Effect of CBT on Biased Semantic Network in Panic Disorder: A Multicenter fMRI Study Using Semantic Priming.
Yunbo Yang1, Ulrike Lueken1, Jan Richter1
1Department of Psychiatry and Psychotherapy and Marburg Center for Mind, Brain, and Behavior, Philipps-University Marburg, Marburg, Germany (Yang, Konrad, Straube, Kircher); Department of Psychiatry, Psychosomatics, and Psychotherapy, Center of Mental Health, University Hospital of Würzburg, University of Würzburg, Würzburg, Germany (Lueken, Herrmann, Deckert); Department of Psychology, Humboldt-Universität zu Berlin, Berlin, Germany (Lueken); Department of Biological and Clinical Psychology, University of Greifswald, Greifswald, Germany (Richter, Hamm); Department of Psychiatry and Psychotherapy, Campus Charité Mitte, Charité-Universitätsmedizin Berlin, Berlin, Germany (Wittmann, Ströhle); Department of Psychiatry, Agaplesion Diakonieklinikum Rotenburg (Wümme), Germany (Konrad); Department of Clinical Radiology, University of Münster, Münster, Germany (Pfleiderer); Christoph-Dornier-Foundation for Clinical Psychology, Bremen, Germany (Lang); Department of Psychiatry and Psychotherapy, University of Hamburg, Hamburg, Germany (Lang); Functional Imaging Unit, Institute for Diagnostic Radiology and Neuroradiology, University of Greifswald, Greifswald, Germany (Lotze); Department of Psychiatry, University of Münster, Münster, Germany (Arolt); and Institute of Clinical Psychology and Psychotherapy, Technische Universität Dresden, Dresden, Germany (Wittchen).
Cognitive-behavioral therapy (CBT) normalizes the brain's semantic network in panic disorder patients. This therapy reduces anxiety-related associations and alters neural activity in key brain regions, improving symptoms.
Area of Science:
- Neuroscience
- Psychiatry
- Cognitive Psychology
Background:
- Panic disorder is characterized by a pathologically enhanced semantic network linking anxiety-related concepts.
- Cognitive-behavioral therapy (CBT) is hypothesized to ameliorate panic disorder by modulating these semantic associations.
Purpose of the Study:
- To investigate the effects of CBT on the behavioral and neural correlates of the panic-related semantic network in patients with panic disorder.
- To examine how CBT impacts the processing of panic-related word associations.
Main Methods:
- A semantic priming paradigm using functional MRI (fMRI) was employed with patients with panic disorder and healthy controls.
- Participants completed assessments before and after exposure-based CBT, with neural activity measured during word-pair processing.
Main Results:
- At baseline, patients exhibited heightened relatedness and negative valence for panic-related word pairs, alongside faster lexical decisions and distinct neural activation patterns (suppressed in temporal cortices/insulae, enhanced in cingulate cortices).
- Following CBT, patients showed clinical improvement, reduced relatedness/valence ratings, and attenuated neural activation in the anterior cingulate cortex.
Conclusions:
- CBT normalizes the biased semantic network in panic disorder.
- Reduced anterior cingulate cortex activation post-CBT suggests a neural mechanism for therapeutic benefits in panic disorder.
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