIRS near-infrared spectroscopy preterm infants Infant-directed speech Adult-directed speech Full-term neonates |
| title | Decreased right temporal activation and increased interhemispheric connectivity in response to speech in preterm infants at term-equivalent age |
| title_full | Decreased right temporal activation and increased interhemispheric connectivity in response to speech in preterm infants at term-equivalent age |
| title_fullStr | Decreased right temporal activation and increased interhemispheric connectivity in response to speech in preterm infants at term-equivalent age |
| title_full_unstemmed | Decreased right temporal activation and increased interhemispheric connectivity in response to speech in preterm infants at term-equivalent age |
| title_short | Decreased right temporal activation and increased interhemispheric connectivity in response to speech in preterm infants at term-equivalent age |
| title_sort | decreased right temporal activation and increased interhemispheric connectivity in response to speech in preterm infants at term equivalent age |
| topic | NIRS near-infrared spectroscopy preterm infants Infant-directed speech Adult-directed speech Full-term neonates |
| url | http://journal.frontiersin.org/Journal/10.3389/fpsyg.2013.00094/full |
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