A signal-detection determination of the two-point supraliminal difference limen on three different body areas.
This investigation was designed to determine the relationship between the tactual two-point threshold and the two-point supraliminal difference limen. The yes/no method was employed and three localities were tested. The results confirmed the hypothesis that as the initial two-point threshold increases, the two-point supraliminal difference limen also increases. No significant differences were obtained between the right and the left sides of each body area tested and only on the hand was a reliable difference obtained between the first 9 and second 9 sessions. This difference was interpreted in terms of a peripheral fatigue phenomenon.
D000161:Acoustic Stimulation; D000328:Adult; D004056:Differential Threshold; D004192:Discrimination, Psychological; D005221:Fatigue / Q000150:complications; D005260:Female; D005542:Forearm / Q000294:innervation; D006225:Hand / Q000294:innervation; D006801:Humans; D012867:Skin / Q000294:innervation; D013848:Thigh / Q000294:innervation; D013997:Time Factors; D014110:Touch