The impact of pain information on pain intensity An experimental study on violation of expectations and conflicting information

Abstract: Previous research has shown that there are several components involved in how we perceive pain, e.g. social and psychological factors such as expectations of pain. A cold pressor experiment was conducted to investigate the impact of negative/positive information on pain perception. We also investigated if a cognitive conflict created by disconfirming information of a pain expectation influences the pain experience. 106 participants (49 men and 57 women) got to hold their hand in 5°C water for 1 minute. The main outcome variable was self-reported pain during the cold pressor test. The results show that participants receiving negative information perceived more pain than the group receiving positive information. There was no significant difference in pain perception between those who were confirmed or disconfirmed in an expectation, nor was there a difference in cognitive conflict between the two groups. This is a first attempt to explore pain and cognitive conflict and can work as an inspiration for further investigation.