Author:

Keywords:

Social Sciences, Science & Technology, Life Sciences & Biomedicine, Psychology, Biological, Behavioral Sciences, Psychology, Psychology, Experimental, Test-retest reliability, Respiratory-related evoked potentials, Dyspnea, EEG, Breathlessness, EVENT-RELATED POTENTIALS, CORTICAL POTENTIALS, AIRWAY OCCLUSION, RESISTIVE LOADS, PRESSURE, SLEEP, PERCEPTION, COMPONENTS, THRESHOLD, STIMULI, Electroencephalography, Evoked Potentials, Humans, Reproducibility of Results, Sensation, METH/15/011#53372147, 1109 Neurosciences, 1701 Psychology, 1702 Cognitive Sciences, Experimental Psychology, 3209 Neurosciences, 5202 Biological psychology, 5204 Cognitive and computational psychology

Abstract:

The respiratory-related evoked potential (RREP) is an established technique to study the neural processing of respiratory sensations. We examined the test-retest reliability of the RREP during an unloaded baseline condition (no dyspnea) and an inspiratory resistive loaded breathing condition (dyspnea) over a one-week period. RREPs were evoked by short inspiratory occlusions (150 ms) while EEG was continuously measured. The mean amplitudes of the RREP components Nf, P1, N1, P2, and P3 were studied. For the no dyspnea condition, moderate test-retest reliability for Nf (intraclass correlation coefficient ICC: 0.73) and P1 (ICC: 0.74), good test-retest reliability for N1 (ICC: 0.89) and P3 (ICC: 0.76), and excellent test-retest reliability for P2 (ICC: 0.92) was demonstrated. For the dyspnea condition, moderate test-retest reliability was found for Nf (ICC: 0.69) and P1 (ICC: 0.57) and good test-retest reliability for N1 (ICC: 0.77), P2 (ICC: 0.84), and P3 (ICC: 0.77). This indicates that the RREP components Nf, P1, N1, P2, and P3, elicited by inspiratory occlusions, show adequate reliability in a test-retest study design with or without parallel sustained resistive load-induced dyspnea.