Long integration time for accelerating and decelerating visual, tactile and visuo-tactile Stimuli

Concetta Morrone, Marco Jacono, Alessandra Sciutti, Monica Gori, David C. Burr, Giulio Sandini

Research output: Contribution to journalArticle

Abstract

The human visual system is good at discriminating speed but not acceleration. However, as speed is seldom constant, it is important to be able to extract speed in conditions of acceleration and deceleration. decelerations in a 2IFC procedure. Both visual and tactile stimuli were generated on physical wheels etched with a sinusoidal profile. During different experimental sessions the wheels could be seen, or touched, or both. Comparisons between different unimodal and bimodal matched speeds revealed similar integration times for the two modalities, in both cases around one second, suggesting that it occurs at a relatively high level of processing. Bimodal precision of speed discrimination was better than unimodal discrimination, as predicted by the maximum likelihood model of optimal integration.

Original languageEnglish
Pages (from-to)53-68
Number of pages16
JournalMultisensory research
Volume26
Issue number1-2
DOIs
Publication statusPublished - 2013

Keywords

  • acceleration
  • deceleration
  • multisensory integration
  • temporal integration
  • touch
  • Vision

ASJC Scopus subject areas

  • Computer Vision and Pattern Recognition
  • Ophthalmology
  • Cognitive Neuroscience
  • Sensory Systems
  • Experimental and Cognitive Psychology
  • Medicine(all)

Fingerprint Dive into the research topics of 'Long integration time for accelerating and decelerating visual, tactile and visuo-tactile Stimuli'. Together they form a unique fingerprint.

  • Cite this