Computerized Cognitive AddictionTherapy, Electronic Health Records, Methamphetamine-dependence, Transcranial Direct Current Stimulation
Conditions
Brief summary
Transcranial direct current stimulation (tDCS) combined with computerized cognitive addiction therapy(CCAT) for methamphetamine(MA) dependent patients in voluntary drug rehabilitation center. Electronic medical systems were applied for drug related knowledge education, self-evaluation and outpatient follow-up reminder after intervention in order to reduce relapse behaviors.
Interventions
Ture 1-2 mA current of tDCS intervention in patients' binary brain DLPFC areas(20 mm).
Sham tDCS intervention in patients' binary brain DLPFC areas(20 mm).
Sponsors
Study design
Eligibility
Inclusion criteria
* Methamphetamine dependent patients with normal eyesight and hearing.
Exclusion criteria
* any diagnosis of DSM-IV axis I diseases. * any physical diseases which might influence cognitive function such as epilepsy, cerebrovascular disease or brain injury. * negative behaviors or harm to others. * cognitive enhance drug use history in last 6 months. * other drug dependence(except nicotine).
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Change from Baseline cue-induced craving at 2 weeks | 2 weeks | Participants were instructed to watch methamphetamine-related videos by VR and rate their level of craving after smelling and recalling the last time they engaged in drug use. Craving was assessed by visual analog scales (VAS), with 0 mm being no cravingand 100 mm representing most craving ever experienced for methamphetamine. |
| Change from Baseline cue-induced craving at 4 weeks | 4 weeks | Participants were instructed to watch methamphetamine-related videos by VR and rate their level of craving after smelling and recalling the last time they engaged in drug use. Craving was assessed by visual analog scales (VAS), with 0 mm being no cravingand 100 mm representing most craving ever experienced for methamphetamine. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Attention bias towards methamphetamine | 2 weeks,4 weeks | A Chinese version of the MA addiction dot probe task (DPT) is used to evaluate the attention bias towards drugs. |
| cognitive function | 2 weeks,4 weeks | Chinese version of the CogState Battery was used to assess cognitive function. |
| response inhibition function | 2 weeks,4 weeks | stop signal task |
| reward-related function | 2 weeks,4 weeks | Delay Discounting Task |
Countries
China