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A registration study on the mechanism by which olfactory stimulation regulates cognitive function during sleep

A registration study on the mechanism by which olfactory stimulation regulates cognitive function during sleep

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
ChiCTR
Registry ID
ChiCTR2500102212
Enrollment
Unknown
Registered
2025-05-12
Start date
2025-06-01
Completion date
Unknown
Last updated
2025-05-19

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Major depressive disorder, cognitive impairment, insomnia

Interventions

Intervention Group 1:Olfactory (such as lavender) interventions are carried out during sleep (SWS).Sleep monitoring and brain function tests (MRI, near-infrared) before and after sleep, as well as cog
Intervention Group 2:Cognitive training is conducted under background odors before going to bed, and then olfactory (such as lavender) intervention is carried out during sleep (SWS)..Sleep monitoring
Control:No odor intervention was conducted. Only sleep monitoring, brain function examinations before and after sleep (MRI, near-infrared), and cognitive training tests were carried out

Sponsors

West China Hospital, Sichuan University
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to 65 Years

Inclusion criteria

Inclusion criteria: Inclusion criteria for healthy individuals: (1) Healthy adults (aged 18-60 years old); (2) No olfactory disorders or sleep problems Disorder or mental illness; (3) Voluntarily participate in the experiment and sign the informed consent. Inclusion criteria for MDD patients: (1) Patients diagnosed with MDD by DSM-5 (aged 18-60 years); (2 No olfactory disorder; (3) Voluntarily participate in the experiment and sign the informed consent. Inclusion criteria for MCI/ dementia patients: 1) Patients with cognitive impairment screened by MMSE (MMSE<24); (2) No olfactory disorder; (3) Voluntarily participate in the experiment and sign the informed consent. Inclusion criteria for patients with insomnia: (1) Patients diagnosed with insomnia by DSM-5 (aged 18-60 years); (2) No Have olfactory disorders; (3) Voluntarily participate in the experiment and sign the informed consent.

Exclusion criteria

Exclusion criteria: (1) Those with cognitive impairment or long-term use of drugs that affect cognition (such as antipsychotic drugs) Sedative-hypnotic drugs, etc. (2) Those who are allergic to the test odor; (3) Those who have recently attempted suicide or have suicidal thoughts; (4) In reality Having worked night shifts within 6 weeks before the test or having combined factors or diseases that affect sleep, such as OSA, etc. (5) Severe cardiopulmonary diseases Liver and kidney diseases, etc. (6) Unable to cooperate in completing the cognitive test.

Design outcomes

Primary

MeasureTime frame
Brain function;Cognitive function;Biomarker;Affective;

Secondary

MeasureTime frame
Dream content;

Countries

China

Contacts

Public ContactRong Ren

West China Hospital Sichuan University

498880651@qq.com+86 189 8060 5572

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 4, 2026