Brain Mechanism and Intervention of Executive-control Dysfunction Among Substance Dependents
Brain Mechanism and Intervention of Executive-control Dysfunction Caused by Impaired Prefrontal-ventral Striatum Synchronization Among Substance Dependents
Studieoversigt
Status
Status
Betingelser
Betingelser
Intervention / Behandling
Intervention / Behandling
Detaljeret beskrivelse
Undersøgelsestype
Undersøgelsestype
Tilmelding (Forventet)
Tilmelding
Fase
Fase
- Ikke anvendelig
Kontakter og lokationer
Studiekontakt
Studiekontakt
- Navn: Jiang Du
- Telefonnummer: 021-64906315
- E-mail: dujiangdou@163.com
Studiesteder
-
-
Shanghai
-
Shanghai, Shanghai, Kina, 200000
- Shanghai Mental Health Center
-
-
Deltagelseskriterier
Berettigelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
Tager imod sunde frivillige
Køn, der er berettiget til at studere
Beskrivelse
Inclusion Criteria:
- Aged 18-60, male or female, with 9 or more years of education, and able to complete questionnaire evaluation and behavioral tests
- Meet DSM-5 diagnostic criteria for amphetamine-type substance addiction or alcohol addiction
- Have used amphetamine or alcohol for at least one year (at least once a week)
- Normal vision and hearing, or within the normal range after correction
- Agree to cooperate in the follow-up evaluation
- No metal implantation in the head, no history of nerve problems or head injury, and no skin sensitivity
Exclusion Criteria:
- Have severe cognitive impairment, such as a history of head trauma, cerebrovascular disease, epilepsy, etc.
- Have used drugs promoting cognitive function in the last 6 months
- Have impaired intelligence (IQ<70)
- Abuse or dependence of other psychoactive substances (except nicotine) in the last 5 years
Studieplan
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
- Primært formål: Behandling
- Tildeling: Randomiseret
- Interventionel model: Parallel tildeling
- Maskning: Dobbelt
Antal våben
Våben og indgreb
Deltagergruppe / ArmDeltagergruppe / Arm |
Intervention / BehandlingIntervention / Behandling |
|---|---|
|
Ingen indgriben: Healthy control group
No intervention is conducted in the healthy control group.
|
|
|
Eksperimentel: Intervention group of amphetamine addiction
A 20-minute tACS intervention of real-stimulus is conducted twice a day for a total of 10 days in the intervention group of amphetamine addiction.
|
The adhesive electrodes were placed at F3 and F4 positions of the 64-bit EEG caps of the 10-20 system, corresponding to bilateral prefrontal lobes respectively.
Before the intervention, the individual alpha frequency (IAF) of the subjects was measured according to the average peak value of α waves at dorsolateral prefrontal cortex in the closed state.
Then an alternating current at θ frequency (θ = IAF - 5Hz) was applied to each subject based on its IAF value.
The amplitude of stimulation was increased with a step of 20μA starting from 0. When the subjects had a slight prickling sensation or optical illusion, the stimulation current was decreased with a step of 20μA until the sensation disappeared.
The current value at this time was used as the stimulation current of the subjects.
|
|
Sham-komparator: Control group of amphetamine addiction
A 20-minute tACS intervention of sham-stimulus is conducted twice a day for a total of 10 days in the control group of amphetamine addiction.
|
The adhesive electrodes were placed at F3 and F4 positions of the 64-bit EEG caps of the 10-20 system, corresponding to bilateral prefrontal lobes respectively.
The actual stimulation waveform was just implemented in the first 60 s (or more longer) and then faded out.
|
|
Eksperimentel: Intervention group of alcohol addiction
A 20-minute tACS intervention of real-stimulus is conducted twice a day for a total of 10 days in the intervention group of alcohol addiction.
|
The adhesive electrodes were placed at F3 and F4 positions of the 64-bit EEG caps of the 10-20 system, corresponding to bilateral prefrontal lobes respectively.
Before the intervention, the individual alpha frequency (IAF) of the subjects was measured according to the average peak value of α waves at dorsolateral prefrontal cortex in the closed state.
Then an alternating current at θ frequency (θ = IAF - 5Hz) was applied to each subject based on its IAF value.
The amplitude of stimulation was increased with a step of 20μA starting from 0. When the subjects had a slight prickling sensation or optical illusion, the stimulation current was decreased with a step of 20μA until the sensation disappeared.
