A new study provides class IV evidence that addition of cognitive behavioural therapy (CBT) to standard treatment reduces the severity of impulse control behaviours (ICB) in patients with Parkinson disease (PD). In the trial, which compared ICB outcomes in 27 patients given CBT with 17 individuals who received standard treatment alone, CBT improved symptom severity, neuropsychiatric disturbances, and anxiety and depression. The benefits of CBT did not, however, lead to alleviation of care-giver burden.