Evidence map›Paper›PMID 36417871›Full record

ArticleCell reports2022

Exercise increases information content and affects long-term stability of hippocampal place codes.

Yoav Rechavi, Alon Rubin, Ofer Yizhar, Yaniv Ziv

Abstract read
In one paragraph

Article in Cell reports, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

6 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors.

Yoav RechaviDepartment of Brain Sciences, Weizmann Institute of Science, Rehovot 76100, Israel.
Alon RubinDepartment of Brain Sciences, Weizmann Institute of Science, Rehovot 76100, Israel. Electronic address: alon.rubin@weizmann.ac.il.
Ofer YizharDepartment of Brain Sciences, Weizmann Institute of Science, Rehovot 76100, Israel.
Yaniv ZivDepartment of Brain Sciences, Weizmann Institute of Science, Rehovot 76100, Israel. Electronic address: yaniv.ziv@weizmann.ac.il.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Physical exercise is known to augment brain functioning, improving memory and cognition. However, while some of the physiological effects of physical activity on the brain are known, little is known about its effects on the neural code. Using calcium imaging in freely behaving mice, we study how voluntary exercise affects the quality and long-term stability of hippocampal place codes. We find that running accelerates the emergence of a more informative spatial code in novel environments and increases code stability over days and weeks. Paradoxically, although runners demonstrated an overall more stable place code than their sedentary peers, their place code changed faster when controlling for code quality level. A model-based simulation shows that the combination of improved code quality and faster representational drift in runners, but neither of these effects alone, could account for our results. Thus, exercise may enhance hippocampal function via a more informative and dynamic place code.

Indexed as

Physical Conditioning, AnimalAnimalsBrainBrain-Derived Neurotrophic FactorCognitionHippocampusMiceBrain-Derived Neurotrophic Factoradult neurogenesiscalcium imagingCP: Neurosciencehippocampusmemoryneural codingphysical activityplace cellsrepresentational driftrunning

Identifiers

PMID36417871
PMCPMC9715913

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.