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The effect of aromatherapy on improving cognitive performance

The effect of aromatherapy on improving cognitive performance - The effect of aromatherapy on improving cognitive performance

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
JPRN
Registry ID
JPRN-UMIN000020965
Enrollment
40
Registered
2016-02-10
Start date
2015-07-30
Completion date
Unknown
Last updated
2026-06-29

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

Conditions

Cognitively normal older adults

Interventions

All participants ware a diffuser necklace everyday for 8 weeks except while bathing and sleeping. They add 1-2 drops of 100% pure essential oil into the necklace everyday.

Sponsors

Keio University School of Medicine
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1) Age 65 to 89 years 2) Mini-Mental State Examination (MMSE) score of 24-30 3) Capacity to provide written informed consent

Exclusion criteria

Exclusion criteria: 1) Current or past history of alcohol abuse/dependence 2) Current of past history of epilepsy 3) Less than 7 years of formal education 4) Current use of antidepressant or antipsychotic medications and long term use of sedative hypnotics (including anti-anxiety) medications 5) History of psychiatric or neurological disorders that could affect cognitive functions 6) Current serious concomitant diseases (including hepatic, renal, or endocrinological illnesses) 7) Current diseases resulting in olfactory dysfunction

Design outcomes

Primary

MeasureTime frame
Rey Auditory Verbal Learning Test (RAVLT) and Paced Auditory Serial Addition Test (PASAT) at baseline and 8 weeks

Secondary

MeasureTime frame
Stait-Trait Anxiety Inventory (STAI) and Apathy Scale at baseline and 8 week

Countries

Japan

Contacts

Public ContactTaisei Wake

Keio University School of Medicine Department of Neuropsychiatry

taiseiwake@z8.keio.jp03-5363-3971

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026