Generalized Anxiety Disorder (GAD): DSM-5 Criteria, Assessment, and Treatment

What characterizes Generalized Anxiety Disorder (GAD)?

Excessive worry about a variety of topics occurring on more days than not.

What is the minimum duration for symptoms to be present for a GAD diagnosis?

At least 6 months.

What is a central feature of GAD?

Excessive worry that is difficult to control.

How many symptoms must be present to diagnose GAD?

At least 3 out of 6 symptoms reflecting physiological or psychological arousal.

List three symptoms associated with GAD.

Feeling keyed up, difficulty concentrating, disrupted sleep.

What should NOT be the basis for diagnosing GAD?

Excessive worry occurring only during depressive, bipolar, or psychotic disorders.

What historical change occurred in the DSM-III regarding GAD?

GAD was first introduced as a diagnosis requiring specific symptoms for at least 1 month.

What was a significant change in the DSM-III-R for GAD diagnosis?

Worry became the central feature, requiring excessive worry about at least two life circumstances.

What is the estimated current prevalence of GAD according to DSM-III-R?

1.6%.

What is the lifetime prevalence of GAD?

Approximately 5%.

What demographic factors are associated with higher rates of GAD?

Female gender and greater comorbidity with other disorders.

What is the median age of onset for GAD?

31 years old.

What does research suggest about the long-term course of GAD?

It is a chronic and relapsing disorder with fluctuations in symptoms.

What percentage of GAD clients achieved full remission after a 5-year follow-up?

Only 18%.

How does GAD prevalence differ between men and women?

Women are approximately twice as likely to meet criteria for GAD.

What are some predictors of a negative clinical course in GAD?

Comorbidity with personality disorders, decreased life satisfaction, and difficult family relationships.

What role do sociocultural factors play in GAD?

They may increase vulnerability to developing psychological symptoms due to exposure to stressors.

What is a common feature of worry in GAD compared to other anxiety disorders?

GAD worries are more future-oriented.

What is the relationship between GAD and substance use disorders in men?

Men with GAD have higher rates of comorbid alcohol and substance use disorders.

What cognitive strategies may women with GAD use that are less effective?

Thought suppression and negative problem orientation.

What is the impact of genetic vulnerabilities on GAD?

Higher trait anxiety and negative affectivity may interact with environmental factors.

What is the significance of the DSM-IV revisions for GAD?

It aimed to improve the reliability of GAD diagnosis by refining symptom criteria.

What is a common symptom of GAD related to physical tension?

Muscle tension.

What is the prevalence of GAD in primary care settings?

Higher rates, approximately 5.8%.

What does longitudinal research indicate about symptom improvement in GAD?

Many experience periods of symptom improvement followed by recurrences.

What was the focus of recent research regarding GAD symptoms?

To identify and refine the symptoms that reliably distinguish GAD from non-anxious individuals.

What is a common functional impairment reported by individuals with GAD?

Similar functional impairment to those with major depression, especially in romantic relationships.

What is the relationship between GAD and work absences?

Individuals with GAD report higher work absences.

How does comorbidity affect individuals with GAD?

Comorbidity with other disorders leads to higher levels of trait anxiety and negative affect.

What percentage of individuals with GAD also have a comorbid mood disorder?

80% of respondents with a principal diagnosis of GAD also had a comorbid mood disorder.

What does research suggest about the onset of GAD in relation to major depressive episodes?

Onset of GAD can precede or follow major depressive episodes, indicating it is not simply a secondary condition.

What neurotransmitter is implicated in GAD and may have decreased activity in affected individuals?

Gamma-aminobutyric acid (GABA).

What role does norepinephrine play in anxiety disorders?

Norepinephrine levels are elevated in certain anxiety disorders, but data on its role in GAD is mixed.

What is the relationship between serotonin levels and anxiety?

Low levels or receptor dysfunction of serotonin are associated with increased anxiety.

What is the effect of cortisol levels in individuals with GAD?

Overproduction of cortisol is observed, and reduced cortisol is associated with lower reported anxiety.

What neuroimaging findings are associated with GAD in adults?

Findings include larger amygdala volumes, lower metabolic rates in basal ganglia, and hypermetabolism in the prefrontal cortex.

How does chronic worry affect autonomic variability in individuals with GAD?

