Creating easy-to-notice and low-stress signal sounds based on biological rhythms

Creating easy-to-notice and low-stress signal sounds based on biological rhythms - Creating easy-to-notice and low-stress signal sounds based on biological rhythms

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000057410

Enrollment

Registered

2025-05-01

Start date

2019-04-20

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

Healty adult men

Interventions

Start time: 8:00 Start time: 16:00

Eligibility

Sex/Gender

Male

Inclusion criteria

Inclusion criteria: This study is performed on adults with no history of hearing problems.

Exclusion criteria

Exclusion criteria: (1) Patients with a result score of 3 or 4 on the Cornell Medical Index for neurosis emotional disorders (2) The score of Morningness Eveningness Questionnaire is 70 or more(extreme morning person) or 30 or less(extreme night person) (3) Pittsburgh Sleep Questionnaire with a score of 6 or higher (4) Those who have had a change in their living hours due to shift work or travel to time zones within one month (5) Those who are taking any oral medication or smoking (6) Students who are currently enrolled or may be enrolled in a course that the principal investigator is taking

Design outcomes

Primary

Measure	Time frame
Heart rate variability	—

Countries

Japan

Contacts

Public ContactTomoko Wakamura

Kyoto University School of Human Health Sciences, Graduate School of Medicine

wakamura.tomoko.5v@kyoto-ac.jp81-75-751-3974

Outcome results

None listed

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