V - Anxiety Disorders (Pt II) Flashcards
Generalized Anxiety Disorder
Chronic, excessive, unreasonable anxiety about many aspects of life. More days than not for 6 months Must be experienced as difficult to control. Worrying cannot be exclusively related to another disorder, such as worry over having a panic attack.
GAD Individual/Personality Characteristics
Future-oriented mood state of anxious apprehension, tension, uneasiness. Vigilance for threat, engagement in avoidance activities such as procrastinating and checking, constant worry -> discouragement, difficulties making decisions, rarely experience present moment.
GAD co-occurence with other Axis I
Often co-occurs w/ other anxiety disorders, PTSD, Mood Disorders, substance abuse
GAD Psychological Factors
Psychoanalytic - conflict between id and ego. Perceptions of uncontrollability. Need mastery - history of control over environment. Worry plays central role and has negative consequences. Cognitive biases for threatening cues.
GAD Biological Causal Factors
Modestly heritable. GABA, serotonin, norepinephrine all play role. Corticotropin-releasing hormone system. GAD and MDD link. Neurobiological differences between anxiety and panic.
GAD Treatments
Medications include Anxiolytics (benzodiazepines), Antidepressants. Cognitive-behavioral therapy increasingly effective, but one of the hardest anxiety disorders to treat.
OCD and Related Disorders (5)
(1) OCD
(2) Hoarding
(3) Excoriation
(4) Body Dysmorphic Disorder
(5) Trichotillomania
Obsessive-Compulsive Disorder
Recurring intrusive thoughts, impulses, images - disturbing, inappropriate, uncontrollable. Usually accompanied by compulsive behaviors to neutralize obsessive thoughts or prevent dreaded event/situation
OCD - Most common obsessions
Contamination, fear of harming self or others, lack of symmetry, pathological doubt.
OCD - Most common compulsions
Cleaning, checking, repeating, ordering/arranging, counting
OCD Comorbidity
Frequently comorbid w/ anxiety disorders, mood disorders. Co-occurs with body dysmorphic disorder sometimes.
Question - must answer
Is OCD considered an anxiety disorder? DSM IV vs V classification?
OCD Psychological causal factors
Learned behavior - Mowrer’s two-process theory of avoidance learning. Classical conditioning, reinforcement. Concerned with preparedness. Cognitive: thought suppression may increase frequency; inflated sense of responsibility; cognitive biases and distortions
OCD Biological Causal Factors
Moderately heritable. Abnormalities in function may include cortico-basal-ganglionic thalamic circuit. Serotonin
Behavioral/cognitive behavioral treatments for OCD
Exposure and response prevention most effective. Gradually move through hierarchy of stimuli - start small.
Medications for OCD
Meds that affect serotonin helpful in some individual, but relapse rates are high when meds are continued
Surgery for OCD
Neurosurgical techniques used for intractable OCD
Body Dysmorphic Disorder
Previously classified as Somatoform Disorder. Obsessed with imagined or actual flaw in appearance so far to believe they are disfigured. Compulsive checking. Avoidance of behaviors so people will not see defect. Reassurance only provides temporary belief.
BDD vs OCD and ED
BDD more convinced that obsessive beliefs are accurate than OCD, but serotonin also involved. BDD look normal but distressed; ED/AN emaciated and satisfied with this aspect of appearance.
BDD Biopsychosocial causal factors
Serotonin, PFC deficits. Biased attention and interpretation about body. Family emphasis on attractiveness, teasing.
BDD treatment
Antidepressants - SSRIs. CBT - exposure/response prevention - prevent checking. Wear something that highlights defect.
Hoarding Disorder
Acquire and fail to discard many possessions of dubious value. Often more disabled in terms of work, social life. Risk for fire, falling, sanitation, health problems. Medications and behavioral therapy less effective than OCD. May be neurologically distinct.
Trichotillomania
Urge to pull hair from anywhere on body. Tension followed by temporary relief. Usually when person is alone or with family members.