Anxiety Disorders Flashcards
anxiety
response to perceived or anticipated threat (vs actual immediate threat)
anxiety: physiological symptoms
- racing heart
- difficulty breathing
- GI distress
- sweating
- tense muscles
- trembling/shaking
anxiety: cognitive symptoms
- anticipate harm
- worry
- exaggerate danger
- difficulty concentrating
- hypervigilance
anxiety: behavioural symptoms
- avoidance
- escape
fight or flight
- when our brain detects danger, it sends a signal to mobilize our body to prepare
- sympathetic nervous system activates the body for fight or flight
- necessary for survival, adaptive
- can be helpful, prepares or motivates us
prevalence of anxiety disorders
- 18-29 years old = 41%
- 30-44 years old = 36%
- 45-49 years old = 31%
- 60 years old or more = 16%
etiology of anxiety: biological
- overactive fear circuitry in brain
- 5-HTTLPR genotype variations
- neurotransmitter abnormalities
etiology of anxiety: fear circuitry in brain
- brain structures implied in anxiety disorders
- amygdala, hippocampus, prefrontal cortex
- HPA activity triggers “fight or flight” response
- overactivation may lead to anxiety disorder
etiology of anxiety: genetic influences
-moderate heritability
etiology of anxiety: neurotransmitter abnormality
- variation in serotonin transporter genes associated with reduction in serotonin
- increased anxiety-related B
- behaviorally inhibited temperament
etiology of anxiety: behavioral
- classical conditioning
- modelling of feared responses
- avoidance
- safety behaviour
avoidance
- can reduce anxiety in the moment
- operant conditioning - negative reinforcement
safety behaviours
- overt/covert actions performed in order to reduce distress associated with feared cues
- they maintain anxiety (reinforced because it works in the moment)
- prevents the learning of new info about the consequences of the feared event
etiology of anxiety: cognitive
- negative appraisals
- overestimation of severity (catastrophizing)
- being able to reappraisal, or look at a situation from various perspectives minimizes negative responses
- limited sense of self-controland mastery
- biased info processing and selective attention
anxiety sensitivity
- tendency to interpret physiological changes in the body as signs of danger
- predicts development of panic attacks and anxiety disorders
- refer to schema in notebook
biased info processing and selective attention entails _____
- increased attention toward threat
- more quickly to notice feared cues, even at low levels
etiology of anxiety: social and sociocultural factors
- poverty
- sex and gender
- culture
- exposure to discrimination
anxiety disorders
- seperation anxiety disorder
- selective mutism
- specific phobia
- social anxiety disorder
- panic disorder
- agoraphobia
- generalized anxiety disorder
phobia vs fear
phobia is …
- strong, persistent unwarranted fear of specific object or situation
- more intense
- the greater desire to avoid
- distress that interferes with functioning
DSM-5 criteria for specific phobia
- marked fear/anxiety about a specific object/situation
- phobic object/situation almost always provokes immediate fear/anxiety
- phobic object/situation is actively avoided or endured with intense fear/anxiety
- fear is out of proportion to actual danger
- lasting 6 months +
-causes significant distress or impairment
common phobias
- animals
- natural envrionments
- situations
- blood-injection-injury
-other (clown, choking, vomit)
prevalence and course of specific phobia
- lifetime prevalence = 12.5%
- onset childhood and early adolescence
- 2x more common in women
- specific fear can vary across cultures
- only 8% receive treatment