PSYC 3406 Lecture 7: Lecture 7 - PTSD cont. and Depression
6 Jun 2018
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● CRF/CRH is neuropeptide that has to do with stress and addiction
Why PTSD Victims Might be Resistant to Getting Help
● Sometimes people expect they can handle it on their own
● Blame themselves
● Too painful to discuss
● Avoid event altogether
● PTSD can make some people feel isolated making it hard for them to get help
● Don’t always make connection between event and depression or anxiety
During a Traumatic Event
● Norepinephrine → mobilize fear, flight response, sympathetic action, consolidating
memory
○ Too much = hypervigilance, autonomic arousal, flashbacks and intrusive
memories
● Serotonin → self defence, rage, attenuation of fear
○ Too little = aggression, violence, impulsivity, depression, anxiety
● PTSD victims - switch is stuck on
Understanding Depression
What Causes Depression?
● Family history
○ Family members may increase risk
○ Deficiencies of certain chemicals in brain may lead to depression
● Major life changes
○ Negative or stressful events (death of a loved one or job changes)
● Major illnesses such as heart attack, stroke, cancer
● Medications used alone or in combination can have depression like side effects
● Use of alcohol or other drugs can lead to or worsen depression
● For no apparent reason at all
Symptoms of Depression
● Vary from person to person
● Key signs are loss of interest in things person enjoys, pervasive sadness and/or
irritability
● Changes in feelings
○ Feeling empty
○ Inability to enjoy
○ Apathy
○ Hopelessness
○ Loss of sexual desire
○ Loss of warm feelings for family and friends
○ Feeling of self blame or guilt
○ Loss of self esteem
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Document Summary
Crf/crh is neuropeptide that has to do with stress and addiction. Why ptsd victims might be resistant to getting help. Sometimes people expect they can handle it on their own. Ptsd can make some people feel isolated making it hard for them to get help. Don"t always make connection between event and depression or anxiety. Norepinephrine mobilize fear, flight response, sympathetic action, consolidating memory. Too much = hypervigilance, autonomic arousal, flashbacks and intrusive memories. Serotonin self defence, rage, attenuation of fear. Too little = aggression, violence, impulsivity, depression, anxiety. Ptsd victims - switch is stuck on. Deficiencies of certain chemicals in brain may lead to depression. Negative or stressful events (death of a loved one or job changes) Major illnesses such as heart attack, stroke, cancer. Medications used alone or in combination can have depression like side effects. Use of alcohol or other drugs can lead to or worsen depression.
