Patients with schizophrenia at different stages show varied deficits in discriminating rewarding values

Anhedonia and amotivation are key features of negative symptoms observed in patients with schizophrenia. In particular, amotivation refers to the diminished volition to initiate or maintain goal-directed behavior that may be underpinned by different impairments of reward valuation.

source https://medicalxpress.com/news/2021-08-patients-schizophrenia-stages-varied-deficits.html