PSY 111 Lecture Notes - Lecture 29: Posttraumatic Stress Disorder, Racing Thoughts, Seasonal Affective Disorder
Document Summary
Chronic physiological arousal, recurrent unwanted thoughts or images of the trauma, and avoidance of things that call the traumatic event to mind. After undergoing trauma, many people exhibit some symptoms of ptsd, but only some people develop the disorder. Not everyone that experiences that trauma will get ptsd. Example twins one went to war the. People who have ptsd have a smaller hippocampus volume is smaller. Having a smaller hippocampus might dispose you to having ptsd or developing it easier. Major depressive disorder (depression): severely depressed mood and/or inability to experience pleasure that lasts 2 or more weeks and is accompanied by feelings of worthlessness, lethargy, and sleep and appetite disturbance. 18% of people experience depression at some point (more common in women) Persistent depressive disorder: long lasting depression, persisting for at least 2 years. Seasonal affective disorder: recurrent depressive episodes in a seasonal pattern (often winter) (among other things) depression can cause changes in:
