Validation of the Neuropsychiatric Fluctuations Scale (EFN-VALID))

Anxiety, sadness, lack of energy and motivation, fatigue and pain are common during the off-medication condition, whereas euphoria, well-being, impulse control disorders, behavioral addictions, mania, and psychosis might occur during the on-medication condition. Early diagnosis of NpsyF is crucial for their holistic management. Unfortunately, NpsyF are often under-recognized by patients or misdiagnosed by physicians due to the lack of specific assessment tools. The NFS is composed of 20 items among which ten measure the "ON neuropsychological state" and ten, the "OFF neuropsychological state". It provides two sub-scores (one ON and one OFF) with a maximal total score of 30.