Threat detection
Rapid tagging of cues that signal danger.
Anxiety systems evolved to keep organisms alive; disorders arise when prediction and avoidance become costly defaults.
Educational neuroscience context only — not medical advice, diagnosis or a substitute for emergency or clinical care. If you are in crisis, seek local emergency services or a licensed clinician.
Pillars
Worry & rumination
Verbal loops that maintain arousal without resolution.
Avoidance learning
Short-term relief that prevents safety learning.
Regulation & care
Prefrontal control, exposure and evidence-based treatment.
Key facts
High prevalence
Among the most common mental disorders worldwide.
Amygdala threat circuitry
Central node for rapid threat salience.
Extinction ≠ forgetting
New safety memories compete with threat memories.
CBT / exposure
First-line psychological approaches for many anxiety disorders.
Heterogeneity
Panic, social, GAD and phobias share and diverge.
Medical disclaimer
Educational neuroscience context only — not medical advice, diagnosis or a substitute for emergency or clinical care. If you are in crisis, seek local emergency services or a licensed clinician.
Pair with Amygdala, Stress, PTSD and Emotion neighbours — and seek care for personal symptoms.
Sources & research
- Anxiety disordersPrimer on anxiety disorders and mechanisms.DOI
- Using Neuroscience to Help Understand Fear and Anxiety: A Two-System FrameworkTwo-system framing of fear vs anxiety circuits.DOI
- Epidemiology of anxiety disorders in the 21st centuryEpidemiology of anxiety disorders.DOI
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