Table 1.

An overview of the outcome measures that participants need to complete for each session.

Instrument	Aim	Day of rehabilitation
		1	2	3	4	5a
Baseline demographic and clinical information questionnaire	Baseline characteristic of participants	✓
Addiction Severity Index questionnaire	Details about substance use	✓
Severity of Substance Dependence questionnaire	Assessment of severity of psychological dependence	✓
Short-Form 12	Baseline health status	✓
Attention bias modification assessment task	Measurement of attentional biases	✓b	✓	✓	✓	✓
Attention bias modification intervention task	Retraining of attentional biases	✓	✓	✓	✓	✓
Visual analogue scale for craving	Assessment of cravings	✓c	✓c	✓c	✓c	✓c
Perspective questionnaire	Acceptability of intervention			✓

^aParticipants will undertake a maximum of 5 sessions considering that the study will not be conducted on weekends.

^bThe attention bias modification assessment task will be completed twice on the first day: first assessment will provide information pertaining to the baseline attentional biases; second assessment will assess for the change in attentional biases following the first intervention.

^cStart and end of each session.