Pain-avoidance versus reward-seeking: an experimental investigation

Area of Science:

• Psychology
• Neuroscience
• Pain Research

Background:

• Fear-avoidance models suggest pain-related fear and avoidance contribute to chronic pain.
• The role of motivation and goal prioritization in pain-related fear development is not well understood.

Purpose of the Study:

• To investigate how motivation and goal prioritization influence pain-related fear and avoidance in a context of competing goals.
• To examine the impact of co-occurring rewards with pain on these processes.

Main Methods:

• A differential human fear-conditioning paradigm with 57 healthy volunteers.
• Participants performed joystick movements, with one associated with pain (pain-US) and another not.
• An experimental group received a reward (lottery tickets) with the pain-US, while a control group did not.

Main Results:

• Neither the co-occurring reward nor the prioritized goal affected initial pain-related fear levels.
• Participants chose the painful movement more often when a reward was present, an effect moderated by goal prioritization.
• The reward-associated increase in selecting the painful movement was highest in the reward-seeking group and lowest in the pain-avoidance group.

Conclusions:

• Competing goals and goal prioritization are crucial in reducing avoidance behavior, even if initial pain-related fear is not directly modulated.
• Understanding goal dynamics offers insights into managing chronic pain and associated avoidance behaviors.