Visuo-Haptic Integration Can Either Enhance or Impede Tactile Sensitivity of the Toes Depending on Cue Validity and Stimulus Intensity

The rehabilitation of neurologically-compromised patients involves using intact, multisensory circuits. Hierarchical integrative efficiencies, however, are not well understood. By coincidentally presenting visual cues with tactile foot presentations, we psychophysically measured visuo-haptic integration across sub- to supra-threshold levels and found significant motor performance interactions with intensity.