Retrieval and Monitoring Processes during Visual Working Memory: An ERP Study of the Benefit of Visual Semantics
In this study, we examined electrophysiological indices of episodic remembering whilst participants recalled novel shapes, with and without semantic content, within a visual working memory paradigm. The components of interest were the parietal episodic (PE; 400–800 ms) and late posterior negativity...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2017-07-01
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| Series: | Frontiers in Psychology |
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| Online Access: | http://journal.frontiersin.org/article/10.3389/fpsyg.2017.01080/full |
| _version_ | 1818366587364704256 |
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| author | Elizabeth Orme Louise A. Brown Leigh M. Riby |
| author_facet | Elizabeth Orme Louise A. Brown Leigh M. Riby |
| author_sort | Elizabeth Orme |
| collection | DOAJ |
| description | In this study, we examined electrophysiological indices of episodic remembering whilst participants recalled novel shapes, with and without semantic content, within a visual working memory paradigm. The components of interest were the parietal episodic (PE; 400–800 ms) and late posterior negativity (LPN; 500–900 ms), as these have previously been identified as reliable markers of recollection and post-retrieval monitoring, respectively. Fifteen young adults completed a visual matrix patterns task, assessing memory for low and high semantic visual representations. Matrices with either low semantic or high semantic content (containing familiar visual forms) were briefly presented to participants for study (1500 ms), followed by a retention interval (6000 ms) and finally a same/different recognition phase. The event-related potentials of interest were tracked from the onset of the recognition test stimuli. Analyses revealed equivalent amplitude for the earlier PE effect for the processing of both low and high semantic stimulus types. However, the LPN was more negative-going for the processing of the low semantic stimuli. These data are discussed in terms of relatively ‘pure’ and complete retrieval of high semantic items, where support can readily be recruited from semantic memory. However, for the low semantic items additional executive resources, as indexed by the LPN, are recruited when memory monitoring and uncertainty exist in order to recall previously studied items more effectively. |
| first_indexed | 2024-12-13T22:38:32Z |
| format | Article |
| id | doaj.art-242ed797e6714b5e867cf4dc3c9ce2c8 |
| institution | Directory Open Access Journal |
| issn | 1664-1078 |
| language | English |
| last_indexed | 2024-12-13T22:38:32Z |
| publishDate | 2017-07-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Psychology |
| spelling | doaj.art-242ed797e6714b5e867cf4dc3c9ce2c82022-12-21T23:28:54ZengFrontiers Media S.A.Frontiers in Psychology1664-10782017-07-01810.3389/fpsyg.2017.01080235589Retrieval and Monitoring Processes during Visual Working Memory: An ERP Study of the Benefit of Visual SemanticsElizabeth Orme0Louise A. Brown1Leigh M. Riby2Department of Psychology, Northumbria UniversityNewcastle upon Tyne, United KingdomSchool of Psychological Sciences & Health, University of StrathclydeGlasgow, United KingdomDepartment of Psychology, Northumbria UniversityNewcastle upon Tyne, United KingdomIn this study, we examined electrophysiological indices of episodic remembering whilst participants recalled novel shapes, with and without semantic content, within a visual working memory paradigm. The components of interest were the parietal episodic (PE; 400–800 ms) and late posterior negativity (LPN; 500–900 ms), as these have previously been identified as reliable markers of recollection and post-retrieval monitoring, respectively. Fifteen young adults completed a visual matrix patterns task, assessing memory for low and high semantic visual representations. Matrices with either low semantic or high semantic content (containing familiar visual forms) were briefly presented to participants for study (1500 ms), followed by a retention interval (6000 ms) and finally a same/different recognition phase. The event-related potentials of interest were tracked from the onset of the recognition test stimuli. Analyses revealed equivalent amplitude for the earlier PE effect for the processing of both low and high semantic stimulus types. However, the LPN was more negative-going for the processing of the low semantic stimuli. These data are discussed in terms of relatively ‘pure’ and complete retrieval of high semantic items, where support can readily be recruited from semantic memory. However, for the low semantic items additional executive resources, as indexed by the LPN, are recruited when memory monitoring and uncertainty exist in order to recall previously studied items more effectively.http://journal.frontiersin.org/article/10.3389/fpsyg.2017.01080/fullevent-related potentialsERPEEGvisuo-spatial working memoryvisual short-term memorymemory retrieval |
| spellingShingle | Elizabeth Orme Louise A. Brown Leigh M. Riby Retrieval and Monitoring Processes during Visual Working Memory: An ERP Study of the Benefit of Visual Semantics Frontiers in Psychology event-related potentials ERP EEG visuo-spatial working memory visual short-term memory memory retrieval |
| title | Retrieval and Monitoring Processes during Visual Working Memory: An ERP Study of the Benefit of Visual Semantics |
| title_full | Retrieval and Monitoring Processes during Visual Working Memory: An ERP Study of the Benefit of Visual Semantics |
| title_fullStr | Retrieval and Monitoring Processes during Visual Working Memory: An ERP Study of the Benefit of Visual Semantics |
| title_full_unstemmed | Retrieval and Monitoring Processes during Visual Working Memory: An ERP Study of the Benefit of Visual Semantics |
| title_short | Retrieval and Monitoring Processes during Visual Working Memory: An ERP Study of the Benefit of Visual Semantics |
| title_sort | retrieval and monitoring processes during visual working memory an erp study of the benefit of visual semantics |
| topic | event-related potentials ERP EEG visuo-spatial working memory visual short-term memory memory retrieval |
| url | http://journal.frontiersin.org/article/10.3389/fpsyg.2017.01080/full |
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