psychological models of anxiety disorders Flashcards

1
Q

psychoanalytic model

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  • Does psychoanalysis and associated psychoanalytic theory have a role in clinical psychology practice
    • Founder of psychoanalysis- Sigmund Freud
      Main idea - Physical symptoms were the result of patient’s inability to deal with invisible, unconscious sexual psychological drives - Overarching term= anxiety neurosis.
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2
Q

models of anxiety in clinical psychology

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  • The importance of psychological models.
    • Are models necessary to advance clinical practice
    • Is it necessary to assess the validity and reliability of psychological models
      Consider how psychological models link to evidence-based practice in clinical psychology?
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3
Q

psychoanalysis- unconscious processing

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  • Through clinical observations and formulation Freud developed a model of psychoanalysis
    • The example of Little Hans is a famous case study of Freud’s theory of anxiety
    • Hans – 5-year-old boy with a fear of horses
    • Through information provided to Freud via Hans’ father
      ○ Hans’ horse phobia was a fear of his unconscious sexual desire for his mother and his unconscious fear of the to be experienced angry from his father.
      ○ The unacceptable fear (i.e. the unacceptable nature of the Oedipal complex) is transformed into a more acceptable phobia
      Neurotic anxiety manifests itself as fear of an external danger – in Hans’ situation the fear punishment which may come in the form of castration, but it all remains in the unconscious.p
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4
Q

psychoanalytic model- unconscious mental processes

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  • Focus is on trying to uncover/decipher unconscious mental processing can impact adversely and lead to numerous psychological issues including anxiety.
    • Id, ego and superego often the three core constructs (but the model has evolved).
    • Id: primitive/instinctive reservoir of psychic distress/desire
    • Ego. Aspect of the psyche with the aim of controlling desires- if ego fails , then the outcome is neurotic anxiety, and the desire becomes repressed
    • Superego- Acts as the ’conscience”. Often thought as reflecting social norms and reflects learning via the person’s father.
      Many scientists believe that although there are intriguing theoretical ideas, there is no methodological rigour involved in testing the idea and ultimately deficient in facts.
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5
Q

behavioural models of anxiety

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  • Anxiety is a learned response – the more we are rewarded for a behaviour the more likely we are to do it- i.e. the behaviour is reinforced
    • Classical Conditioning (Pavlov)
    • Operant (instrumental) Conditioning (Watson, Skinner)
    • Two stage theory of the acquisition & maintenance of fear and avoidance behaviour (Mowrer, 1939; 1960).
      How well do behavioural models explain anxiety?
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6
Q

classical conditioning

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Innate unconditioned reflexes vs conditioned reflexes

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7
Q

operant (instrumental) conditioning

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  • Method of learning that occurs through rewards and punishments for behaviour.
  • Through operant conditioning, an individual makes an association between a particular behaviour and a consequence (Skinner, 1938).
    Learned consequences modify the type and frequency of behaviour
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8
Q

John Watson

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  • Published Psychology from the Standpoint of a Behaviorist in 1919
  • Classical (Pavlovian) and instrumental conditioning can explain much, if not all, behavior.
  • Inferring internal states is redundant and unnecessary
    Cognitive explanations are not scientific
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9
Q

BF Skinner- rise of behaviourism

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“All we need to know in order to describe and explain behavior is this: actions followed by good outcomes are likely to recur, and actions followed by bad outcomes are less likely to recur.” (Skinner, 1953)

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10
Q

operant conditioning techniques

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  • POSITIVE REINFORCEMENT
    • Increasing a behaviour through reward
    • e.g., an extra 30 minutes TV for helping with clearing up
  • NEGATIVE REINFORCEMENT
    • increasing a behaviour by removing an aversive stimulus
      e.g., leaving for work early to avoid being stuck in traffic
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11
Q

