Force can overcome object geometry in the perception of shape through active touch

@article{RoblesDeLaTorre2001ForceCO,
  title={Force can overcome object geometry in the perception of shape through active touch},
  author={Gabriel Robles-De-La-Torre and Vincent Hayward},
  journal={Nature},
  year={2001},
  volume={412},
  pages={445-448}
}
Haptic (touch) perception normally entails an active exploration of object surfaces over time. This is called active touch. When exploring the shape of an object, we experience both geometrical and force cues. For example, when sliding a finger across a surface with a rigid bump on it, the finger moves over the bump while being opposed by a force whose direction and magnitude are related to the slope of the bump. The steeper the bump, the stronger the resistance. Geometrical and force cues are… 
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References

SHOWING 1-10 OF 35 REFERENCES
Observations on active touch.
TLDR
Preliminary results indicate that the cross-modal matching of these novel preceptions is possible even for a naive observer, and that practice can bring about errorless judgments in all observers so far tested.
The haptic perception of curvature
TLDR
It was shown that the present absolute thresholds for curvature are lower than those previously reported, which suggests that haptically perceived curvature may be a metathetic rather than a prothetic continuum.
Hand movements: A window into haptic object recognition
Similar mechanisms underlie curvature comparison by static and dynamic touch
TLDR
It is concluded that similar mechanisms underlie static and dynamic haptic curvature comparison, which is not only qualitatively, but also quantitatively similar.
Proprioception with the proximal interphalangeal joint of the index finger. Evidence for a movement sense without a static-position sense.
TLDR
It was confirmed that sensory input from regions of skin not stretched or deformed by rotation of the joint can influence proprioceptive sensibility with the fingers.
Detection of slow movements imposed at the elbow during active flexion in man.
TLDR
Movements which cause unloading of the contracting agonist, as well as movements which result in stretch, are more easily detected than when the muscle is contracting, indicating that conscious detection of imposed movements is greatly enhanced during active muscle contraction.
Detections of movements imposed on finger, elbow and shoulder joints.
TLDR
Analysis in terms of proportional changes of muscle length showed remarkably similar performance levels at both joints, which suggests that intramuscular receptors are important determinants of proprioceptive performance.
Handbook of perception and human performance
TLDR
This handbook covers theory and methods; basic visual processes; auditory, kinesthetic, cutaneous, and vestibular senses; and space and motion perception; and human performance.
Computational haptics: the sandpaper system for synthesizing texture for a force-feedback display
Thesis (Ph. D.)--Massachusetts Institute of Technology, Program in Media Arts & Sciences, 1995.
Flagellar and twitching motility are necessary for Pseudomonas aeruginosa biofilm development
TLDR
The isolation and characterization of mutants of Pseudomonas aeruginosa PA14 defective in the initiation of biofilm formation on an abiotic surface, polyvinylchloride (PVC) plastic are reported and evidence that microcolonies form by aggregation of cells present in the monolayer is presented.
...
1
2
3
4
...