Contemporary Understanding of the Pathophysiology of Negative Symptoms of Schizophrenia: Implications for Psychosocial Treatments

Bibliographic Details
Title: Contemporary Understanding of the Pathophysiology of Negative Symptoms of Schizophrenia: Implications for Psychosocial Treatments
Authors: Indrit Bègue, Stefan Kaiser, Matthias Kirschner
Source: Psychosocial Approaches to Negative Symptoms in Psychosis ISBN: 0197676790
Publisher Information: Oxford University PressNew York, 2025.
Publication Year: 2025
Description: Negative symptoms of schizophrenia map onto at least two dimensions with partly distinct neurobiological substrates: (1) apathy, entailing a loss of motivation and pleasure; and (2) diminished expression, corresponding to an impairment of affective expression and speech production. In this chapter, we review evidence for cognitive-behavioral and neural mechanisms related to negative symptoms through the lens of their translational psychosocial perspective. With respect to apathy, which is widely defined as impairments of goal-directed behavior, there is evidence of deficits in motivational mechanisms (such as reward anticipation, reward learning, effort-based decision-making) and cognitive functions related to option generation and metacognition. Regarding diminished expression, a conceptual understanding of the underlying neurobiology is less developed. Current studies point to deficits in emotion expression, emotion perception, and limitation of cognitive resources for speech production and fluency. This chapter will focus on these mechanisms and will discuss them within the context of their relevance for psychosocial interventions.
Document Type: Part of book or chapter of book
Language: English
DOI: 10.1093/oso/9780197676790.003.0003
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  Data: Contemporary Understanding of the Pathophysiology of Negative Symptoms of Schizophrenia: Implications for Psychosocial Treatments
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  Data: <searchLink fieldCode="AR" term="%22Indrit+Bègue%22">Indrit Bègue</searchLink><br /><searchLink fieldCode="AR" term="%22Stefan+Kaiser%22">Stefan Kaiser</searchLink><br /><searchLink fieldCode="AR" term="%22Matthias+Kirschner%22">Matthias Kirschner</searchLink>
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  Data: Psychosocial Approaches to Negative Symptoms in Psychosis ISBN: 0197676790
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  Data: Oxford University PressNew York, 2025.
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  Data: Negative symptoms of schizophrenia map onto at least two dimensions with partly distinct neurobiological substrates: (1) apathy, entailing a loss of motivation and pleasure; and (2) diminished expression, corresponding to an impairment of affective expression and speech production. In this chapter, we review evidence for cognitive-behavioral and neural mechanisms related to negative symptoms through the lens of their translational psychosocial perspective. With respect to apathy, which is widely defined as impairments of goal-directed behavior, there is evidence of deficits in motivational mechanisms (such as reward anticipation, reward learning, effort-based decision-making) and cognitive functions related to option generation and metacognition. Regarding diminished expression, a conceptual understanding of the underlying neurobiology is less developed. Current studies point to deficits in emotion expression, emotion perception, and limitation of cognitive resources for speech production and fluency. This chapter will focus on these mechanisms and will discuss them within the context of their relevance for psychosocial interventions.
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