Temporal expectations prepare visual working memory for behaviour
Working memory enables us to retain past sensations in service of anticipated task demands. How we prepare for anticipated task demands during working memory retention remains poorly understood. Here, we focused on the role of time – asking how temporal expectations help prepare for ensuing memory-g...
| Main Authors: | , , |
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| Format: | Journal article |
| Language: | English |
| Published: |
Massachusetts Institute of Technology Press
2020
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| _version_ | 1797060412573745152 |
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| author | Jin, W De Ozorio Nobre, A van Ede, F |
| author_facet | Jin, W De Ozorio Nobre, A van Ede, F |
| author_sort | Jin, W |
| collection | OXFORD |
| description | Working memory enables us to retain past sensations in service of anticipated task demands. How we prepare for anticipated task demands during working memory retention remains poorly understood. Here, we focused on the role of time – asking how temporal expectations help prepare for ensuing memory-guided behaviour. We manipulated the expected probe time in a delayed change-detection task and report that temporal expectation can have a profound influence on memory-guided behavioural performance. Electroencephalography (EEG) measurements corroborated the utilisation of temporal expectations: demonstrating the involvement of a classic EEG signature of temporal expectation – the Contingent Negative Variation (CNV) – in the context of working memory. We also report the influence of temporal expectations on two EEG signatures associated with visual working memory – the lateralisation of 8-12 Hz alpha activity, and the Contralateral Delay Activity (CDA). We observed a dissociation between these signatures, whereby alpha lateralisation (but not the CDA) adapted to the time of expected memory utilisation. These data show how temporal expectations prepare visual working memory for behaviour, and shed new light on the electrophysiological markers of both temporal expectation and working memory. |
| first_indexed | 2024-03-06T20:16:45Z |
| format | Journal article |
| id | oxford-uuid:2c625737-c68e-44b8-91d3-23c21e5b1d82 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T20:16:45Z |
| publishDate | 2020 |
| publisher | Massachusetts Institute of Technology Press |
| record_format | dspace |
| spelling | oxford-uuid:2c625737-c68e-44b8-91d3-23c21e5b1d822022-03-26T12:36:53ZTemporal expectations prepare visual working memory for behaviourJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:2c625737-c68e-44b8-91d3-23c21e5b1d82EnglishSymplectic ElementsMassachusetts Institute of Technology Press2020Jin, WDe Ozorio Nobre, Avan Ede, FWorking memory enables us to retain past sensations in service of anticipated task demands. How we prepare for anticipated task demands during working memory retention remains poorly understood. Here, we focused on the role of time – asking how temporal expectations help prepare for ensuing memory-guided behaviour. We manipulated the expected probe time in a delayed change-detection task and report that temporal expectation can have a profound influence on memory-guided behavioural performance. Electroencephalography (EEG) measurements corroborated the utilisation of temporal expectations: demonstrating the involvement of a classic EEG signature of temporal expectation – the Contingent Negative Variation (CNV) – in the context of working memory. We also report the influence of temporal expectations on two EEG signatures associated with visual working memory – the lateralisation of 8-12 Hz alpha activity, and the Contralateral Delay Activity (CDA). We observed a dissociation between these signatures, whereby alpha lateralisation (but not the CDA) adapted to the time of expected memory utilisation. These data show how temporal expectations prepare visual working memory for behaviour, and shed new light on the electrophysiological markers of both temporal expectation and working memory. |
| spellingShingle | Jin, W De Ozorio Nobre, A van Ede, F Temporal expectations prepare visual working memory for behaviour |
| title | Temporal expectations prepare visual working memory for behaviour |
| title_full | Temporal expectations prepare visual working memory for behaviour |
| title_fullStr | Temporal expectations prepare visual working memory for behaviour |
| title_full_unstemmed | Temporal expectations prepare visual working memory for behaviour |
| title_short | Temporal expectations prepare visual working memory for behaviour |
| title_sort | temporal expectations prepare visual working memory for behaviour |
| work_keys_str_mv | AT jinw temporalexpectationspreparevisualworkingmemoryforbehaviour AT deozorionobrea temporalexpectationspreparevisualworkingmemoryforbehaviour AT vanedef temporalexpectationspreparevisualworkingmemoryforbehaviour |