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The effects of odor presentation during REM sleep on dream emotionality

The effects of odor presentation during REM sleep on dream emotionality - The effects of odor presentation during REM sleep on dream emotionality

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
JPRN
Registry ID
JPRN-UMIN000051485
Enrollment
16
Registered
2023-06-29
Start date
2022-11-01
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

Healthy adult

Interventions

1: Pre-exposure sleep experiment. Phenylethyl alcohol (rose-like odor) will be presented during nocturnal sleep at a sleep chamber of laboratory. 2: Repeted exposure for Phenylethyl alcohol to induce

Sponsors

National Center of Neurology and Psychiatry
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1) Subjective ratings on 1-9 scales of Phenylethyl alcohol and Eugenol at screening are as follows: preference is middle (3-7 points), familiarity is low (<=6 points). 2) 20<= and 25>= years old. 3) No sleep disorder, olfaction/taste disorder and no history. 4) No sleep disorder was susupected by PSG at adaptation night. 5) Not taking medications that affect sleep, olfaction/taste.

Exclusion criteria

Exclusion criteria: 1) Having difficulty in filling out Japanese explanatory documents, consent forms, and survey forms. 2) Who cannot stay in the sleep chamber of National center of neurology and psychiatry. 3) Who have specific episodic memory about Phenylethyl alcohol and eugenol, confirmed at screening. 4) No improvement of preference and familiarity ratings through odor exposure. 5) Persons at high risk person developing dermatitis due to experimental equipments or alcohol cotton for attach the electrodes. 6) Persons with claustrophobia. 7) Patients who may have sudden changeable sickness or have a history. 8) Patients who have mental disorders diagnosis/treatment or have a history. 9) Women who are or may be pregnant. 10) Lactating women. 11) Any other person judged by the investigator to be inappropriate as a subject.

Design outcomes

Primary

MeasureTime frame
Amygdala activitiy during REM sleep estimated from EEG

Countries

Japan

Contacts

Public ContactSatomi Okabe

National Center of Neurology and Psychiatry Department of sleep-wake disorders, National institute of mental health

satomiokabe.experiment@gmail.com042-346-2014

Outcome results

None listed

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