OCD

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  • Obsessions
    • Recurrent & persistent thoughts, images or urges that are experienced as intrusive and unwanted and cause marked anxiety or distress.
  • Compulsions
    Repetitive behaviours (e.g. hand washing, checking) or mental acts (e.g. praying, counting) that the person feels driven to perform in response to an obsession to reduce distress or preventing some dreaded event or situation.
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12
Q

behavioural theory of OCD

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  • Two stage theory of the acquisition & maintenance of fear and avoidance behaviour (Mowrer, 1939; 1960).
  • Stage 1 Acquisition – Thoughts, images, objects can acquire distressing properties through association e.g. an obsession is linked to distress e.g. thought of hurting an animal.
    Stage 2 Maintenance – Avoidant, escape responses i.e. RITUALS develop because they decrease anxiety/distress and are maintained through negative reinforcement.
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13
Q

behaviour therapy for OCD- exposure and response prevention

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  • Exposure (Expose people to obsessional stimuli)
  • Response Prevention (prevent compulsions used to lessen distress associated with the obsessional stimuli
    Repeated exposure to the obsessions while using strict response prevention leads to habituation
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14
Q

main successes of the behavioural model of OCD

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    1. Foundation for experimental investigation of OCD
    1. Provided some support for Mowrer’s Model (at least for the maintenance phase)
    1. Delineated between forms of compulsive behaviour
      1. Development of an effective therapy (ERP)
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15
Q

limitations of the behavioural model of OCD

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  1. Does not adequately explain the cognitive aspects of OCD
  2. Not all obsessions provoke anxiety/distress
  3. Compulsions can elevate anxiety
  4. Doesn’t differentiate between anxiety disorders
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16
Q

cognitive theory of emotional disorders (Beck, 1967; 1976)- emotional disorders maintained by distorted thinking

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  • Distorted thinking characterised by frequent negative automatic thoughts (NATs)
  • NATs are a product of beliefs and assumptions stored in memory i.e. Schemas
  • Beliefs & assumptions represent knowledge structures, which are relatively stable constructs termed schemas (Bartlett, 1932)
  • Schemas guide behaviour and shape interpretation of events.
    Behaviour and thinking follows logically from the beliefs and assumptions.
17
Q

schemas

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  • Focus of therapy; based on the content of schemas
  • Beliefs
    • Unconditional in nature perceived as reflecting the truth about the self and world
    • Declarative statements; ‘I’m worthless, I’m a failure, I can’t cope’
  • Assumptions
    • Conditional in nature- guide behaviour
      ‘If I don’t achieve success in everything I am a failure’
18
Q

schemas and negative automatic thoughts

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  • Specific schemas/NATS are associated with specific disorders. ‘Content specificity hypothesis’
  • Schemas can arise from early experience, or develop subsequently to the development of the disorder
  • Negative Automatic Thoughts
    • Reflect the activation of schemas
    • Appraisals/interpretation of events
      Automatic, rapid, involuntary, plausible, thoughts/images, systematic errors
19
Q

reasoning biases/ thinking errors

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  • Selective abstraction: Draw conclusions based on limited evidence without considering wider evidence
  • Catastrophizing: Overestimating the significance of events
  • Dichotomous thinking: Black & white thinking /all bad or all good
    Overgeneralisation: Applying a belief based on one situation to all situations
20
Q

benefits of cognitive theory

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  • Provided the impetus for disorder specific models
  • Useful heuristic to explain anxiety/psychological difficulties.
  • Notion that information stored in long term memory influences processing.
    Clinically relevant & effective treatments
21
Q

limitations of cognitive theory

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  • Question mark over the validity of the theory
  • Clinical, rather than a scientific theory- developed from practical experience
  • Negative thoughts might be a consequence not an antecedent of anxiety
  • Focus is only on one level of cognition
    This was first incarnation of the cognitive model of emotional disorders and set the scene for anxiety disorder specific models
22
Q

theoretical models of anxiety disorders

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  • One criticism of cognitive approaches to anxiety disorders is that they simply re-label symptoms.
  • BUT, cognitive models can provide a complex theory of the cognitive processes and structures underpinning anxiety disorders.
  • Examples include;
    • Clark (1986) Model of Panic Disorder
      Clark & Wells (1995) Model of Social Phobia
23
Q

