EEG frequency tagging
Studies have shown that the periodic repetition or modulation of a stimulus can induce a sustained periodic EEG response at the frequency of stimulation and its harmonics, often referred to as steady-state evoked potential (SS-EP). Unlike event-related potentials (ERPs), which reflect phasic cortical activity triggered by a transient stimulus. SS-EPs reflect sustained cortical activity induced by the entrainment of neuronal populations responding to the stimulus. Our objective is to exploit this "EEG frequency-tagging" technique to explore the cortical activity underlying the perception of sustained pain in humans. This is achieved, for example, using a temperature-controlled CO2 laser stimulator to periodically activate heat-sensitive nociceptors of the skin. Using this technique, we showed that it is possible to isolate cortical activity specifically related to the activation of heat-sensitive C-fiber nociceptors.

Researchers involved
Publications
2020
Dynamics of the perception and EEG signals triggered by tonic warm and cool stimulation
PLoS ONE
Mulders D, de Bodt C, Lejeune N, Dufour A, Verleysen M, Mouraux A.
15(4):e0231698
2018
Spatial Filtering of EEG Signals to Identify Periodic Brain Activity Patterns
Latent Variable Analysis and Signal Separation LVA/ICA
Mulders D, de Bodt C, Lejeune N, Mouraux A, Verleysen M.
In: Deville Y, Gannot S, Mason R, Plumbley M, Ward D (eds). Lecture notes in Computer Science, vol 10891. Springer
2016
EEG frequency tagging using ultra-slow periodic heat stimulation of the skin reveals cortical activity specifically related to C fiber thermonociceptors
Neuroimage
Colon E, Liberati G, Mouraux A.
146:266-274
2016
Absence of Evidence or Evidence of Absence? Commentary: Captured by the pain: Pain steady-state evoked potentials are not modulated by selective spatial attention
Frontiers in Human Neuroscience
Colon E, Mouraux A.
0.175
2015
Frequency-tagging of steady-state evoked potentials to explore the crossmodal links in spatial attention between vision and touch
Psychophysiology
Colon E, Huang G, Legrain V, Mouraux A.
2014
EEG frequency-tagging to dissociate the cortical responses to nociceptive and non-nociceptive stimuli
Journal of Cognitive Neuroscience
Colon E, Legrain V, Mouraux A.
26(10):2262-74
2012
Steady-state evoked potentials to study the processing of tactile and nociceptive somatosensory input in the human brain
Neurophysiologie Clinique - Clinical Neurophysiology
Colon E, Legrain V, Mouraux A.
42(5):315-23
2011
Steady-state evoked potentials to tag specific components of nociceptive cortical processing
Neuroimage
Colon E, Nozaradan S, Legrain V, Mouraux A.
60(1):571-581
2011
Nociceptive steady-state evoked potentials elicited by rapid periodic thermal stimulation of cutaneous nociceptors
Journal of Neuroscience
Mouraux A, Iannetti GD, Colon E, Legrain V, Nozaradan S, Plaghki L.
31(16): 6079-87