Lecture 5 Flashcards

Phobias

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1
Q

What is a phobia? according to the DSM

A

an irrational fear of an objectively harmless stimulus or situation

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2
Q

According to the DSM, what can phobias be considered?

A

a type of anxiety disorder, that are split into three categories

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3
Q

what are these 3 categories of phobias

A

agoraphobia
social phobia
simple/specific phobia

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4
Q

agoraphobia

A

public places / outside home
a complex disorder that typically develops during adulthood
a fear of places that are thought to be difficult to escape if a panic attack were to occur

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5
Q

social phobia

A

being watched / appraised by others
a complex disorder that typically develops during teenage years
leads to avoidance of social situations

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6
Q

simple phobia

A

fear of a specific phobia/item or situation
typically occurs in childhood/teenage years
5 broad categories

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7
Q

5 categories of simple phobias

A

animals - dogs, snakes or spiders
natural environment - heights or water
medical/injury related - blood or injections
situational - planes, driving or lifts
other types - clowns, vomiting etc

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8
Q

DSM criteria of phobias

A
  • unreasonable, excessive fear out of proportion to actual danger
  • phobic stimulus always produces immediate fear/anxiety
  • fear or avoidance is persistent for 6 months+
  • phobia stimulus is actively avoided or endured with intense fear
  • fear causes clinical distress
  • not better explained by another disorder
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9
Q

according to the behavioural approach, how do phobias develop?

A
  • phobic stimulus is paired with a frightening/painful event
  • phobias are acquired through classical conditioning
  • phobias are maintained via operant conditioning
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10
Q

Little Albert case study

A
  • Albert is presented with a rat (CS) and various other animals = no fear
  • Albert is presented with a surprising loud noise (US) = fear (UR)
  • Albert presented with rat this time paired with loud noise = fear
  • Albert presented with rat = fear (CR)
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11
Q

conditioned stimulus

A

previously a neutral stimulus that acquires a response by being paired with a US

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12
Q

conditioned response

A

response evoked by CS

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13
Q

unconditioned stimulus

A

biologically significant event

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14
Q

unconditioned response

A

response evoked by US

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15
Q

generalisation

A

when stimuli similar to the phobic stimulus also produces a fear response
for example, little Albert generalised hid fear of rats and was also afraid of Santas beard and rabbits

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16
Q

Mowrer 2 factor theory

A

fear is established by classical conditioning but maintained by operant conditioning
reduction of fear when avoiding the phobic stimulus results in avoidance being negatively reinforced

17
Q

social approach to phobias

A

vicarious learning - Bandura
phobias can be learned from others nit just the individuals own experiences

18
Q

how did Mineka and Cook support Bandura?

A

found that young monkeys that observed their parents display fear towards a snake, they too would devlelop a fear

19
Q

issues withe the behavioural approach

A
  • a phobia won’t always occur
  • many people with phobias can’t remember acquiring them
  • small set of stimuli seem to form most phobias
  • one trial leaning
20
Q

evolutionary explanation - Seligman

A

evolution has rendered some stimuli more susceptible to phobias that others

21
Q

preparedness theory

A

CS - US associations operate on a spectrum of preparedness

22
Q

evidence or evolutionary theory

A

Ohman et al
paired images of neutral stimuli and common phobias with mild electric shock
during an extinction phase spiders and snakes still produced fear, while mushrooms and flowers did not

23
Q

issues with the evolutionary theory

A

-not all stimuli prepared for learning actually pose a threat
- how do we determine the evolutionary origins of fear
- evidence from experimental studies heterogeneous mixed

24
Q

cognitive theory

A
  • people have faulty cognition about situations or objects
  • they overestimate danger inherent in objects / situations
25
Q

issues with the cognitive theory

A
  • how does someone develop a phobia? what causes them to overestimate the danger?
  • fear arises before cognition; the cognition occurs afterwards
  • leans on the other accounts
26
Q

systematic desensitisation

A

Wolpe
3 key stages
1. relaxation training
2. fear hierarchy
3. counter-conditioning

27
Q

flooding

A

immediate or rapid exposure to either real or imagines version of phobic stimulus
phobic stimulus is presented until maximum tolerable anxiety begins to diminish
rapid and effective according to Marks (1975) but can also produce intense anxiety and induce panic attacks

28
Q

modelling

A

patient observers a therapist successfully interact with the phobic stimulus to sow positive interactions

29
Q

Bandura developed ‘guided mastery’

A
  • modelling
  • gradual exposure
  • postive reinforcement
  • mastery experiences
30
Q

Wolitzky-Taylor et al (2008)

A
  • meta analysis on 33 studies
  • looked at various types of therapies
  • found that real experience, multi session treatments are most effective, better than imagined exposure
31
Q

virtual reality exposure therapy

A

provides a way of overcoming logistically challenging phobias
involves using technology to provide a form of exposure

Wechsler has found some promising evidence after conducting a systematic review