panic disorder: diagnostic criteria in DSM V

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  • Panic Attacks - An abrupt surge of intense fear or intense discomfort that reaches a peak within minutes and during which time four or more of the following symptoms occur.
    • Palpitations, pounding heart, or accelerated heart rate
    • Sweating
    • Trembling or shaking
    • Sensations of shortness of breath or smothering
    • Feeling of choking
    • Chest pain or discomfort
    • Nausea or abdominal distress
    • Feeling dizzy, unsteady, lightheaded, or faint
    • Derealization (feelings of unreality) or depersonalization (being detached from oneself)
    • Fear of losing control or “going crazy”
    • Fear of dying
    • Paresthesias (numbness or tingling sensation)
    • Chills or heat sensations
  • Defined by 4 or more symptoms from list of 13
  • Recurrent & Unexpected Panic Attacks
    • ≥1 attack has been followed by 1 month or more than 1 or more of the following:
    • Persistent concern about additional attack
    • Worry about the implications of the attack or its consequences
    • A significant change in behaviour related to the attack
  • Symptoms not due to medical condition/direct physiological effects of a substance
    Not attributable to another psychiatric disorder
24
Q

influence of cognitive psychology on cognitive therapy

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  • Led to theories and therapies for clinical disorders.
  • Provides more empirical evidence than can be obtained within therapy
  • Casts light on the causal role of cognitive processes in the development of psychological disorders
    Research in cognitive psychology of direct relevance for treatment strategies
25
Q

conclusions

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  • Models of anxiety disorders have evolved
  • Models guide the development of interventions
  • Development of models precede design of therapeutic interventions
    Increased use of cognitive psychology (and many other theories from many domains within psychology) has informed the development and practice of therapeutic interventions
26
Q

stages in developing a new psychological treatment for OCD

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  • Is there a need for a new/better/more efficacious treatment ? How do you decide?
    • Is there a coherent theory that underpins the treatment? How do we test the theory? What constitutes “good” evidence?
    • Stages of treatment evaluation; single case series, open trials, feasibility studies, randomised controlled trials, effectiveness studies
27
Q

are advances in treating OCD required?

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  • CBT or ERP- recommended psychological approaches for OCD (NICE, 2006)
    • Multiple meta-analyses conclude that CBT or ERP are effective interventions
    • Meta-analyses focused on statistical significance (effect sizes) not the clinical significance
      We need to know if psychological interventions produce clinically meaningful change
28
Q

a clinical significance analysis of psychological interventions for OCD (Fisher et al., 2020)

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  • To determine the efficacy treatment for OCD
    • Applied Jacobson criteria to individual patient data on the “Gold Standard” outcome measure i.e. Yale Brown Obsessive Compulsive Scale (Y-BOCS)
    • Two fold criterion for recovery on Y-BOCS
      ○ a) Statistically significant improvement following Tx
      ○ b) Post-treatment score closer to a functional rather than dysfunctional population
      Asymptomatic criterion: 7 points or less on Y-BOCS
29
Q

more effective interventions are needed

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  • Approximately 60% of people continue to experience symptoms following psychological interventions.
    • However there are other issues to consider when interpreting results
      ○ Therapist competency
      ○ Inclusion/exclusion criteria of the RCT
    • Treatment Adherence
      ○ 15% of eligible people refused psychological Tx
      16% of treatment starters dropped out of psychological Tx (Leeuwerik, Cavanagh & Strauss, 2019)
30
Q

metacognitive beliefs about obsessions

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  • Thought-Action Fusion (TAF)- “Imaging a knife in his chest means I am going to stab my psychologist”
    • Thought-Event Fusion (TEF)- “Thinking that I committed a murder means I did”, “Having an image of germs means I am contaminated”
      Thought-Object Fusion (TOF)- “Negative feelings can be passed into my possessions
31
Q

metacognitive beliefs about rituals

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  • “My rituals give me peace of mind by getting the bad thoughts out of my head”
    • “I must wash until I remove the thoughts from my mind and then I feel calmer”
    • “ Checking that the door is locked stops me worrying”
      “ Rituals prevent anxiety from overwhelming me”
32
Q

the role of metacognition in OCD

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  • Several studies have been conducted to test if metacognition can explain symptoms of OCD.
    • Importantly, the studies have compared different models/theories of OCD
33
Q

belief domains and OCD symptoms (Myers, Fisher and Wells, 2008)

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  • Cognitive Beliefs
    ○ -Perfectionism / Certainty
    ○ -Responsibility
    • Metacognitive Beliefs
      ○ -Importance and control of thoughts
    • General Constructs
      ○ Worry
      Overestimation of threat
    • Thought fusion (metacognitive) beliefs prospectively and independently predict OCD symptoms controlling for baseline symptoms, worry and cognitive beliefs.
      Metacognitive thought fusion beliefs implicated in the development of OCD.
34
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