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Hierarchical event segmentation of episodic memory in virtual reality

Li, Yue ; Johansson, Mikael LU orcid and Nikolaev, Andrey LU orcid (2025) In npj Science of Learning 10(1).
Abstract
Contextual shifts are crucial for episodic memory, setting event boundaries during event segmentation. While lab research provides insights, it often lacks the complexity of real-world experiences. We addressed this gap by examining perceptual and conceptual boundaries using virtual reality (VR). Participants acted as salespeople, interacting with customers in a VR environment. Spatial boundaries separated visually distinct booths, while conceptual boundaries were defined by customer requests. Memory was assessed through a recency discrimination task. Results indicated boundary crossings impaired sequence memory, consistent with previous findings. Crucially, conceptual boundaries, but not spatial boundaries, significantly influenced the... (More)
Contextual shifts are crucial for episodic memory, setting event boundaries during event segmentation. While lab research provides insights, it often lacks the complexity of real-world experiences. We addressed this gap by examining perceptual and conceptual boundaries using virtual reality (VR). Participants acted as salespeople, interacting with customers in a VR environment. Spatial boundaries separated visually distinct booths, while conceptual boundaries were defined by customer requests. Memory was assessed through a recency discrimination task. Results indicated boundary crossings impaired sequence memory, consistent with previous findings. Crucially, conceptual boundaries, but not spatial boundaries, significantly influenced the accuracy of sequence memory, suggesting that top-down processes dominate bottom-up perceptual processes in naturalistic event segmentation. Confidence in correct responses indicated that perceived memory quality was highest when participants stayed within and did not cross both spatially and conceptually defined events. Findings highlight VR’s effectiveness for studying hierarchical contextual influences in interactive episodic memory tasks. (Less)
Please use this url to cite or link to this publication:
author
; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
episodic memory, event segmentation, event boundaries, recency discrimination, virtual reality
in
npj Science of Learning
volume
10
issue
1
article number
25
publisher
Nature Publishing Group
external identifiers
  • pmid:40348753
  • scopus:105004924797
ISSN
2056-7936
DOI
10.1038/s41539-025-00321-6
language
English
LU publication?
yes
id
911eb770-e885-4689-8c42-a41856108121
date added to LUP
2025-05-01 10:29:13
date last changed
2025-07-11 10:24:06
@article{911eb770-e885-4689-8c42-a41856108121,
  abstract     = {{Contextual shifts are crucial for episodic memory, setting event boundaries during event segmentation. While lab research provides insights, it often lacks the complexity of real-world experiences. We addressed this gap by examining perceptual and conceptual boundaries using virtual reality (VR). Participants acted as salespeople, interacting with customers in a VR environment. Spatial boundaries separated visually distinct booths, while conceptual boundaries were defined by customer requests. Memory was assessed through a recency discrimination task. Results indicated boundary crossings impaired sequence memory, consistent with previous findings. Crucially, conceptual boundaries, but not spatial boundaries, significantly influenced the accuracy of sequence memory, suggesting that top-down processes dominate bottom-up perceptual processes in naturalistic event segmentation. Confidence in correct responses indicated that perceived memory quality was highest when participants stayed within and did not cross both spatially and conceptually defined events. Findings highlight VR’s effectiveness for studying hierarchical contextual influences in interactive episodic memory tasks.}},
  author       = {{Li, Yue and Johansson, Mikael and Nikolaev, Andrey}},
  issn         = {{2056-7936}},
  keywords     = {{episodic memory, event segmentation, event boundaries, recency discrimination, virtual reality}},
  language     = {{eng}},
  month        = {{05}},
  number       = {{1}},
  publisher    = {{Nature Publishing Group}},
  series       = {{npj Science of Learning}},
  title        = {{Hierarchical event segmentation of episodic memory in virtual reality}},
  url          = {{http://dx.doi.org/10.1038/s41539-025-00321-6}},
  doi          = {{10.1038/s41539-025-00321-6}},
  volume       = {{10}},
  year         = {{2025}},
}