Influence of Response Criterion on Nociceptive Detection Thresholds and Evoked Potentials

Author:

van den Berg BoudewijnORCID,Vanwinsen L.,Pezzali G.,Buitenweg Jan R.ORCID

Abstract

AbstractPain scientists and clinicians search for objective measures of altered nociceptive processing to study and stratify chronic pain patients. Nociceptive processing can be studied by observing a combination of nociceptive detection thresholds and evoked potentials. However, it is unknown whether the nociceptive detection threshold measured using a Go-/No-Go (GN) procedure can be biased by a response criterion. In this study, we compared nociceptive detection thresholds, psychometric slopes and central evoked potentials obtained during a GN procedure with those obtained during a 2-interval forced choice (2IFC) procedure to determine 1) if the nociceptive detection threshold during a GN procedure is biased by a criterion and 2) to determine if nociceptive evoked potentials observed in response to stimuli around the detection threshold are biased by a criterion. We found that the detection threshold can be higher when assessed using a GN procedure in comparison with the 2IFC procedure. The average P2 component in the central evoked potential showed on-off behavior with respect to stimulus detection and increased proportionally with the detection probability during a GN procedure. These data suggest that nociceptive detection thresholds estimated using a GN procedure are subject to a response criterion.

Publisher

Cold Spring Harbor Laboratory

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