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Effects of d-cycloserine and valproic acid on extinction of fear conditioning or other lerning

Effects of d-cycloserine and valproic acid on extinction of fear conditioning or other lerning - Effects of d-cycloserine and valproic acid on learning

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
JPRN
Registry ID
JPRN-UMIN000001973
Enrollment
60
Registered
2009-05-15
Start date
2009-06-01
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 volunteers

Interventions

100mg D-cycloserine 400mg Valproic acid 100mg D-cycloserine with 400mg Valproic acid placebo (inactive substance)

Sponsors

National Institute of Mental Health, National Center of Neurology and Psychiatry
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: Healthy volunteers with informed consent

Exclusion criteria

Exclusion criteria: 1. Having previous histories of drug or alcohol abuse or of neurological, psychiatric, or physiological disorders. 2. Taking an OTC [over-the-counter] drug and/or supplement tablets regularly. 3. Who recognized as unsuitable for testing by physician.

Design outcomes

Primary

MeasureTime frame
Participants' physiological responses to the stimuli will be recorded. Electrodes will be placed on two fingers (to measure sweat, or electrodermal activity), on both wrists and a lower leg (to measure heart rate).

Secondary

MeasureTime frame
Accuracy and reaction time to tha memory tasks are also included as secondary ealuation outcomes.

Countries

Japan

Contacts

Public ContactKenichi Kuriyama

National Institute of Mental Health, National Center of Neurology and Psychiatry Departments of Adult Mental Health

kenichik@ncnp.go.jp042-346-1986

Outcome results

None listed

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