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An fMRI study of long-term everyday memory using SenseCam

Milton, F, Muhlert, Nils, Butler, C. R., Smith, A., Benattayallah, A. and Zeman, Adam Z. 2011. An fMRI study of long-term everyday memory using SenseCam. Memory 19 (7) , pp. 733-744. 10.1080/09658211.2011.552185

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Abstract

We used a novel automatic camera, SenseCam, to investigate recognition memory for real-life events at a 5-month retention interval. Using fMRI we assessed recollection and familiarity memory using the remember/know procedure. Recollection evoked no medial temporal lobe (MTL) activation compared to familiarity and new responses. Instead, recollection activated diverse regions in neocortex including medial prefrontal cortex. We observed decreased activation in anterior hippocampus/ anterior parahippocampal gyrus (aPHG) at 5 months compared to a 36-hour retention interval. Familiarity was associated with greater activation in aPHG and posterior parahippocampal gyrus (pPHG) than recollection and new responses. Familiarity activation decreased over time in anterior hippocampus/aPHG and posterior hippocampus/pPHG. The engagement of neocortical regions such as medial prefrontal cortex at a 5-month delay, together with the reduced MTL activation at 5 months relative to at 36 hours is in line with the assumptions of Consolidation theory. SenseCam provides a valuable technique for assessing the processes that underlie remote everyday recognition memory.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Psychology
Subjects: R Medicine > RC Internal medicine > RC0321 Neuroscience. Biological psychiatry. Neuropsychiatry
Uncontrolled Keywords: fMRI, Recognition memory, SenseCam, Recollection, Familiarity, Consolidation
Additional Information: Special Issue: SenseCam: The Future of Everyday Memory Research?
Publisher: Taylor & Francis
ISSN: 0965-8211
Last Modified: 04 Jun 2017 04:41
URI: http://orca.cf.ac.uk/id/eprint/42920

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