Human tactile discrimination of pulse shape is possible without preadaptation

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Abstract
Can humans perceive the kinematic shape of very short tactile events? Textures impose such short events, frictional slips, which could be used for their discrimination. Using a pulse shape discrimination paradigm that enforces local analysis, we find that even the shape of isolated pulsatile skin deflections can be discriminated by humans. Providing an adaptive series of pulses, however, improves the performance, showing that the adaptive context plays an important role in instantaneous shape discrimination.
Funding Information
  • Deutsche Forschungsgemeinschaft (SCHW577/14-2)
  • Deutsche Forschungsgemeinschaft (SCHW577/14-3)

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