Cited by 321Memory and Neural MechanismsMemory Processes and InfluencesCognitive Functions and Memory

Similarity breeds proximity: pattern similarity within and across contexts is related to later mnemonic judgments of temporal proximity

Open access
Ezzyat, Youssef, Davachi, Lila·2014·Neuron

Abstract

Experiences unfold over time, but little is known about the mechanisms that support the formation of coherent episodic memories for temporally extended events. Recent work in animals has provided evidence for signals in hippocampus that could link events across temporal gaps; however, it is unknown whether and how such signals might be related to later memory for temporal information in humans. We measured patterns of fMRI BOLD activity as people encoded items that were separated in time and manipulated the presence of shared or distinct context across items. We found that hippocampal pattern similarity in the BOLD response across trials predicted later temporal memory decisions when context changed. By contrast, pattern similarity in lateral occipital cortex was related to memory only when context remained stable. These data provide evidence in humans that representational stability in hippocampus across time may be a mechanism for temporal memory organization.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1016/j.neuron.2014.01.042

Cites

80 of 80 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • Abrupt changes in stimulus features and/or task goals produce separation in memory.

    “In particular, inducing abrupt changes in stimulus features and/or task goals creates separation in memory [19,23–25].”

    From Does mental context drift or shift? (2017) · cites this paper as [19]

  • The amount of change in neural activity patterns across events is associated with memory for temporal order and temporal distance.

    “Furthermore, the degree to which neural activity patterns change across events has been associated with memory for temporal order and distance [16–19].”

    From Does mental context drift or shift? (2017) · cites this paper as [19]

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Ezzyat, Y., & Davachi, L.
Affiliations
New York University (US)
Corresponding author
Davachi, Lila
Venue
Neuron
Publisher
Elsevier BV
Published
2014-03
Volume
81
Issue
5
Pages
1179-1189
ISSN
0896-6273 (ISSN-L)
OpenAlex
W2097347024
Cited by
321
References
80
Citations by year
2026: 22 · 2025: 28 · 2024: 38 · 2023: 35 · 2022: 29 · 2021: 23 · 2020: 24 · 2019: 19 · 2018: 26 · 2017: 30 · 2016: 19 · 2015: 18 · 2014: 9 · 2013: 1
FWCI
14.13
Type
journal article
Language
en
Open access
Locations
  • Neuron (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
National Institute of Mental Health (R01MH074692)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory and Neural Mechanisms
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory Processes and Influences
  • Social Sciences › Psychology › Experimental and Cognitive Psychology › Cognitive Functions and Memory
Keywords
temporal memory, hippocampus, pattern similarity, episodic memory, representational stability, lateral occipital cortex, BOLD signal, time gap, memory organization
MeSH terms
Adolescent, Adult, Female, Hippocampus, Humans, Judgment, Magnetic Resonance Imaging, Male, Pattern Recognition, Visual, Photic Stimulation, Time Perception, Visual Cortex, Young Adult, Memory, Episodic

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review