Evidence map›Paper›PMID 33854115›Full record

ArticleScientific reports2021

Delta-range coupling between prefrontal cortex and hippocampus supported by respiratory rhythmic input from the olfactory bulb in freely behaving rats.

Rola Mofleh, Bernat Kocsis

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
4.0field-weighted citation impact, top 5% of its field
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

25 citing papers in PubMed, 37 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Article
  5. Review
  6. Evidence That Respiratory Phase May Modulate Task-Related Neural Representations of Visual Stimuli.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2025
    Article
  7. CB-1 receptor agonist drastically changes oscillatory activity, defining active sleep.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  8. Breathing Modulates Network Activity in Frontal Brain Regions during Anxiety.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2025
    Article
  9. Selective Modulation of Fear Memory in Non-Rapid Eye Movement Sleep.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2024
    Article
  10. Article
  11. Article
  12. Article
  13. Motor Dysfunctions in Fibromyalgia Patients: The Importance of Breathing.Open access rheumatology : research and reviews · 2024
    Article
  14. Article
  15. Article
  16. Article
  17. Review
  18. Article
  19. Article
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

2 authors at 2 institutions in 1 country.

Rola MoflehDepartment Psychiatry at BIDMC, Harvard Medical School, 3 Blackfan Circle, Boston, MA, 02215, USA.
Bernat KocsisDepartment Psychiatry at BIDMC, Harvard Medical School, 3 Blackfan Circle, Boston, MA, 02215, USA. bkocsis@hms.harvard.edu.
Beth Israel Deaconess Hospital · USHarvard University · US

Funding

Spatiotemporal Network Dynamics in a Rat Model of SchizophreniaR01MH100820 · NIMH · BETH ISRAEL DEACONESS MEDICAL CENTER · PI DING, MINGZHOU, KOCSIS, BERNAT · 2014 to 2018
$2.1M
NIMH NIH HHS MH100820NIMH NIH HHS R01 MH100820
6 · The paper itself

Abstract

Respiratory rhythm (RR) during sniffing is known to couple with hippocampal theta rhythm. However, outside of the short sniffing bouts, a more stable ~ 2 Hz RR was recently shown to rhythmically modulate non-olfactory cognitive processes, as well. The underlying RR coupling with wide-spread forebrain activity was confirmed using advanced techniques, creating solid premise for investigating how higher networks use this mechanism in their communication. Here we show essential differences in the way prefrontal cortex (PFC) and hippocampus (HC) process the RR signal from the olfactory bulb (OB) that may support dynamic, flexible PFC-HC coupling utilizing this input. We used inter-regional coherences and their correlations in rats, breathing at low rate (~ 2 Hz), outside of the short sniffing bouts. We found strong and stable OB-PFC coherence in wake states, contrasting OB-HC coherence which was low but highly variable. Importantly, this variability was essential for establishing PFC-HC synchrony at RR, whereas variations of RRO in OB and PFC had no significant effect. The findings help to understand the mechanism of rhythmic modulation of non-olfactory cognitive processes by the on-going regular respiration, reported in rodents as well as humans. These mechanisms may be impaired when nasal breathing is limited or in OB-pathology, including malfunctions of the olfactory epithelium due to infections, such as in Covid-19.

Indexed as

AnimalsBehavior, AnimalDelta RhythmElectromyographyHippocampusMaleMotor ActivityNeural PathwaysOlfactory BulbPrefrontal CortexRatsRespiratory RateSleepWakefulness

Identifiers

PMID33854115
PMCPMC8046996
OpenAlexW3116142157

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.