Background & Objectives: Randomized controlled trials are the most reliable type of study to be able to compare different interventions in scientific research. The introduction of bias into the design and conduct of randomized controlled trials can seriously affect the accuracy of the results and led to the results be invalid. The aim of this study was to assess the bias in randomized controlle...

Objective: The aim of current research was to assess implicit and explicit memory bias to drug related stimuli in opiate Dependent, abstinent and normal Individuals. Method: Three groups including opiate Dependent, abstinent and normal Individuals (n=25) were selected by available sampling method. After matching on the base of age, education level and type of substance use all participants asse...

Objectives A recent method that modifies the intrusive memories is cognitive bias modification. This study aimed to investigate and compare the three none-attendance therapies of standardized cognitive bias modification, cognitive bias modification based self-generation and cognitive-behavior training. Methods According to inclusion and exclusion criteria, a total of 51 participants were selec...

Background & Aim: Inability to control drug use is considered a core aspect of drug dependency. Part of this inability is due to cognitive biases resulting from individuals’ constant usage of drugs. The aim of the present study was to compare the effectiveness of cognitive bias modification in real and placebo conditions on attentional bias and approach bias in opium abusers. Methods: This stud...