Clinical Research Directory

Inclusion Criteria: * Individuals aged between 18 and 55 years, irrespective of gender, having completed a minimum of 9 years of education or capable of effectively cooperating in questionnaire and behavioral task evaluations. * Meet the diagnostic criteria set forth by the DSM-5 concerning the severity of amphetamine-type substance addiction. * A history of utilizing amphetamine-type substances for a duration not less than one year, with a frequency of use being at least once per week. * Consent to actively cooperate in the completion of subsequent follow-up assessments. Exclusion Criteria: * Severe cognitive functional impairments manifested through a history of head trauma, cerebrovascular diseases, epilepsy, etc., or usage of cognitive enhancement drugs in the past 6 months; an intellectual disability with an IQ score less than 70. * A diagnosis of schizophrenia or other severe mental illnesses as per the DSM-5 criteria. * Abuse or dependence on other psychoactive substances (excluding nicotine) within the past 5 years. * Severe organic diseases that might compromise study participation. * Contraindications to tACS, such as a history of epileptic seizures or the presence of metallic implants in proximity to the head.