Effort-Based Decision Making in Schizophrenia

Effort-based decision making (EBDM) refers to the process by which individuals weigh the costs of physical or cognitive exertion against prospective rewards, guiding choices in everyday behaviour. In schizophrenia, deficits in EBDM are closely linked to negative symptoms—particularly avolition—resulting in diminished goal-directed activity, social withdrawal and impaired functional recovery. Neuroimaging and behavioural studies implicate dysfunction within dopamine-rich circuits, notably the ventral striatum and prefrontal regions, which mediate reward valuation, effort allocation and action selection. Cognitive impairments and maladaptive beliefs further compound motivational disturbances, leading to an overall reduction in willingness to expend effort even when rewards are apparent. Understanding the interplay between clinical symptoms, cognitive capacity and neural substrates is crucial for developing targeted interventions that restore motivation and enhance real-world functioning.

Research from Nature Portfolio

Recent studies in individuals with subclinical psychotic features reveal that altered effort–reward trade-offs emerge even before clinical onset. High levels of subclinical symptoms are associated with flatter temporal discounting curves and reduced willingness to exert effort for food and monetary rewards under high-effort conditions. These findings suggest that early vulnerabilities in reward and effort computations may serve as markers for psychosis risk and provide a framework for examining neural mechanisms underpinning motivational deficits.

Effort-Based Decision Making in Schizophrenia publication trend

The graph below shows the total number of articles in effort-based decision making in schizophrenia across all publications each year (not limited to Nature Index journals).

Technical terms

Effort-Based Decision Making (EBDM): the process of weighing potential rewards against physical or cognitive effort to guide goal-directed behaviour.

Negative Symptoms: a cluster of deficits in schizophrenia including diminished motivation, reduced emotional expression, and social withdrawal.

Avolition: a core negative symptom characterised by reduced initiation and persistence of goal-directed activities.

Temporal Discounting: the tendency to devalue rewards as the delay to their receipt increases.

Reward Salience: the perceptual and motivational prominence of a reward cue, influencing effort allocation.

References

1. Mechanisms Underlying Motivational Dysfunction in Schizophrenia. Frontiers in Behavioral Neuroscience (2021).
2. Understanding the Association Between Negative Symptoms and Performance on Effort-Based Decision-Making Tasks: The Importance of Defeatist Performance Beliefs. Schizophrenia Bulletin (2017).
3. Avolition as the core negative symptom in schizophrenia: relevance to pharmacological treatment development. Schizophrenia (2021).
4. Temporal and Effort cost Decision-making in Healthy Individuals with Subclinical Psychotic Symptoms. Scientific Reports (2019).
5. Negative symptoms and cognitive impairment are associated with distinct motivational deficits in treatment resistant schizophrenia. Molecular Psychiatry (2023).
6. Impaired Effort Allocation in Patients with Recent-Onset Schizophrenia and Its Relevance to Negative Symptoms Assessments and Persistent Negative Symptoms. Journal of Clinical Medicine (2022).
7. The effect of salience of rewards on effort-based decision making in psychotic disorders. BMC Psychiatry (2022).