Anxiety and Stress Flashcards
Define fear, anxiety and stress.
Fear – acute response to an actual stressor
Anxiety – towards a perceived/potential stressor (anticipation/unease)
Stress – feeling overwhelmed by situations, real or perceived
What are the main classifications of anxiety and fear disorders?
F40 – Phobic anxiety disorders
F41 – Other anxiety disorders (GAD)
F42 - Obsessive compulsive disorder
F43 – Reaction to severe stress
What CNS areas are involved in anxiety and fear?
Amygdala Higher cognitive centres Insula Other limbic system areas Association areas - frontal and parietal Sensory, motor and autonomic regions
What are the inputs to the amygdala?
Auditory Hormonal Proprioceptive Contexual Olfactory Visual
What are the outputs from the amygdala?
Behaviour
Integration
Assimilation
What happens if the periaqueductal gray area affected?
Freezing, conflict hypoalgesia
What are the mechanisms involved in anxiety disorders?
Inc CNS activity Inc neuronal synchrony Firing freq changes ? Morphological changes ? Genetic/epigenetic changes
What are the 2 types of treatment available for anxiety and stress related disorders?
1) Psychotherapy - behavioural therapy
2) Medication - Anxiolytics - only severe cases
What types are treatments are available for psychotherapy/ behavioural therapy?
Conscious avoidance relaxation courses hypnotherapy bibliotherapy EMDR – eye movement desensitisation and reprocessing
What types are medications are available for anxiety and stress related disorders?
Antidepressants: SSRI, SNRI, atypical Anxiolytics - buspirone Benzodiazepines Antiepileptics Other drugs: symptom reduction
What drugs are typically prescribed for GAD?
SSRI Sertraline
SNRI Venlafaxine
AED Pregabalin*
Anxiolytic Buspirone
What symptom blockers can you give for anxiety and stress related disorders?
β-blocker – Propanolol
What are the symptoms of GAD?
Worry Interrupted sleep Poor concentration Inc sensitivity to noise Sweating Dry mouth Urinary freq Hyperventilation Palpitations
What can you use to diagnose GAD?
DSM-V (Diagnostic handbook for mental health)
3 or more of following symptoms:
Restlessness or feeling keyed up or on edge
Being easily fatigued
Difficulty concentrating or mind going blank
Irritability
Muscle tension
Sleep disturbance
What can help cope with anxiety?
Pharmacological treatments
Relaxation-Mindfullness
Cognitive Behavioural Therapy
Thought dairy