Tutorial 3. Flashcards
What is pain?
The body’s response to harmful stimuli - those that are intense enough to cause tissue damage or threatened to do so
Unpleasant
Warning signal that our well bring is being threatened
What is the Traditional Biomedical view of pain?
The extent of pain severity is directly proportional to the amount of tissue damage
Everyone with the same injury should then experience the same amount of pain
Objective definition- should be able to measure severity of injury based on
What sort of reaction of pain?
Pain is a Subjective (unique to an individual) reaction to an objective stimulus (e.g.tissue damage)
Two people with same tissue damage may experience different pain
-The way you perceive pain may say a lot more about your psychological state than about the intensity of the pain stimulus
-past experiences, state of mind, mood
What are the Theories of pain?
Gate control Theory
Classical Conditioning Model
Operant Conditioning Model
Cognitive Behavioural Model
What is the Gate control Theory?
A Biopsychosocial view
A HYPOTHETICAL mechanism called the “gate” exists at the spinal cord level which can block some pain signals while allowing others through to the brain.
The gate receives input from two directions
What are the two directions of the Gate Control Theory?
- Ascending messages (biological in nature) - approach
2. Descending messages (psychological in nature) - managing pain
What is the Ascending Messages input in the Gate control Theory?
Biological in nature
Approach
Receptors in the skin
Are sent via peripheral nerve fibres following injury. These fibres synapse at the gate and carry pain messages to the brain
What is the Descending Messages input in the Gate control Theory?
Psychological in Natures
Related to Thoughts and Feelings
Can open or close the gate. These can include: context, interpretation, attention, past experience.
How is the patient feeling when the spinal nerve gate is “open”?
More suffering
How is the patient feeling when the spinal nerve gate is “closed”?
Less suffering
What is the Operant Conditioning?
A response to painful stimuli is withdrawal because an individual attempts to escape the noxious stimuli (e.g. moving away, not repeating the movement, removing the pain by taking painkillers) (NB- this is Adaptive with acute pain)
The result of the withdrawal behaviour is diminishment/avoidance of pain (i.e. removal of unpleasant stimulus) This serves as Negative reinforcement.
Reinforcement such as attention/sympathy from others may maintain chronic pain behaviours
What is “Withdrawal” an example of, in Operant Conditioning?
Negative Reinforcement (removal of an unpleasant stimuli) because it removes the pain. The withdrawal behaviour that led to the removal of pain is reinforced (and thus will more likely occur again)
What is the two Manners of Operant Conditioning Learning?
Reinforcement
Punishment
What does the Reinforcement aspect of Operant Conditioning Learning include?
An environmental stimulus that occurs after behaviour and INCREASES the likelihood that the behaviour will occur in the future
What are the two aspects of the Reinforcement aspect of Operant Conditioning Learning?
Positive Reinforcement - Presentation of a pleasant stimulus
Negative Reinforcement - Removal of an unpleasant stimulus