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  Extensive stimulus repetition leads older adults to show delayed functional magnetic resonance imaging adaptation

Miyakoshi, M., Chen, S.-H.-A., Matsuo, K., Wu, C.-Y., Suzuki, A., & Nakai, T. (2012). Extensive stimulus repetition leads older adults to show delayed functional magnetic resonance imaging adaptation. Brain Imaging and Behavior, 6(3), 357-365. doi:10.1007/s11682-012-9148-5.

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Datensatz-Permalink: https://hdl.handle.net/11858/00-001M-0000-0014-BABB-0 Versions-Permalink: https://hdl.handle.net/21.11116/0000-0003-CD71-7
Genre: Zeitschriftenartikel

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 Urheber:
Miyakoshi, Makoto1, Autor
Chen, Shen-Hsing Annabel2, Autor
Matsuo, Kayako3, Autor
Wu, Chiao-Yi2, Autor           
Suzuki, Atsunobu4, Autor
Nakai, Toshiharu1, Autor
Affiliations:
1Neuroimaging and Informatics Lab, Department of Gerontechnology, National Center for Geriatrics and Gerontology, Ohbu, Aichi, Japan, ou_persistent22              
2Division of Psychology, School of Humanities and Social Sciences, Nanyang Technological University, Singapore, ou_persistent22              
3Center for Optoelectronic Biomedicine, National Taiwan University College of Medicine, Taipei, Taiwan, ou_persistent22              
4Department of Social and Human Environment, Graduate School of Environmental Studies, Nagoya University, Nagoya, Aichi, Japan, ou_persistent22              

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Schlagwörter: Aging; fMRI; Adaptation; Repetition suppression; Scene recognition; Parahippocampus
 Zusammenfassung: We investigated whether extensive repetition can diminish age-related differences between younger and older adults in functional magnetic resonance adaptation (fMR-A). Datasets were obtained from 26 younger and 24 older healthy adults presented with two scenes that repeated 20 times amongst other novel scenes during fMRI scanning. The average cortical responses to the first eight (Repetitions 1-7) and the last eight (Repetitions 12-19) presentations out of 20 were compared within each group. Younger adults showed similar levels of fMR-A in both repetition sets. Conversely, older adults did not show reliable fMR-A in Repetitions 1-7, but they did in Repetitions 12-19; subtracting the latter from the former revealed a significant effect within left inferior occipital, left lingual, and the posterior part of fusiform gyrus. We concluded that cortical responsiveness in older adults are compromised, but extensive repetition can lead older adults to show a delayed but closer level of fMR-A compared to younger adults.

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Sprache(n): eng - English
 Datum: 2012-01-252012-09-01
 Publikationsstatus: Erschienen
 Seiten: -
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: Expertenbegutachtung
 Identifikatoren: DOI: 10.1007/s11682-012-9148-5
PMID: 22274135
 Art des Abschluß: -

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Titel: Brain Imaging and Behavior
  Kurztitel : Brain Imaging Behav
Genre der Quelle: Zeitschrift
 Urheber:
Affiliations:
Ort, Verlag, Ausgabe: Secaucus, NJ : Springer
Seiten: - Band / Heft: 6 (3) Artikelnummer: - Start- / Endseite: 357 - 365 Identifikator: Anderer: 1931-7557
CoNE: https://pure.mpg.de/cone/journals/resource/1931-7557