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Conceptual Conditioning: Mechanisms Mediating Conditioning Effects on Pain
1Department of Psychology and Neuroscience, University of Colorado Boulder Cognitive Psychology Unit, Institute of Psychology, Leiden University Leiden Institute for Brain and Cognition, Leiden, The Netherlands m.jepma@fsw.leidenuniv.nl.
Psychological Science
|September 19, 2015
Summary
Classical conditioning influences pain perception. This study shows that conceptual expectancies, not just subconscious associations, drive pain modulation through learned cues, impacting physiological responses.
Area of Science:
- Neuroscience
- Psychology
- Pain Research
Background:
- Classical conditioning significantly alters pain responses, but the underlying mechanisms remain unclear.
- Previous research suggests pain modulation may stem from precognitive associations or conceptual expectancies.
- Distinguishing between these pathways is crucial for understanding pain perception.
Purpose of the Study:
- To isolate and investigate the role of conceptual expectancies in conditioned pain modulation.
- To differentiate between cognitive and non-cognitive mechanisms in pain conditioning.
- To examine the influence of symbolic representations of pain intensity on subsequent responses.
Main Methods:
- A thermal pain-conditioning procedure was employed.
- Conditioned stimulus (CS) cues were paired with symbolic representations of high and low noxious heat.
- Skin conductance responses (SCRs) and pain ratings were measured during a subsequent test phase with identical thermal stimuli.
Main Results:
- Identical noxious stimuli elicited higher SCRs and pain ratings when preceded by CS cues associated with high temperature.
- These effects were significantly mediated by participants' self-reported expectancies.
- Anticipatory SCRs were higher for high-temperature CS cues, but paradoxically predicted smaller subsequent heat-evoked SCRs.
Conclusions:
- Conditioned pain modulation can be acquired through purely conceptual processes, driven by expectancies.
- Self-reported expectancies and physiological threat responses appear to have opposing effects on pain perception.
- This research provides novel insights into the cognitive control of pain physiology.
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