Mental reinstatement of encoding context improves episodic remembering
Bramao, Ines LU ; Karlsson, Anna and Johansson, Mikael LU
(2017)
In Cortex
94.
p.15-26
- Abstract
- This study investigates context-dependent memory retrieval. Previous work has shown that physically re-experiencing the encoding context at retrieval improves memory accessibility. The current study examined if mental reconstruction of the original encoding context would yield parallel memory benefits. Participants performed a cued-recall memory task, preceded either by a mental or by a physical context reinstatement task, and we manipulated whether the context reinstated at retrieval overlapped with the context of the target episode. Both behavioral and electrophysiological measures of brain activity showed strong encoding-retrieval (E-R) overlap effects, with facilitated episodic retrieval when the encoding and retrieval contexts... (More)
- This study investigates context-dependent memory retrieval. Previous work has shown that physically re-experiencing the encoding context at retrieval improves memory accessibility. The current study examined if mental reconstruction of the original encoding context would yield parallel memory benefits. Participants performed a cued-recall memory task, preceded either by a mental or by a physical context reinstatement task, and we manipulated whether the context reinstated at retrieval overlapped with the context of the target episode. Both behavioral and electrophysiological measures of brain activity showed strong encoding-retrieval (E-R) overlap effects, with facilitated episodic retrieval when the encoding and retrieval contexts overlapped. The electrophysiological E-R overlap effect was more sustained and involved more posterior regions when context was mentally compared with physically reinstated. Additionally, a time-frequency analysis revealed that context reinstatement alone engenders recollection of the target episode. However, while recollection of the target memory is readily prompted by a physical reinstatement, target recollection during mental reinstatement is delayed and depends on the gradual reconstruction of the context. Taken together, our results show facilitated episodic remembering also when mentally reinstating the encoding context; and that such benefits are supported by both shared and partially non-overlapping neural mechanisms when the encoding context is mentally reconstructed as compared with physically presented at the time of retrieval. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/bffcdb6f-77eb-4043-801e-d28bd35ee593
- author
- Bramao, Ines
LU
; Karlsson, Anna
and Johansson, Mikael
LU
- organization
- publishing date
- 2017
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- episodic memory, encoding-retrieval overlap, context reinstatement, mental imagery, electrophysiological recordings
- in
- Cortex
- volume
- 94
- pages
- 15 - 26
- publisher
- Elsevier
- external identifiers
-
- scopus:85022324690
- pmid:28710908
- wos:000411548300002
- ISSN
- 0010-9452
- DOI
- 10.1016/j.cortex.2017.06.007
- project
- Measuring memory reactivation: The temporal dynamics of remembering
- Culture, brain, learning: a Wallenberg Network Initiative
- Learning and remembering: The cognitive neuroscience of memory for real-world events
- language
- English
- LU publication?
- yes
- id
- bffcdb6f-77eb-4043-801e-d28bd35ee593
- date added to LUP
- 2017-06-14 16:08:07
- date last changed
- 2022-06-27 18:31:29
@article{bffcdb6f-77eb-4043-801e-d28bd35ee593,
abstract = {{This study investigates context-dependent memory retrieval. Previous work has shown that physically re-experiencing the encoding context at retrieval improves memory accessibility. The current study examined if mental reconstruction of the original encoding context would yield parallel memory benefits. Participants performed a cued-recall memory task, preceded either by a mental or by a physical context reinstatement task, and we manipulated whether the context reinstated at retrieval overlapped with the context of the target episode. Both behavioral and electrophysiological measures of brain activity showed strong encoding-retrieval (E-R) overlap effects, with facilitated episodic retrieval when the encoding and retrieval contexts overlapped. The electrophysiological E-R overlap effect was more sustained and involved more posterior regions when context was mentally compared with physically reinstated. Additionally, a time-frequency analysis revealed that context reinstatement alone engenders recollection of the target episode. However, while recollection of the target memory is readily prompted by a physical reinstatement, target recollection during mental reinstatement is delayed and depends on the gradual reconstruction of the context. Taken together, our results show facilitated episodic remembering also when mentally reinstating the encoding context; and that such benefits are supported by both shared and partially non-overlapping neural mechanisms when the encoding context is mentally reconstructed as compared with physically presented at the time of retrieval.}},
author = {{Bramao, Ines and Karlsson, Anna and Johansson, Mikael}},
issn = {{0010-9452}},
keywords = {{episodic memory; encoding-retrieval overlap; context reinstatement; mental imagery; electrophysiological recordings}},
language = {{eng}},
pages = {{15--26}},
publisher = {{Elsevier}},
series = {{Cortex}},
title = {{Mental reinstatement of encoding context improves episodic remembering}},
url = {{http://dx.doi.org/10.1016/j.cortex.2017.06.007}},
doi = {{10.1016/j.cortex.2017.06.007}},
volume = {{94}},
year = {{2017}},
}