Bright light exposure effects on extinction learning of fear conditioning in human

Bright light exposure effects on extinction learning of fear conditioning in human - Bright light exposure effects on fear extinction

Status

Active, not recruiting

Phases

Phase 1

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000006316

Enrollment

Registered

2011-09-08

Start date

2011-08-01

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

Anxiety disorder/ PTSD

Interventions

Bright light single exposure low illumination single exposure

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: healthy adults

Exclusion criteria

Exclusion criteria: retinal dystrophy/ age-related maculopathy/ hematoporphyria/ lupus erythematosus/ photosensitivity eruption/ chronic photosensitivity/ circadian rhythm sleep disorder/ shiftworker/ irregular worker/ recipient of antipsychotics, psoralen, anti-arrhythmics, antimalarials, antirheumatics or St. John's wort

Design outcomes

Primary

Measure	Time frame
Skin conductance response	—

Secondary

Measure	Time frame
Behaviour	—

Countries

Japan

Outcome results

None listed

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