Negative Symptoms: Reduced Pleasure

Reduced pleasure is called anhedonia. In schizophrenia, difficulty anticipating enjoyment can be more pronounced than an inability to enjoy something while it happens. Someone may predict that a meal or visit will be unrewarding, then find it pleasant once engaged. This difference helps explain why enjoyment and participation do not always move together.

Negative symptoms describe reductions in ordinary motivation, expression and engagement. The recognised domains are avolition, anhedonia, asociality, alogia and blunted affect. They differ from positive symptoms, such as hallucinations, and can remain important even when psychosis is less prominent or has improved with treatment.

Assessment explores past and present interests, expected pleasure and actual experience. Depression, anxiety, sedation and social circumstances can also reduce enjoyment. The aim is to identify meaningful opportunities rather than prescribe activities that others think should be pleasurable. Recording how an activity actually felt can help compare expectation with experience. Support should remain flexible because preferences differ, and a lack of visible enthusiasm does not prove that the person feels nothing. Past enjoyment and present expectations are therefore worth assessing separately.

Enjoyment can be sampled close to an activity rather than reconstructed much later. Remembering pleasure and anticipating it involve processes beyond the moment itself. Comparing these stages may reveal retained enjoyment that a general questionnaire misses. This helps identify whether the main barrier concerns experiencing reward, expecting it or using past experience to guide future activity.

Further reading: Research record 30208377; Research record 35020936.