Human tactile detection thresholds: modification by inputs from specific tactile receptor classes
نویسندگان
چکیده
منابع مشابه
Regionally specific human GABA concentration correlates with tactile discrimination thresholds.
The neural mechanisms underlying variability in human sensory perception remain incompletely understood. In particular, few studies have attempted to investigate the relationship between in vivo measurements of neurochemistry and individuals' behavioral performance. Our previous work found a relationship between GABA concentration in the visual cortex and orientation discrimination thresholds (...
متن کاملDetection of tactile inputs in the rat vibrissa pathway.
The rapid detection of sensory inputs is crucial for survival. Sensory detection explicitly requires the integration of incoming sensory information and the ability to distinguish between relevant information and ongoing neural activity. In this study, head-fixed rats were trained to detect the presence of a brief deflection of their whiskers resulting from a focused puff of air. The animals sh...
متن کاملHuman Tactile Spatial Sensitivity for Tactile Feedback
In this paper, we quantify several spatial capabilities of the hmnan tactile system needed for tactile feedback, or teletaction. Psychophysics experiments measure the amplitude resolution of the human tactile system, the effects of shear stress on grating orientation discrimination, and the effects of viscoelasticity {creep and relaxation) on tactile perception for static touch. The results are...
متن کاملDissociating detection from localization of tactile stimuli.
In what they described as "a tactile analog of blindsight," Paillard et al. (1983) reported the case of a woman with damage to the left parietal cortex who was profoundly impaired in detecting tactile stimuli but could nonetheless correctly identify their location (also Rossetti et al., 1995). This stands in direct contrast to reports of neurological patients who were unable to accurately locat...
متن کاملEecient Edge Detection from Tactile Data
A real-time tactile image processing algorithm for edge contact is presented in this paper. Based on basic elasticity results, closed-form solutions for calculating contact force and local contact geometries (i.e., location and orientation of the line of contact) from the rst three moments of a tactile image are derived. Computational complexity of the proposed algorithm and those of the previo...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: The Journal of Physiology
سال: 1977
ISSN: 0022-3751
DOI: 10.1113/jphysiol.1977.sp012052