Some characteristics of tactile channels
| Autor: | Stanley J. Bolanowski, Ronald T. Verrillo, George A. Gescheider |
|---|---|
| Rok vydání: | 2004 |
| Předmět: |
Masking (art)
Time Factors Sensory system Adaptation (eye) Summation Models Biological Vibration Behavioral Neuroscience Nerve Fibers P channel Physical Stimulation Animals Humans Glabrous skin Sensitivity (control systems) Skin Physics Communication business.industry Age Factors Acoustic Stimulation Touch Sensory Thresholds Space Perception Time Perception Auditory Perception Biological system business Mechanoreceptors Perceptual Masking Communication channel |
| Zdroj: | Behavioural Brain Research. 148:35-40 |
| ISSN: | 0166-4328 |
| DOI: | 10.1016/s0166-4328(03)00177-3 |
| Popis: | The four information-processing channels of glabrous skin have distinct tuning characteristics which appear to be determined in the periphery at the level of sensory receptors and their afferent nerve fibers. The four-channel model [J Acoust Soc Am 84 (1988) 1680] has been updated to include measurement over a wider frequency range of tuning of the P and NP I channels, psychophysically determined by forward-masking and adaptation tuning curve methods. In addition to differences in their tuning, the P and NP channels differ in the following ways: (1) the P channel, but not NP channels, has been found to be capable of temporal summation, which operates by neural integration; (2) the capacity for spatial summation is also an exclusive property of the P channel; (3) sensitivity declines with age at a greater rate in the P channel than in the NP channels; (4) the masking or adaptation of a channel has no effect on the sensitivity of the other channels, although the channels interact in the summation of the perceived magnitudes of stimuli presented to separate channels. |
| Databáze: | OpenAIRE |
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