For Parkinson’s disease (PD) patients whose symptoms cannot be controlled by medication, ‘Deep brain stimulation’ (DBS) may be the only hope. While DBS is generally considered to be safe, side effects related to the stimulation may occur in some cases, including numbness or tingling sensations, muscle tightness, speech or balance problems and unwanted mood changes. The IMPACT project has set out to counter these side-effects by bringing DBS to the next level.