Chronic worry leads to reduced autonomic variability during stressful tasks.

What is a common marker of autonomic rigidity in GAD?

Lower levels of heart rate variability in response to stressors.

What role do stressful life events play in the development of GAD?

Stressful life events are associated with an increased risk of developing GAD symptoms.

How does negative problem orientation affect individuals with GAD?

Negative problem orientation leads to poor confidence in problem-solving and is more pronounced in those with GAD.

What are the implications of comorbidity for remission from GAD?

Comorbidity has negative implications for the likelihood of remission from GAD.

What is the relationship between GAD severity and cortisol levels in older adults?

There is a more consistent relationship between GAD severity and cortisol levels in older adults.

What cognitive correlate is associated with chronic worry in GAD?

Pathological worry is linked to poor problem-solving ability and negative problem orientation.

What is the effect of benzodiazepines on GABA receptors?

Benzodiazepines increase the ability of GABA receptors to bind with available GABA.

What is the role of the anterior cingulate cortex in individuals with GAD?

It seems to play an inhibitory role in the prefrontal cortex in adults with GAD.

What is a significant finding regarding the amygdala in children with GAD?

Children with GAD may have larger amygdala volumes.

What is the relationship between heart rate variability and symptom severity in GAD?

Lower heart rate variability is associated with greater symptom severity in GAD.

What does research suggest about the neurobiology of GAD?

There is limited understanding, but certain brain regions and neurotransmitters are implicated.

What is the significance of the HPA axis in relation to GAD?

Stressful life events may alter the HPA axis activity, increasing vulnerability to psychopathology.

How does the presence of negative problem orientation affect worry severity?

Negative problem orientation is a strong predictor of worry severity in individuals with GAD.

What is the impact of successful treatment on comorbidity rates in GAD?

Comorbidity rates appear to diminish with successful treatment.

What is the relationship between problem-solving confidence and anxiety in GAD?

Manipulating problem-solving confidence through false feedback can lead to higher anxiety and personal worry.

How does worry relate to time management in individuals with GAD?

Worry does not have a positive relationship with time management; it negatively affects time structure and purpose.

What cognitive errors are associated with excessive worrying?

Probability overestimation and catastrophizing.

Define probability overestimation.

Thinking a feared consequence is more likely to occur than it actually is.

What is catastrophizing?

Assuming that an outcome will be much less manageable than it actually is.

What cognitive biases do individuals with GAD exhibit?

They pay greater attention to threatening stimuli and interpret ambiguous stimuli as threatening.

What is the Emotional Stroop paradigm used for?

To demonstrate cognitive bias in GAD by showing difficulty in ignoring the meaning of threatening words.

What is the visual dot-probe task?

A task where participants respond to a probe stimulus that appears in the same spot as a threatening stimulus, indicating attentional bias.

How do individuals with GAD interpret ambiguous stimuli?

They tend to interpret them in a negative or threatening manner.

What is cognitive avoidance theory of worry?

Worry is an attempt at cognitive avoidance, distracting individuals from experiencing fear and negative emotions.

What is the contrast avoidance model of worry?

Worry is used to avoid sharp increases in negative emotions, helping individuals prepare for negative events.

What is intolerance of uncertainty in GAD?

A tendency to react negatively to uncertain situations, often preferring negative outcomes over uncertainty.

How does intolerance of uncertainty relate to worry?

It contributes to negative appraisals of ambiguous situations and increases worry severity.

What is metacognition?

The act of thinking about one's thought processes.

What are the two types of worry content in GAD?

Type 1: typical worry about everyday events; Type 2: worry about the cognitive processes of worrying.

What role do negative beliefs about worry play in GAD?

They are central to the maintenance of GAD and contribute to lower confidence in cognitive abilities.

What emotional difficulties are associated with GAD?

Individuals may have difficulties regulating emotions, experience intense emotions, and struggle to name and accept negative emotions.

What is the 'mood-as-input' model in relation to worry?

Pathological worriers use rules to decide when to stop worrying based on their mood state.

How does worry affect emotional processing?

Worrying may interfere with emotional processing of stressful stimuli, leading to increased arousal over time.

What is the relationship between fear of anxiety and worry in GAD?

Fear of anxiety predicts worry beyond other associated variables.

How do chronic worriers approach problem-solving?

