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Attentional bias alignment for pain: A neurophysiological approach
Eleana A Pinto1, Justine Mac Goris2, Stefaan Van Damme1
1Department of Experimental-Clinical and Health Psychology, Faculty of Psychology and Educational Sciences, Ghent University, Belgium.
The Journal of Pain
|December 20, 2025
Summary
Attentional bias (AB) towards pain information is dynamic. This study used virtual reality and EEG to show that while threat enhances somatosensory responses, AB alignment with context cues was limited, suggesting complex pain attentional processes.
Area of Science:
- Neuroscience
- Psychology
- Pain Research
Background:
- Attentional bias (AB) towards pain is linked to chronic pain development.
- Recent theories suggest AB is dynamic and context-dependent, not a fixed trait.
- A Virtual Reality (VR) paradigm, PainFlex, was developed to assess AB alignment.
Purpose of the Study:
- To investigate the context-sensitivity of AB using a VR paradigm combined with neurophysiological measures.
- To obtain an objective measure of AB by minimizing task instruction influence.
- To explore how somatosensory attention aligns with dynamic threat cues.
Main Methods:
- Integration of the PainFlex VR paradigm with electroencephalography (EEG) to record somatosensory evoked potentials (SEPs).
- Participants experienced dynamic stimuli directed at a threatened or safe hand, exposed to pain-associated (CS+) or neutral (CS-) cues.
- SEPs were measured to assess attentional responses to tactile stimuli on threatened vs. safe sides.
Main Results:
- Significantly higher N120 amplitudes at the threat location compared to the safe location, confirming AB.
- Reduced P200 amplitudes at the safe location when the non-threatened side was approached, indicating context-dependent modulation.
- No significant interaction between stimulus type (CS+/CS-) and attentional bias, contrary to hypotheses.
Conclusions:
- Findings provide partial support for the context-sensitivity of attentional bias in pain.
- Enhanced somatosensory processing in response to threat was observed.
- The study highlights the complexity of attentional processes in pain, with limited alignment to contextual cues.
- Integration of VR and EEG offers a novel approach to studying pain-related attentional bias.
