Abstract
This article contains intensity and aversiveness ratings of electrical stimuli and data on electrodermal activity (skin conductance level and skin conductance response) during an implicit conditioning procedure. Further, answers from a questionnaire on contingency awareness are provided. The experiment consisted of three phases. In the acquisition, two types of visual stimuli (CS+ and CS-) were coupled to weakly and moderately painful electrical stimuli presented to the participants’ (N = 48) dominant hand. In the test phase, after both CS+ and CS- only the weakly painful electrical stimuli were presented. In the contingency test phase, no more electrical stimuli were presented and participants had the task to rate intensity and aversiveness as if an electrical stimulus had been presented. This phase served as a test for first-order contingency awareness. Afterwards participants filled in a questionnaire with five questions to assess their level of second-order contingency awareness. For more insight, please see Nocebo hyperalgesia induced by implicit conditioning (Bräscher and Witthöft, 2019).
Highlights
SampleThe sample consisted of 48 healthy participants (M 1⁄4 25.79 years, SD 1⁄4 4.45; 25 females)
Electrodermal activity (EDA) was analyzed by means of continuous decomposition analysis (CDA) with a response window of 1e4 seconds after the onset of the respective picture and an amplitude threshold of 0.01 mS
This time interval corresponds to the first interval response (FIR), which in differential conditioning designs has shown to be most effective in detecting conditioned responses
Summary
The sample consisted of 48 healthy participants (M 1⁄4 25.79 years, SD 1⁄4 4.45; 25 females). Exclusion criteria comprised chronic or current acute pain, intake of pain medication or psychotropics, diabetes, hypertension, cardiopathy, thyroid disease, renal insufficiency, hepatic dysfunction, epilepsy, stroke, Parkinson's disease, multiple sclerosis, psychiatric or neurologic diagnoses, intake of illegal drugs, alcohol, medication, or drug abuse, pregnancy, and left-handedness. Participants gave written informed consent prior to the study. The experimental protocol was conducted in accordance with the Declaration of Helsinki (2008) and approved by the Local Ethics Committee
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
