Figure 1From: Cognitive function during early abstinence from opioid dependence: a comparison to age, gender, and verbal intelligence matched controls Correlation between fluid intelligence test performance and days of withdrawal among individuals with early abstinence from opioid dependence (N = 14) a Note: CFIT = Culture Fair Intelligence Test. a = One outlier performance (17 points) highly discordant to his other performance was dismissed due to poor collaboration during the CFIT administration.Back to article page