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Updated: May 30, 2026
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Psychophysically-anchored, Robust Thresholding in Studying Pain-related Lateralization of Oscillatory Prestimulus Activity
Published on: January 21, 2017
Extended cortical activations during evaluating successive pain stimuli
Jörn Lötsch1, Carmen Walter, Lisa Felden
1Pharmazentrum Frankfurt/ZAFES, Institute of Clinical Pharmacology, Goethe-University, Theodor Stern Kai 7, 60590 Frankfurt am Main, Germany. j.loetsch@em.uni-frankfurt.de
Social Cognitive and Affective Neuroscience
|July 20, 2011
Summary
Comparing pain involves brain activity in areas related to attention and memory. This study shows that comparing pain stimuli significantly increases brain activation, highlighting pain
Area of Science:
- Neuroscience
- Pain Perception
- Cognitive Neuroscience
Background:
- Pain comparison is a common daily activity requiring attention and working memory.
- Understanding the neural basis of pain comparison is crucial for pain management.
Purpose of the Study:
- To investigate short-term brain activations during the comparison of pain stimuli.
- To explore the role of the brain in processing sequential pain signals.
Main Methods:
- Event-related functional magnetic resonance imaging (fMRI) was used.
- A delayed discrimination paradigm with two pain stimuli at a 10-second interval was employed.
- Healthy young volunteers performed a pain comparison task, while a control group received stimuli without comparison.
Main Results:
- The comparison task significantly increased brain activation in the anterior insular cortex and primary somatosensory area for the second pain stimulus.
- Overall stimulus-associated brain activation was heightened during the comparison task.
- Activated regions included the pain matrix (insular cortex, somatosensory areas, midcingulate cortex, supplementary motor area) and areas involved in attention, decision-making, working memory, and body recognition.
Conclusions:
- Pain comparison enhances neural responses in key pain processing and cognitive control regions.
- These findings support the concept of pain as a biological alerting system that captures attention and influences perception.
- The brain's response to pain is modulated by cognitive tasks like comparison, involving both specialized and general neural networks.
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