Evidence map›Paper›PMID 37554295›Full record

ReviewFrontiers in neuroscience2023

Overnight olfactory enrichment using an odorant diffuser improves memory and modifies the uncinate fasciculus in older adults.

Cynthia C Woo, Blake Miranda, Mithra Sathishkumar, Farideh Dehkordi-Vakil, Michael A Yassa, Michael Leon

Abstract readReview
PubMed Full text at PMC Publisher
In one paragraph

Review in Frontiers in neuroscience, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing 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

16 citing papers in PubMed.

  1. Trial
  2. Effects of inhaled aromatherapy on sleep quality and cognitive function in older adults: a randomised controlled trial.The journals of gerontology. Series A, Biological sciences and medical sciences · 2026
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  9. Neurobiophilia.Brain sciences · 2026
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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

6 authors.

Cynthia C WooDepartment of Neurobiology and Behavior, University of California, Irvine, Irvine, CA, United States.
Blake MirandaDepartment of Neurobiology and Behavior, University of California, Irvine, Irvine, CA, United States.
Mithra SathishkumarDepartment of Neurobiology and Behavior, University of California, Irvine, Irvine, CA, United States.
Farideh Dehkordi-VakilDepartment of Statistics, University of California, Irvine, Irvine, CA, United States.
Michael A YassaDepartment of Neurobiology and Behavior, University of California, Irvine, Irvine, CA, United States.
Michael LeonDepartment of Neurobiology and Behavior, University of California, Irvine, Irvine, CA, United States.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Objective: Cognitive loss in older adults is a growing issue in our society, and there is a need to develop inexpensive, simple, effective in-home treatments. This study was conducted to explore the use of olfactory enrichment at night to improve cognitive ability in healthy older adults. Methods: Male and female older adults ( Results: A statistically significant 226% improvement was observed in the enriched group compared to the control group on the Rey Auditory Verbal Learning Test and improved functioning was observed in the left uncinate fasciculus, as assessed by mean diffusivity. Conclusion: Minimal olfactory enrichment administered at night produces improvements in both cognitive and neural functioning. Thus, olfactory enrichment may provide an effective and low-effort pathway to improved brain health.

Indexed as

cognitive lossenvironmental enrichmentfMRIolfactionolfactory traininguncinate fasciculus

Identifiers

PMID37554295
PMCPMC10405466

What OpenQuestion holds

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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.