NROSCI 0081 Lecture Notes - Lecture 25: Social Anxiety Disorder, Posttraumatic Stress Disorder, Adrenal Gland
Document Summary
Stress: bodily response to stressor can be maladaptive or adaptive. Anxiety: negative response to stress; fear about future; can last a long time: anxiety disorder: inappropriate and irrational anxiety that interferes with daily functioning. Fear: emotional response to clear and current danger; short lived: thalamus cortex (sensory info) and amygdala (emotion) Pituitary gland recognizes crf and releases other hormones stimulates adrenal gland to create cortisol. Only crf from the hypothalamus is considered part of the hpa axis: norepinephrine. Crf released from amygdala to brainstem causes ne release. Crf from amygdala to cortex contributes to other factors associated with anxiety: gaba. Fewer gaba receptors in people with anxiety disorders: serotonin. Antidepressants sometimes reduce the symptoms of anxiety. Early life stressors future development of anxiety disorders. Anxiety: gad excessive anxiety and worry. Restlessness, irrita(cid:271)ility, fatigue, (cid:272)an"t (cid:272)on(cid:272)entrate, tension: ocd obsessions that are recurrent and persistent; compulsions in response to obsession, ptsd traumatic event response. Avoidance or anxious anticipation significant interference.
