Effects of linearly polarized near-infrared laser irradiation near the stellate ganglion on autonomic nerves and electroencephalograms

Effects of linearly polarized near-infrared laser irradiation near the stellate ganglion on autonomic nerves and electroencephalograms - Effects of linearly polarized near-infrared laser irradiation near the stellate ganglion on autonomic nerves and electroencephalograms

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000060816

Enrollment

Registered

2026-03-04

Start date

2019-08-29

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

People without the disease

Interventions

Linearly polarized near-infrared irradiation (probe placed near the stellate ganglion) No irradiation (probe placed near the stellate ganglion)

Eligibility

Sex/Gender

Female

Inclusion criteria

Inclusion criteria: Individuals without illness Women aged 20-40 Volunteers (recruited via posters)

Exclusion criteria

Exclusion criteria: Patients with a disease affecting the autonomic nervous system or electroencephalogram (EEG) Past smoking history Patients taking regular medication Women who are pregnant, may be pregnant, are within 28 days of giving birth, or are breastfeeding Patients deemed inappropriate for study participation due to psychiatric illness or symptoms Patients with photosensitivity Other patients deemed inappropriate by a physician

Design outcomes

Primary

Measure	Time frame
Autonomic nervous system (LF/HF, HF, LF)	—

Secondary

Measure	Time frame
EEG, circulatory dynamics, respiratory rate	—

Countries

Japan

Contacts

Public ContactKaoru Yamashita

Kagoshima University Hospital Dental Anesthesiology

kaorun@dent.kagoshima-u.ac.jp099-275-6288

Outcome results

None listed

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