Post Traumatic Stress Disorder Affects Many Parts Of The Brain

1289 Words Mar 24th, 2016 null Page
Question 1 Post traumatic stress disorder affects many parts of the brain. The hippocampus is responsible for memory functions, helps an individual record and retrieve new memories and also helps distinguish between past and present memories. PTSD patients have reduced hippocampal volumes which loses the ability to discriminate between past and present experiences or interpret environmental contexts correctly. The hippocampus holds particular neural mechanisms which trigger extreme stress responses when confronted with environmental situations that only remotely resemble something from their traumatic past (Bremner, 2006). The amygdala processes emotions and is also linked to fear responses. PTSD patients exhibit hyperactivity in the amygdala in response to stimuli that are somehow connected to their traumatic experiences. They exhibit anxiety, panic, and extreme stress when they are shown photographs or presented with narratives of trauma victims whose experiences match theirs; or made to listen to sounds or words related to their traumatic encounters (Koenigs & Grafman, 2009). Overall, PTSD significantly decreases hippocampal volume and causes a developmental delay in motor, language, social and cognitive development (Farmer, 2009). PTSD can also impact the cortex and limbic system in the following ways; decreased cortex activity, increased limbic system sensitivity, decreased hippocampal volume, underdevelopment of the left brain, a smaller corpus callosum and…

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