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.