The current value at this time was used as the stimulation current of the subjects.
|
|
Sham-komparator: Control group of alcohol addiction
A 20-minute tACS intervention of sham-stimulus is conducted twice a day for a total of 10 days in the control group of alcohol addiction.
|
The adhesive electrodes were placed at F3 and F4 positions of the 64-bit EEG caps of the 10-20 system, corresponding to bilateral prefrontal lobes respectively.
The actual stimulation waveform was just implemented in the first 60 s (or more longer) and then faded out.
|
Hvad måler undersøgelsen?
Primære resultatmål
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
|
The change of inhibitory control ability
Tidsramme: baseline, immediately after the intervention, one month after the intervention, three months after the intervention
|
The change of inhibitory control ability will be reflected by participants' performance in the Go/No Go task.
|
baseline, immediately after the intervention, one month after the intervention, three months after the intervention
|
|
The change of theta(θ) phase synchronicity
Tidsramme: baseline, immediately after the intervention, one month after the intervention, three months after the intervention
|
The change of θ phase synchronicity in the prefrontal - ventral striatum pathway in amphetamine addicts and alcohol addicts will be measured by EEG.
|
baseline, immediately after the intervention, one month after the intervention, three months after the intervention
|
|
The change of theta-gamma phase amplitude coupling(θ-γ PAC)
Tidsramme: baseline, immediately after the intervention, one month after the intervention, three months after the intervention
|
The change of θ-γ PAC in the prefrontal - ventral striatum pathway in amphetamine addicts and alcohol addicts will be measured by EEG.
|
baseline, immediately after the intervention, one month after the intervention, three months after the intervention
|
Sekundære resultatmål
Sekundære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
|
The change of working memory
Tidsramme: baseline, immediately after the intervention, one month after the intervention, three months after the intervention
|
The change of working memory will be measured by the two-back task.
|
baseline, immediately after the intervention, one month after the intervention, three months after the intervention
|
|
DA metabolic rate
Tidsramme: baseline
|
DA metabolism was measured by Positron Emission Computed Tomography
|
baseline
|
|
The change of decision-making ability
Tidsramme: baseline, immediately after the intervention, one month after the intervention, three months after the intervention
|
The change of decision-making ability will be measured by the Balloon Analog Risk Task.
|
baseline, immediately after the intervention, one month after the intervention, three months after the intervention
|
Andre resultatmål
Andre resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
|
The The change of depression
Tidsramme: baseline, immediately after the intervention, one month after the intervention, three months after the intervention
|
Depression will be measured by the Patient Health Questionnaire-9(PHQ-9).
The total score of PHQ-9 ranged from 0 to 27, in which higher scores mean a higher level of depression.
|
baseline, immediately after the intervention, one month after the intervention, three months after the intervention
|
|
The change of anxiety
Tidsramme: baseline, immediately after the intervention, one month after the intervention, three months after the intervention
|
Anxiety will be measured by the questionnaire of Generalized Anxiety Disorder(GAD-7).
The total score of GAD-7 ranged from 0 to 21, in which higher scores mean a higher level of anxiety.
|
baseline, immediately after the intervention, one month after the intervention, three months after the intervention
|
Samarbejdspartnere og efterforskere
Sponsor
Sponsor
Datoer for undersøgelser
Studer store datoer
Studiestart (Forventet)
Studiestart
Primær færdiggørelse (Forventet)
Primær færdiggørelse
Studieafslutning (Forventet)
Studieafslutning
Datoer for studieregistrering
Først indsendt
Først indsendt
Først indsendt, der opfyldte QC-kriterier
Først indsendt, der opfyldte QC-kriterier
Først opslået (Faktiske)
Først opslået
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Faktiske)
Sidste opdatering sendt
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidst verificeret
Sidst verificeret
Mere information
Begreber relateret til denne undersøgelse
Nøgleord
Yderligere relevante MeSH-vilkår
Andre undersøgelses-id-numre
Andre undersøgelses-id-numre
- JDu-010
Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter
Studerer et amerikansk FDA-reguleret lægemiddelprodukt
Studerer et amerikansk FDA-reguleret enhedsprodukt
Disse oplysninger blev hentet direkte fra webstedet clinicaltrials.gov uden ændringer. Hvis du har nogen anmodninger om at ændre, fjerne eller opdatere dine undersøgelsesoplysninger, bedes du kontakte register@clinicaltrials.gov. Så snart en ændring er implementeret på clinicaltrials.gov, vil denne også blive opdateret automatisk på vores hjemmeside .