Phobias Flashcards
Define phobias
- excessive fear and anxiety
- triggered by an object, place or situation
- extent of the fear is out of proportion to any real danger from the phobia stimulus
Categories of phobias and related anxiety disorder according to the DSM-5
Specific phobia - phobia of an object, e.g. an animal or body part or a situation
Social anxiety - phobia of a social situation e.g. public speaking or public toilets
Agoraphobia- phobia of being outside or in a public space
Behavioural characteristics of phobias
Panic:
Behaviours in response to the stimulus: crying, screaming or running away
Avoidance:
Prevent coming into contact with the phobic stimulus, hard to go about everyday life
Endurance:
Alternative to avoidance- person chooses to remain in the presence of the phobic stimulus
Emotional characteristics of phobias
Anxiety:
Phobias involve an emotional response of anxiety, unpleasant state of high arousal - prevents them from relaxing / having positive emotion
Fear:
Immediate and extremely unpleasant response to the phobic stimulus- more intense but shorter duration than anxiety
Emotional response is unreasonable:
Disproportionate to any threat the phobia poses
Cognitive characteristics of phobias
Selective attention:
Person sees the phobic stimulus, find it hard to look away - not useful when the fear is irrational (e.g. cant focus on anything but the phobic stimulus)
Irrational beliefs:
Unfounded beliefs in relation to the phobic stimulus (cant be easily explained)
Cognitive distortions:
Perception of person with phobia may be inaccurate + unrealistic
How does the behavioural approach explain phobias (classical conditioning)
Acquisition by classical conditioning:
- learning to associate something we initially have no fear (NS) with something that triggers a fear response (UNS)
- e.g. little Albert - UCS = noise, UNR = fear, NS = rat, CS = rat, CR fear
How does the behavioural approach explain phobias (operant conditioning)
Maintenance by operant conditioning:
- takes place when the behaviour is reinforced (rewarded) or punished.
- reinforcement (positive + negative) increases the frequency of the phobia
- with negative reinforcement = the individual avoids a situation that is unpleasant
- when we avoid a phobic stimulus we escape the fear - the reduction in fear reinforces the avoidance behaviour
Evaluation of the behavioural approach to explaining behaviour
Strength - Real world applications:
Used in exposure therapies - identifies a means of treating phobias
Once the avoidance beh. Is prevented it cant be reinforced by avoidance of the fear so declines
Limitation - Cognitive aspects of phobias:
Ignores the cognitive aspects - not just the behaviour of avoidance BUT also the irrational thoughts. Explains the behaviour but not the phobic cognitions
Strength - Phobias and traumatic experiences:
The association between stimulus (dentistry) and an unconditioned response (pain) does lead to the development of phobias. (Little Albert another example)
COUNTERPOINT: not all frightening experiences leads to phobias e.g. snakes
The behavioural approach to treating phobias: systematic desensitisation (outline)
- gradually reduce anxiety through classical conditioning;
if a person can learn to relax in the presence of the phobic stimulus = will be cured - a new response to the phobic stimulus is learned (paired with relaxation not anxiety);
Learning the new response = counter conditioning
3 processes involved in systematic desensitisation
- The anxiety hierarchy: made by client + therapist - list of situations related to the phobia that provoke anxiety (order from least to most)
- Relaxation: therapist teaches client to relax as deeply as possible - cant be scared and relaxed at the same time = reciprocal inhibition (e.g. breathing, mental imagery, meditation or drugs e.g. Valium)
- Exposure: client is exposed to the stimulus while in relaxed state - takes place across several sessions. When client can stay relaxed in lower levels they can move up.
Flooding (how it works & ethical safeguards)
- immediate exposure to a phobic stimulus
- stops phobic behaviour quickly; don’t have the option of avoidance, learn phobia is harmless.
- process = extinction, when the CS is encountered with UCS = CS no longer produces the CS (fear)
Ethical safeguards:
- unethical; important that client gives informed consent + prepared before the session (3 hrs long)
- client offered either flooding or S.D
Evaluation of S.D
Strength- evidence of effectiveness:
Lisa Gilroy; 42 people who had a fear of spiders, at 3 and 33 months the SD group were less fearful than a control group (without exposure)
Strength- people with learning difficulties:
Most appropriate treatment for people with learning difficulties; they struggle with cognitive therapies (require rational thought) and are too stressed by flooding.
Evaluation of flooding
Strength- cost effective:
Can work in as little as 1 session unlike 10 sessions in SD to achieve the same outcome.
More people can be treated at the same cost in flooding.
Limitation- traumatic:
Provokes tremendous anxiety; means that attrition rates (dropouts) are much higher than for SD.