TY - JOUR
T1 - Interactions between tactile and proprioceptive representations in haptics
AU - Rincon-Gonzalez, L.
AU - Naufel, S. N.
AU - Santos, V. J.
AU - Helms Tillery, Stephen
N1 - Funding Information:
The authors thank Rachele Valente for help with the primate experiments. This work supported partly under NSF Grant No. 0932389 (Santos), and NIH R01-NS050267 and R01-NS063372-02S1 (Helms Tillery).
PY - 2012
Y1 - 2012
N2 - Neuroprosthetic limbs, regardless of their sophisticated motor control, require sensory feedback to viably interact with the environment. Toward that aim, the authors examined interrelationships between tactile and proprioceptive sensations. Through human psychophysics experiments, they evaluated error patterns of subjects estimating hand location in a horizontal 2-dimensional workspace under 3 tactile conditions. While tactile cues did not significantly affect the structure of the pattern of errors, touching the workspace reduced estimation errors. During neurophysiological experiments, a macaque grasped textured objects using 2 hand postures. Sensory coding showed dependence on both roughness of the manipulandum and posture. In summary, the authors suggest that tactile sensations underlying haptics are processed in a stable spatial reference frame provided by a proprioceptive system, and that tactile and proprioceptive inputs can be encoded simultaneously by individual cells. Such insights will be useful for providing stable, adaptive sensory feedback for neuroprosthetics.
AB - Neuroprosthetic limbs, regardless of their sophisticated motor control, require sensory feedback to viably interact with the environment. Toward that aim, the authors examined interrelationships between tactile and proprioceptive sensations. Through human psychophysics experiments, they evaluated error patterns of subjects estimating hand location in a horizontal 2-dimensional workspace under 3 tactile conditions. While tactile cues did not significantly affect the structure of the pattern of errors, touching the workspace reduced estimation errors. During neurophysiological experiments, a macaque grasped textured objects using 2 hand postures. Sensory coding showed dependence on both roughness of the manipulandum and posture. In summary, the authors suggest that tactile sensations underlying haptics are processed in a stable spatial reference frame provided by a proprioceptive system, and that tactile and proprioceptive inputs can be encoded simultaneously by individual cells. Such insights will be useful for providing stable, adaptive sensory feedback for neuroprosthetics.
KW - feedback
KW - neuroprosthetics
KW - perception
KW - stereognosis
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U2 - 10.1080/00222895.2012.746281
DO - 10.1080/00222895.2012.746281
M3 - Review article
C2 - 23237463
AN - SCOPUS:84871434849
SN - 0022-2895
VL - 44
SP - 391
EP - 401
JO - Journal of motor behavior
JF - Journal of motor behavior
IS - 6
ER -