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Table 1.

Characteristics of research participants.

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Table 2.

Comparison of striatal BPND and WCST performance between MA users and controls (n = 18 each).

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Table 2 Expand

Fig 1.

Relationships between striatal D2/D3 receptor availability and executive function measures.

Regression lines illustrate correlations between striatal dopamine D2/D3 receptor availability (indexed by [18F]fallypride BPND) and proportions of trials registered as non-perseverative (top row) and perseverative (bottom row) errors in methamphetamine (MA) users and non-user controls. Pearson product-moment correlation coefficients are shown (r values).

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Fig 1 Expand

Fig 2.

Relationships between D2/D3 receptor availability in striatal subregions and executive function measures.

Regression lines illustrate correlations between striatal dopamine D2/D3 receptor availability (indexed by [18F]fallypride BPND) and proportions of trials registered as non-perseverative and perseverative errors in the striatal functional subdivisions of methamphetamine (MA) users (bottom row) and non-user controls (top row). Pearson product-moment correlation coefficients are shown (r values).

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Fig 2 Expand