Psychology Flashcards
What is pain
Unpleasant sensory and emotional experience associated with actual or potential tissue damage
What is acute pain
A warning that something is wrong , seen as protective
What is chronic pain
Serves no useful a ‘nuisance’
how can psychological stress be defined
mental or emotional strain resulting from adverse or demanding circumstances
physiological stress defined?
Sensory, emotional and subjective experience associated with potential
damage of body tissue and bodily threat.
what is acute stress?
short lived response to a novel situation experienced by the body as danger
how would you define chronic stress
Arises from repeated or continued exposure to threatening
or dangerous situations, especially those that cannot be
controlled.
physiological stress responses?
Breathing more rapid to increase oxygen ⚫ Blood flow increases by up to 400% & directed to heart and muscles ⚫ Increased heart rate & blood pressure ⚫ Muscles tense
Role in insula in pain recognition
The insula contributes to the subjective perception of pain
Role of cingulate gyrus in response to pain
Emotional response to pain
Briefly describe the pathway of afferent pain
Noicereceptors A delta and c fibres synapse with 2nd order neurones Substance p is released Via spinothalamic tract to thalamus Then to somatosensory cortex
What do alpha fibres use and why
Glutamate
Fast acting
What do c fibres use and why
Glutamate and substance p
Slow acting
Longer binding
What is the pain gate
Non painful input can close the gate to painful input and prevent it from reaching the cns
What is an analgesic
Selective pain suppression , conscious not affected
