Cited by 84Spatial Cognition and NavigationMemory and Neural MechanismsMemory Processes and Influences

Memory and navigation: Compression of space varies with route length and turns: COMPRESSION OF SPACE IN MEMORY

Bonasia, Kyra, Blommesteyn, Joseph, Moscovitch, Morris·2016·Hippocampus

Abstract

For memory to be efficient and useful during recall, problem-solving, and planning, retrieval must be compressed in time. Evidence from rodents suggests that neural compression during replay of spatial memories varies widely, with a range of compression ratios reported from 6:1 to 64:1. Anecdotal evidence suggests that similar compression occurs during mental navigation in humans: we recall how to get from one place to another countless times almost every day of our lives, and this recall never takes as long as physically travelling those routes would take. In this experiment we sought to determine whether this behavioural compression could be measured during mental navigation in humans (spatial memory replay), and which factors might affect the compression of such spatial memories. To this end, thirty participants mentally navigated routes between two landmarks, which varied in length and number of turns, as we measured replay times and recorded ratings of familiarity, detail, and presence. A multi-level model was used to determine which factors were associated with variation in compression. Route length and number of turns emerged from this model as significantly correlated with compression, such that longer routes were more compressed while compression was attenuated as the number of turns in a route increased. This suggests that compression during recall may be affected by specific features of a route, especially those that may act to segment the space or event being represented.

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Crossref · 10.1002/hipo.22539

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Authors
Bonasia, K., Blommesteyn, J., & Moscovitch, M.
Affiliations
University of Toronto (CA)
Corresponding author
Bonasia, Kyra
Venue
Hippocampus
Publisher
Wiley
Published
2015-10-23
Volume
26
Issue
1
Pages
9-12
ISSN
1050-9631 (ISSN-L)
OpenAlex
W1764902502
Cited by
84
References
21
Citations by year
2026: 3 · 2025: 10 · 2024: 9 · 2023: 5 · 2022: 3 · 2021: 2 · 2020: 11 · 2019: 24 · 2018: 9 · 2017: 4 · 2016: 4
FWCI
5.81
Type
journal article
Language
en
Open access
closed
Locations
  • Hippocampus (publishedVersion)
  • PubMed (publishedVersion)
Funders
Canadian Institutes of Health Research (449566)
Topics
  • Physical Sciences › Engineering › Automotive Engineering › Spatial Cognition and Navigation
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory and Neural Mechanisms
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory Processes and Influences
Keywords
spatial memory, memory compression, mental navigation, memory replay, route length, turns, familiarity, presence, detail
MeSH terms
Female, Humans, Male, Models, Psychological, Neuropsychological Tests, Young Adult, Spatial Memory, Spatial Navigation

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