Mean Reaction Times and Response Scores for Emotion Processing Tasks.

<p>Effect Sizes for Group Differences are also shown.</p

Statistical Analysis of P3 Mean Amplitudes across Electrode Sites.

<p>Statistical Analysis of P3 Mean Amplitudes across Electrode Sites.</p

Grand average ERPs for controls and users collapsed over task and emotion for analyzed electrodes.

<p>Significant group differences at α = .05 with Bonferroni correction for planned multiple comparisons are signaled in black.</p

Averaged ERP responses for non-users and users for the four different stimulus emotions, happy, neutral, angry & fearful for representative electrode PO8.

<p>Averaged ERP responses for non-users and users for the four different stimulus emotions, happy, neutral, angry & fearful for representative electrode PO8.</p

Averaged ERP responses for controls and users by explicit, implicit and empathic conditions for representative fronto-central and centro-parietal electrodes.

<p>Significant between-group differences at α = .05 with Bonferroni correction for planned multiple comparisons are signaled in black.</p

Averaged P3 Amplitudes (in microvolts) of Controls and Cannabis Users from Emotion Processing of Neutral, Happy, Angry, and Fearful Expressions.

<p>Averaged P3 Amplitudes (in microvolts) of Controls and Cannabis Users from Emotion Processing of Neutral, Happy, Angry, and Fearful Expressions.</p

Summary of cannabis use reported on the Recreational Cannabis Use Evaluation (R-CUE), showing group frequencies and percentages for each response option.

<p>Summary of cannabis use reported on the Recreational Cannabis Use Evaluation (R-CUE), showing group frequencies and percentages for each response option.</p

Performance for implicit, explicit and empathy tasks between groups in % correct and reaction time in milliseconds with error bars representing SEM.

<p>Performance for implicit, explicit and empathy tasks between groups in % correct and reaction time in milliseconds with error bars representing SEM.</p

Statistical Analysis of Reaction Time and Response Scores Differences by Group and Emotion for Emotion Processing Tasks.

<p>Statistical Analysis of Reaction Time and Response Scores Differences by Group and Emotion for Emotion Processing Tasks.</p

Mean empathy ratings for all four emotional expressions, neutral, happy, angry & fearful with error bars representing SEM.

<p>Mean empathy ratings for all four emotional expressions, neutral, happy, angry & fearful with error bars representing SEM.</p