Nociceptive laser-evoked brain potentials do not reflect nociceptive-specific neural activity
- PMID: 19339457
- DOI: 10.1152/jn.91181.2008
Nociceptive laser-evoked brain potentials do not reflect nociceptive-specific neural activity
Erratum in
- J Neurophysiol. 2010 Feb;103(2):1145
Abstract
Brief radiant laser pulses can be used to activate cutaneous Adelta and C nociceptors selectively and elicit a number of transient brain responses [laser-evoked potentials (LEPs)] in the ongoing EEG. LEPs have been used extensively in the past 30 years to gain knowledge about the cortical mechanisms underlying nociception and pain in humans, by assuming that they reflect at least neural activities uniquely or preferentially involved in processing nociceptive input. Here, by applying a novel blind source separation algorithm (probabilistic independent component analysis) to 124-channel event-related potentials elicited by a random sequence of nociceptive and non-nociceptive somatosensory, auditory, and visual stimuli, we provide compelling evidence that this assumption is incorrect: LEPs do not reflect nociceptive-specific neural activity. Indeed, our results indicate that LEPs can be entirely explained by a combination of multimodal neural activities (i.e., activities also elicited by stimuli of other sensory modalities) and somatosensory-specific, but not nociceptive-specific, neural activities (i.e., activities elicited by both nociceptive and non-nociceptive somatosensory stimuli). Regardless of the sensory modality of the eliciting stimulus, the magnitude of multimodal activities correlated with the subjective rating of saliency, suggesting that these multimodal activities are involved in stimulus-triggered mechanisms of arousal or attentional reorientation.
Comment in
-
Are there nociceptive-specific brain potentials?J Neurophysiol. 2009 Nov;102(5):3073-4; author reply 3075-6. doi: 10.1152/jn.00588.2009. J Neurophysiol. 2009. PMID: 19889859 No abstract available.
Similar articles
-
A multisensory investigation of the functional significance of the "pain matrix".Neuroimage. 2011 Feb 1;54(3):2237-49. doi: 10.1016/j.neuroimage.2010.09.084. Epub 2010 Oct 12. Neuroimage. 2011. PMID: 20932917
-
Stimulus novelty, and not neural refractoriness, explains the repetition suppression of laser-evoked potentials.J Neurophysiol. 2010 Oct;104(4):2116-24. doi: 10.1152/jn.01088.2009. Epub 2010 Jun 30. J Neurophysiol. 2010. PMID: 20592123
-
Human brain responses to concomitant stimulation of Aδ and C nociceptors.J Neurosci. 2014 Aug 20;34(34):11439-51. doi: 10.1523/JNEUROSCI.1355-14.2014. J Neurosci. 2014. PMID: 25143623 Free PMC article.
-
Steady-state evoked potentials to study the processing of tactile and nociceptive somatosensory input in the human brain.Neurophysiol Clin. 2012 Oct;42(5):315-23. doi: 10.1016/j.neucli.2012.05.005. Epub 2012 Jun 22. Neurophysiol Clin. 2012. PMID: 23040702 Review.
-
Electrophysiology in diagnosis and management of neuropathic pain.Rev Neurol (Paris). 2019 Jan-Feb;175(1-2):26-37. doi: 10.1016/j.neurol.2018.09.015. Epub 2018 Oct 26. Rev Neurol (Paris). 2019. PMID: 30482566 Review.
Cited by
-
Electroencephalography-Based Effects of Acute Alcohol Intake on the Pain Matrix.Brain Sci. 2023 Nov 30;13(12):1659. doi: 10.3390/brainsci13121659. Brain Sci. 2023. PMID: 38137107 Free PMC article.
-
The blink reflex and its modulation - Part 1: Physiological mechanisms.Clin Neurophysiol. 2024 Apr;160:130-152. doi: 10.1016/j.clinph.2023.11.015. Epub 2023 Nov 30. Clin Neurophysiol. 2024. PMID: 38102022 Review.
-
Evoked EEG Responses to TMS Targeting Regions Outside the Primary Motor Cortex and Their Test-Retest Reliability.Brain Topogr. 2024 Jan;37(1):19-36. doi: 10.1007/s10548-023-01018-y. Epub 2023 Nov 23. Brain Topogr. 2024. PMID: 37996562 Free PMC article.
-
A Cortical Mechanism Linking Saliency Detection and Motor Reactivity in Rhesus Monkeys.J Neurosci. 2024 Jan 3;44(1):e0422232023. doi: 10.1523/JNEUROSCI.0422-23.2023. J Neurosci. 2024. PMID: 37949654 Free PMC article.
-
The influence of aggressive exercise on responses to self-perceived and others' pain.Cereb Cortex. 2023 Oct 14;33(21):10802-10812. doi: 10.1093/cercor/bhad324. Cereb Cortex. 2023. PMID: 37715469 Free PMC article.
Publication types
MeSH terms
LinkOut - more resources
Full Text Sources
Medical
Miscellaneous