Results (exp 2)

• 5. Again, the variability was on no-go trials, low delayers committed more false alarms than high delayers but the difference was not significant.
• 6. There were three main effects on the go-no go trials.

  • Greater activation of the RIGHT INTERIOR FRONTAL CORTEX. The participants made a correct response on a nogo trial.
  • Greater activation of the primary motor cortex when participants made a correct response on a go trial.
  • Greater activation of the left cerebellum when participants made a correct response on a go trial.
• 7. There were two main differences between high and low delayers.

  • On nogo trials low delayers had reduced activity (relative to high delayers) in the RIGHT INFERIOR FRONTAL CORTEX.
  • On nogo trials with a happy face low delayers had more activity (relative to high delayers) in the ventral striatum.