Anxiety disorder

Reflexes and Classical Conditioning

  • Reflexes are automatic responses to stimuli.

  • Instances of reflexes include:

    • Salivating (e.g., Pavlov's dogs)

    • Fear responses

    • Eye blink reactions

    • Startle reactions

  • Classical conditioning is primarily concerned with the learning of reflexes.

Phobias and Classical Conditioning

  • Phobias can be explained through the lens of classical conditioning.

  • A previously neutral stimulus can become a conditioned stimulus through pairing with an aversive stimulus (unconditioned stimulus).

  • Example of a dog phobia:

    • Dogs are typically neutral or liked by many.

    • If paired with a negative event (e.g. dog bite, pain, disease), the neutral condition can lead to fear responses.

  • Events that can lead to fear conditioning:

    • Pain: Getting bitten by a dog

    • Disease: Seeing an ill-looking dog

    • Being chased by an aggressive dog.

Social Learning Theory and Vicarious Conditioning

  • Fears can also be learned through observing others (social learning theory).

  • Vicarious conditioning: Learning fears by watching others react (examples include caregiver responses to fears).

    • Example: Observing caregivers display intense fear towards spiders or dogs can teach children that these stimuli are to be feared.

  • Implications:

    • Such observational learning provides a basis for children to adopt the same fears as their caregivers.

    • Media representations (news stories, etc.) can also reinforce these learned fears.

Persistence of Phobias

  • Once developed, phobias are often chronic and tend not to resolve without intervention.

  • Individuals may continually encounter their phobic stimuli in daily life (e.g., dogs in public), which keeps the fear active.

  • Operant conditioning explains the persistence of phobias through avoidance behaviors:

    • Avoidance reduces aversive emotions associated with fear, thus reinforcing the behavior of avoidance.

    • Removal of fear (emotion) through avoidance creates a cyclical pattern where the individual is likely to avoid again in the future.

Operant Conditioning and Avoidance

  • Considerations in avoidance behaviors:

    • Avoidance of fears leads to temporary relief (negative reinforcement).

    • Increased likelihood of future avoidance as it successfully removes fear.

  • Negative reinforcement defined:

    • When a behavior is reinforced by the removal of an aversive stimulus (in this case, fear).

Effective vs Ineffective Therapies

  • Exposure therapy is considered the best treatment for phobias and anxiety disorders.

  • Importance of practicing exposure:

    • Modern exposure therapy focuses on gradual exposure to feared stimuli without relying on relaxation techniques.

  • Common mistakes in exposure therapy include inadequate training for therapists and poorly executed exposure practices.

Types of Exposure Therapies

  • Systematic Desensitization:

    • Involves relaxation techniques and graduated exposure to feared stimuli.

    • Client’s exposure is structured from least to most fearful scenarios.

  • Flooding:

    • Sudden and intense exposure to the most feared stimulus without prior gradual steps.

    • Research indicates flooding is more effective but clients may resist due to fear.

  • Importance of building trust with clients before initiating exposure therapy.

Principles of Exposure and Conditioning

  • The goal of exposure therapy is habituation:

    • Gradually decrease the emotional response to the feared stimuli over time.

  • Concept of extinction in phobia treatment is reaching a point where the conditioned fear response has been eliminated.

Fear Conditioning and Evolutionary Theories

  • Fear conditioning studies often use controlled experiments, examining physiological responses to conditioned stimuli (e.g., pictures paired with shocks).

  • Humans are more likely to develop fears for stimuli that relate to evolutionary survival (e.g., snakes vs guns).

Biological Causes of Phobias

  • Genetics plays a significant role in susceptibility to fear conditioning.

  • Twin Studies:

    • Monozygotic twins show more similarity in fear responses compared to dizygotic twins, indicating a genetic influence.

  • Temperament:

    • Behaviorally inhibited infants show a higher risk for developing phobias later in life.

Treatment Considerations

  • Emphasis on exposure as a treatment for various anxiety disorders, not just specific phobias.

  • Importance of saying relax might not be effective in exposure therapy.

    • Clients need to experience the discomfort of anxiety without relying on coping strategies to reduce it during exposure.

Social Anxiety Disorder (SAD)

  • Definition: Persistent fear of social or performing situations where embarrassment could occur.

  • Common symptoms:

    • Fear of being scrutinized or judged negatively by others.

    • Recognizes the excessive nature of these fears but feels unable to control them.

  • Impact on life: Social anxiety can lead to avoidance of potentially fulfilling social or professional situations.

  • Often co-occurs with depression due to lack of social relationships.

Causal Factors of Social Anxiety Disorder

  • Different cognitive, genetic, and environmental factors contribute:

    • Classical conditioning (learned fears).

    • Evolutionary adaptations towards social behavior.

    • Cognitive biases (e.g., negative predilections about social interaction).

  • Importance of addressing treatment barriers, including high avoidance and fear of social interaction.

Commonly Feared Social Situations

  • Performance situations:

    • Speaking in public, giving presentations, eating in front of others.

  • Interaction situations:

    • Meeting new people, dating, initiating conversations.

  • The prevalence of these fears leads to significant life impairments, emphasizing the need for effective therapeutic interventions.

Summary of Therapeutic Approaches

  • Best treatment demonstrated to help with various anxiety disorders remains exposure therapy, with adjustments for individual needs.

  • Research shows significant success rates in treatment efficacy, with maintenance strategies critical to preventing relapse.