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A signal detection analysis of executive control performance among adolescent inhalant and cannabis users
Michael J Takagi1, Dan I Lubman, Susan M Cotton
11Department of Psychiatry, Melbourne Neuropsychiatry Centre, University of Melbourne , Melbourne, Victoria , Australia.
Background:
Inhalant users have multiple comorbid issues (e.g., polydrug use) that complicate identifying inhalant-specific cognitive deficits.
Objectives:
The aim of the present study was to use signal detection theory to identify inhalant-specific differences in executive control.
Methods:
We examined three well-matched groups: 19 inhalant users, 19 cannabis users, and 19 controls using Stroop and Go/No-Go tasks.
Results:
Inhalant users demonstrated significantly lower d-prime scores relative to controls, but not cannabis users, on both tasks, suggesting possible executive deficits relative to controls. CONCLUSIONS/IMPORTANCE: The results of this study raise questions regarding inhalant toxicity and the vulnerability of the adolescent brain to drugs of abuse.
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