They often apply an 'as many as can' rule, leading to a cycle of persistent worry.

What is the significance of attentional biases in GAD?

They may play a causal role in the development of anxiety disorders by increasing access to threatening information.

What is the impact of cognitive biases on memory in GAD?

GAD individuals may demonstrate better memory for threatening stimuli compared to nonthreatening ones.

What is the role of sympathetic arousal in GAD?

Individuals with GAD do not typically demonstrate sympathetic arousal despite assuming preferential encoding of threat information.

What is the potential vulnerability factor for developing psychopathology in GAD?

Intolerance of uncertainty is increasingly recognized as a transdiagnostic feature across anxiety and mood disorders.

How does the cognitive avoidance theory explain the function of worry?

Worry serves as a distraction from full emotional experiences of fear and negative emotions.

What is the relationship between problem-solving abilities and pathological worry?

Intolerance of uncertainty may affect perceptions of problem-solving abilities, leading to increased pathological worry.

What is the relationship between emotional intensity and GAD?

Heightened emotional intensity is a strong predictor of GAD and differentiates it from other anxiety disorders.

What cognitive processes are involved in the worry cycle for individuals with GAD?

Individuals may enter an interactive worry cycle that is not easily exited due to their cognitive processes.

What differentiates GAD from other anxiety disorders?

GAD is characterized by the presence of an identifiable trigger, less mental imagery, and metacognitive beliefs about the dangerousness and uncontrollability of worry.

How do worrisome thoughts in GAD differ from those in other disorders?

Worrisome thoughts in GAD are more realistic, less ego dystonic, more persistent, and more verbally oriented.

What family factors are associated with GAD?

GAD is often experienced in unpleasant, negative, and rejecting family environments.

What is a limitation of studies on family environments and GAD?

Most studies rely on self-report or retrospective reports of family environments, which may be biased.

What relationship was found between parental alienation and GAD symptoms?

There is a relationship between perceived parental alienation and rejection and GAD symptoms in community adolescents.

What attachment issues are reported by college students with GAD?

College students who meet criteria for GAD often report less secure attachment to their parents.

What role do interpersonal problems play in the development of GAD?

Interpersonal problems may play a causal role in the development of GAD, as evidenced by high frequency of interpersonal themes in worry content.

How do individuals with GAD show parent-child boundary problems?

Individuals with GAD show more parent-child boundary problems compared to those without GAD.

What changes in interpersonal problems are associated with GAD symptoms?

Improvements in self-reported interpersonal problems are associated with improvements in worry symptoms.

What does research suggest about peer relationships in college students with GAD?

Research indicates there is no evidence of disrupted peer relationships in college students who meet criteria for GAD.

What should a comprehensive assessment of GAD examine?

A comprehensive assessment should examine worry, beliefs about worry, intolerance of uncertainty, anxiety, associated features, comorbid symptoms, goals, and emotional avoidance.

What is the Anxiety and Related Disorders Interview Schedule for DSM-5 (ADIS-5)?

ADIS-5 is a clinician-administered semi-structured interview that provides DSM-5 diagnostic information about a range of psychological problems.

What types of conditions can the ADIS-5 screen for?

ADIS-5 can screen for anxiety, obsessive-compulsive and related disorders, trauma- and stressor-related disorders, mood disorders, somatic symptom disorders, and substance use disorders.

What types of diagnoses can be assigned using the ADIS-5?

Depending on the version, current and lifetime diagnoses can be assigned, including standard and specific versions.

What is the significance of beliefs about worry in GAD?

Beliefs about worry are crucial in understanding the severity and persistence of anxiety symptoms in GAD.

What is intolerance of uncertainty in the context of GAD?

Intolerance of uncertainty refers to the difficulty in accepting the possibility of negative outcomes, which is a common feature in GAD.

What are associated features of GAD?

Associated features include tension, anxiety, and various comorbid symptoms.

How does emotional avoidance relate to GAD?

Emotional avoidance can exacerbate symptoms of GAD by preventing individuals from confronting their worries.

What is the purpose of the lifetime version of the GAD assessment?

To help determine the presence or absence of GAD and common comorbid disorders.

What is the reliability of the lifetime version of the GAD assessment based on previous investigations?

No published investigations of reliability, but its precursor (ADIS-IV) has demonstrated good reliability.