Cargando…

Anticipatory neural dynamics of spatial-temporal orienting of attention in younger and older adults

Spatial and temporal expectations act synergistically to facilitate visual perception. In the current study, we sought to investigate the anticipatory oscillatory markers of combined spatial-temporal orienting and to test whether these decline with ageing. We examined anticipatory neural dynamics as...

Descripción completa

Detalles Bibliográficos
Autores principales: Heideman, Simone G., Rohenkohl, Gustavo, Chauvin, Joshua J., Palmer, Clare E., van Ede, Freek, Nobre, Anna C.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Academic Press 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6057272/
https://www.ncbi.nlm.nih.gov/pubmed/29733953
http://dx.doi.org/10.1016/j.neuroimage.2018.05.002
_version_ 1783341496155504640
author Heideman, Simone G.
Rohenkohl, Gustavo
Chauvin, Joshua J.
Palmer, Clare E.
van Ede, Freek
Nobre, Anna C.
author_facet Heideman, Simone G.
Rohenkohl, Gustavo
Chauvin, Joshua J.
Palmer, Clare E.
van Ede, Freek
Nobre, Anna C.
author_sort Heideman, Simone G.
collection PubMed
description Spatial and temporal expectations act synergistically to facilitate visual perception. In the current study, we sought to investigate the anticipatory oscillatory markers of combined spatial-temporal orienting and to test whether these decline with ageing. We examined anticipatory neural dynamics associated with joint spatial-temporal orienting of attention using magnetoencephalography (MEG) in both younger and older adults. Participants performed a cued covert spatial-temporal orienting task requiring the discrimination of a visual target. Cues indicated both where and when targets would appear. In both age groups, valid spatial-temporal cues significantly enhanced perceptual sensitivity and reduced reaction times. In the MEG data, the main effect of spatial orienting was the lateralised anticipatory modulation of posterior alpha and beta oscillations. In contrast to previous reports, this modulation was not attenuated in older adults; instead it was even more pronounced. The main effect of temporal orienting was a bilateral suppression of posterior alpha and beta oscillations. This effect was restricted to younger adults. Our results also revealed a striking interaction between anticipatory spatial and temporal orienting in the gamma-band (60–75 Hz). When considering both age groups separately, this effect was only clearly evident and only survived statistical evaluation in the older adults. Together, these observations provide several new insights into the neural dynamics supporting separate as well as combined effects of spatial and temporal orienting of attention, and suggest that different neural dynamics associated with attentional orienting appear differentially sensitive to ageing.
format Online
Article
Text
id pubmed-6057272
institution National Center for Biotechnology Information
language English
publishDate 2018
publisher Academic Press
record_format MEDLINE/PubMed
spelling pubmed-60572722018-09-01 Anticipatory neural dynamics of spatial-temporal orienting of attention in younger and older adults Heideman, Simone G. Rohenkohl, Gustavo Chauvin, Joshua J. Palmer, Clare E. van Ede, Freek Nobre, Anna C. Neuroimage Article Spatial and temporal expectations act synergistically to facilitate visual perception. In the current study, we sought to investigate the anticipatory oscillatory markers of combined spatial-temporal orienting and to test whether these decline with ageing. We examined anticipatory neural dynamics associated with joint spatial-temporal orienting of attention using magnetoencephalography (MEG) in both younger and older adults. Participants performed a cued covert spatial-temporal orienting task requiring the discrimination of a visual target. Cues indicated both where and when targets would appear. In both age groups, valid spatial-temporal cues significantly enhanced perceptual sensitivity and reduced reaction times. In the MEG data, the main effect of spatial orienting was the lateralised anticipatory modulation of posterior alpha and beta oscillations. In contrast to previous reports, this modulation was not attenuated in older adults; instead it was even more pronounced. The main effect of temporal orienting was a bilateral suppression of posterior alpha and beta oscillations. This effect was restricted to younger adults. Our results also revealed a striking interaction between anticipatory spatial and temporal orienting in the gamma-band (60–75 Hz). When considering both age groups separately, this effect was only clearly evident and only survived statistical evaluation in the older adults. Together, these observations provide several new insights into the neural dynamics supporting separate as well as combined effects of spatial and temporal orienting of attention, and suggest that different neural dynamics associated with attentional orienting appear differentially sensitive to ageing. Academic Press 2018-09 /pmc/articles/PMC6057272/ /pubmed/29733953 http://dx.doi.org/10.1016/j.neuroimage.2018.05.002 Text en © 2018 The Authors http://creativecommons.org/licenses/by/4.0/ This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Heideman, Simone G.
Rohenkohl, Gustavo
Chauvin, Joshua J.
Palmer, Clare E.
van Ede, Freek
Nobre, Anna C.
Anticipatory neural dynamics of spatial-temporal orienting of attention in younger and older adults
title Anticipatory neural dynamics of spatial-temporal orienting of attention in younger and older adults
title_full Anticipatory neural dynamics of spatial-temporal orienting of attention in younger and older adults
title_fullStr Anticipatory neural dynamics of spatial-temporal orienting of attention in younger and older adults
title_full_unstemmed Anticipatory neural dynamics of spatial-temporal orienting of attention in younger and older adults
title_short Anticipatory neural dynamics of spatial-temporal orienting of attention in younger and older adults
title_sort anticipatory neural dynamics of spatial-temporal orienting of attention in younger and older adults
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6057272/
https://www.ncbi.nlm.nih.gov/pubmed/29733953
http://dx.doi.org/10.1016/j.neuroimage.2018.05.002
work_keys_str_mv AT heidemansimoneg anticipatoryneuraldynamicsofspatialtemporalorientingofattentioninyoungerandolderadults
AT rohenkohlgustavo anticipatoryneuraldynamicsofspatialtemporalorientingofattentioninyoungerandolderadults
AT chauvinjoshuaj anticipatoryneuraldynamicsofspatialtemporalorientingofattentioninyoungerandolderadults
AT palmerclaree anticipatoryneuraldynamicsofspatialtemporalorientingofattentioninyoungerandolderadults
AT vanedefreek anticipatoryneuraldynamicsofspatialtemporalorientingofattentioninyoungerandolderadults
AT nobreannac anticipatoryneuraldynamicsofspatialtemporalorientingofattentioninyoungerandolderadults