Anxiety Disorders & Depression: Biological Models and Treatments

Anxiety disorders

9

Up to 30%

<p>Twice that of mood disorders</p> Signup and view all the answers

<p>Rapid irregular heartbeat, sweating, trembling, shortness of breath, chest pain, nausea, dizziness, dry mouth</p> Signup and view all the answers

<p>Activation of the Sympathetic Autonomic Nervous System (fight-or-flight response)</p> Signup and view all the answers

<p>The amygdala, which influences the HPA axis and triggers the fear response</p> Signup and view all the answers

<p>The amygdala is critical in the fear response, receiving sensory information and activating the hypothalamus and the sympathetic autonomic nervous system (ANS)</p> Signup and view all the answers

<p>Through recording studies in mice and functional MRI studies in humans</p> Signup and view all the answers

<p>The amygdala is activated</p> Signup and view all the answers

<p>It decides whether a stimulus is stressful or not, and activates the sympathetic nervous system (fight or flight)</p> Signup and view all the answers

<p>It involves the release of adrenaline/noradrenaline and cortisol, increasing heart rate, breathing, and blood pressure, contributing to the physical symptoms of anxiety and panic attacks</p> Signup and view all the answers

<p>Excessive worry, restlessness, trouble sleeping</p> Signup and view all the answers

<p>A fear of situations where the person perceives their environment to be unsafe</p> Signup and view all the answers

<p>Specific phobia, social anxiety disorder, generalised anxiety disorder, panic disorder, agoraphobia</p> Signup and view all the answers

<p>Specific phobia, social anxiety, and most other anxiety disorders can trigger panic attacks, or they can occur spontaneously (panic disorder)</p> Signup and view all the answers