Metacognitive training for negative symptoms: Support for the cognitive model

Area of Science:

• Psychiatry
• Clinical Psychology
• Cognitive Neuroscience

Background:

• Negative symptoms of psychotic disorders represent a significant unmet clinical need.
• Metacognition Training (MCT) previously showed promise in reducing overall negative symptoms, stigma, and improving self-rated reflective ability in an uncontrolled study.
• Recent research suggests negative symptoms are best understood via a five-factor model, necessitating analysis of individual symptom items.

Purpose of the Study:

• To conduct an additional analysis of individual negative symptom items following Metacognition Training (MCT).
• To investigate the specific impact of MCT on distinct negative symptom dimensions, guided by the five-factor model of negative symptoms.
• To explore potential changes in intrapersonal and interpersonal cognitive processes.

Main Methods:

• Secondary analysis of data from a prior uncontrolled study on Metacognition Training (MCT).
• Examination of individual negative symptom items, rather than negative symptoms as a collective construct.
• Application of a five-factor model framework to analyze symptom changes.

Main Results:

• Metacognition Training (MCT) demonstrated significant improvements in specific negative symptom domains.
• Large effect sizes were observed for changes in sociality and blunted affect.
• These findings suggest MCT influences both intrapersonal and interpersonal (meta)cognitive processes.

Conclusions:

• Metacognition Training (MCT) specifically targets and improves sociality and blunted affect in individuals with negative symptoms of psychotic disorders.
• The intervention's effects on these specific symptom dimensions may be mediated by alterations in meta-cognitive processes.
• MCT presents a promising, targeted therapeutic approach for addressing specific negative symptom deficits in psychotic disorders.