Enhancement of processing speed and accuracy of visual detection by GABA aspiration

Enhancement of processing speed and accuracy of visual detection by GABA aspiration in the human brain - The clinical trial of GABA aspiration

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000038851

Enrollment

Registered

2019-12-11

Start date

2018-12-15

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 men

Interventions

Aspirating 0.5 % GABA vapor diluted by propylene glycol for 7 times (1 aspiration /2 sec). Aspirating 0.5 % caffeine vapor diluted by propylene glycol for 7 times (1 aspiration /2 sec). Aspirating vol

Eligibility

Sex/Gender

Male

Inclusion criteria

Inclusion criteria: (1) Persons who is generally regarded as healthy (2) Persons who can give voluntary written consent to participate in the present trial

Exclusion criteria

Exclusion criteria: (1) Persons who have been treated their illness or prevention in a clinic at the time of their informed consent (2) Persons who will not be judged suitable to the participants by the investigator

Design outcomes

Primary

Measure	Time frame
Measurement of event-related potentials	—

Secondary

Measure	Time frame
The reaction times and the accuracies by using oddball tasks.	—

Countries

Japan

Contacts

Public ContactKuniyoshi Shimizu

Faculty of Agriculture, Kyushu University Laboratory of Systematic Forest and forest Products Science

shimizu@agr.kyushu-u.ac.jp092-802-4673

Outcome results

None listed

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