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Fear Circuits in Panic Disorder: An Update
Peter Kyriakoulis1, Rafael Christophe da Rocha Freire2
1Department of Psychiatry, Positive Psychology Centre, Melbourne, VIC 3931, Australia.
Alpha Psychiatry
|July 9, 2025
Summary
This review clarifies the neurobiology of panic disorder (PD), detailing the brain
Area of Science:
- Neuroscience
- Psychiatry
- Neuroanatomy
Background:
- Animal models have advanced understanding of panic disorder (PD) mechanisms and etiology.
- Key neurobiological aspects of PD require further clarification.
- This review focuses on the neuroanatomical and pathophysiological basis of PD.
Purpose of the Study:
- To consolidate current knowledge on the neurobiology and neuroanatomy of panic disorder.
- To highlight recent advances in understanding the neural underpinnings of PD.
- To emphasize the role of fear circuits in PD pathophysiology.
Main Methods:
- A narrative review of recent literature on PD neurobiology and neuroanatomy.
- Focus on fear circuits, integrating findings from preclinical and clinical studies.
- Synthesis of information on implicated brain regions and their functions in PD.
Main Results:
- Detailed delineation of the fear circuitry implicated in panic disorder.
- Emphasis on the roles of the amygdala, thalamus, hippocampus, insula, and prefrontal cortex.
- These regions mediate pathological fear responses in PD.
Conclusions:
- Continued human research is crucial for refining PD fear circuitry models.
- Insights from human studies can guide the development of evidence-based therapies.
- Therapeutic strategies should aim to restore homeostasis disrupted by fear circuitry activation.
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