Touch Tast Nociception Nociceptie Electrocutaneous stimulation Elektrocutane stimulatie Subjective localization Subjectieve localisatie Body schema Lichaamsschema
Conditions
Interventions
Subjects receive electrocutaneous stimulati at 8 sites on their forearm. The electrode positions are hidden for the subjects by a tablet screen which presents a picture of the arm without electrodes.
Sponsors
Universiteit Twente
Eligibility
Inclusion criteria
Inclusion criteria: Healthy subjects aged 18-30 years.
Exclusion criteria
Exclusion criteria: 1. Skin condition on left arm; 2. Excessive amount of hair on left arm.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Reported perceived stimulus locations: Subjects report the perceived location of each stimulus on the tablet monitor after each trial. | — |
Secondary
| Measure | Time frame |
|---|---|
| 1. Sensation thresholds (minimum stimulus current which elicits a sensation): The stimulus current which is required to elicit a sensation using electrocutaneous stimulation differs between subjects and stimulus sites. Therefore at the start of each experiment, the sensation thresholds will be determined for each of the stimulus sites; 2. Perceived stimulus intensity and quality: Electrocutaneous stimulation can lead do different sensations depending on the innervation of the stimulus site. Large differences in quality (dull, sharp) or intensity provide unwanted clues to subjects for distinguishing the sites. Therefore. at the start of each experments, subjects will rate the quality and intensity on a continuous scale of 0-10. Electrodes of which the scores deviate from the others will be excluded from analysis. | — |
Contacts
Public ContactPeter Steenbergen
Universiteit Twente Drieneriolaan 5
Outcome results
None listed