Temporal summation effects on lingual vibrotactile thresholds.
Ascending lingual vibrotactile thresholds at 250 Hz were obtained for four groups of normal-speaking adult subjects. Stimulus durations were varied for each respective group. Threshold values plotted as a function of stimulus duration indicated a temporal summation function occurring up to 200 msec. Findings are discussed in terms of underlying peripheral receptors and some implications for using summation measures as a basis for identifying oral sensory disorders.
D000328:Adult; D004056:Differential Threshold; D004192:Discrimination, Psychological; D006801:Humans; D008465:Mechanoreceptors / Q000502:physiology; D013060:Speech / Q000502:physiology; D013064:Speech Disorders / Q000175:diagnosis; D013997:Time Factors; D014059:Tongue / Q000294:innervation / Q000502:physiology*; D014110:Touch / Q000502:physiology*; D014732:Vibration