Early interaction between vision and touch during binocular rivalry

M. Concetta Morrone, Claudia Lunghi

Research output: Contribution to journalArticle

Abstract

Multisensory integration is known to occur at high neural levels, but there is also growing evidence that cross-modal signals can be integrated at the first stages of sensory processing. We investigated whether touch specifically affected vision during binocular rivalry, a particular type of visual bistability that engages neural competition in early visual cortices.We found that tactile signals interact with visual signals outside of awareness, when the visual stimulus congruent with the tactile one is perceptually suppressed during binocular rivalry and when the interaction is strictly tuned for matched visuo-tactile spatial frequencies. We also found that voluntary action does not play a leading role in mediating the effect, since the interaction was observed also when tactile stimulation was passively delivered to the finger. However, simultaneous presentation of visual and tactile stimuli is necessary to elicit the interaction, and an asynchronous priming touch stimulus is not affecting the onset of rivalry. These results point to a very early cross-modal interaction site, probably V1. By showing that spatial proximity between visual and tactile stimuli is a necessary condition for the interaction, we also suggest that the two sensory spatial maps are aligned according to retinotopic coordinates, corroborating the hypothesis of a very early interaction between visual and tactile signals during binocular rivalry.

Original languageEnglish
Pages (from-to)291-306
Number of pages16
JournalMultisensory research
Volume26
Issue number3
DOIs
Publication statusPublished - 2013

Fingerprint

Binoculars
Touch
Binocular vision
Processing
Binocular Vision
Visual Cortex
Fingers

Keywords

  • Binocular rivalry
  • multisensory integration
  • psychophysics
  • touch
  • vision

ASJC Scopus subject areas

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

Cite this

Early interaction between vision and touch during binocular rivalry. / Morrone, M. Concetta; Lunghi, Claudia.

In: Multisensory research, Vol. 26, No. 3, 2013, p. 291-306.

Research output: Contribution to journalArticle

@article{b3cbd63ac19c4f8caf61855f7b8ac0bc,
title = "Early interaction between vision and touch during binocular rivalry",
abstract = "Multisensory integration is known to occur at high neural levels, but there is also growing evidence that cross-modal signals can be integrated at the first stages of sensory processing. We investigated whether touch specifically affected vision during binocular rivalry, a particular type of visual bistability that engages neural competition in early visual cortices.We found that tactile signals interact with visual signals outside of awareness, when the visual stimulus congruent with the tactile one is perceptually suppressed during binocular rivalry and when the interaction is strictly tuned for matched visuo-tactile spatial frequencies. We also found that voluntary action does not play a leading role in mediating the effect, since the interaction was observed also when tactile stimulation was passively delivered to the finger. However, simultaneous presentation of visual and tactile stimuli is necessary to elicit the interaction, and an asynchronous priming touch stimulus is not affecting the onset of rivalry. These results point to a very early cross-modal interaction site, probably V1. By showing that spatial proximity between visual and tactile stimuli is a necessary condition for the interaction, we also suggest that the two sensory spatial maps are aligned according to retinotopic coordinates, corroborating the hypothesis of a very early interaction between visual and tactile signals during binocular rivalry.",
keywords = "Binocular rivalry, multisensory integration, psychophysics, touch, vision",
author = "Morrone, {M. Concetta} and Claudia Lunghi",
year = "2013",
doi = "10.1163/22134808-00002411",
language = "English",
volume = "26",
pages = "291--306",
journal = "Multisensory research",
issn = "2213-4794",
publisher = "Brill",
number = "3",

}

TY - JOUR

T1 - Early interaction between vision and touch during binocular rivalry

AU - Morrone, M. Concetta

AU - Lunghi, Claudia

PY - 2013

Y1 - 2013

N2 - Multisensory integration is known to occur at high neural levels, but there is also growing evidence that cross-modal signals can be integrated at the first stages of sensory processing. We investigated whether touch specifically affected vision during binocular rivalry, a particular type of visual bistability that engages neural competition in early visual cortices.We found that tactile signals interact with visual signals outside of awareness, when the visual stimulus congruent with the tactile one is perceptually suppressed during binocular rivalry and when the interaction is strictly tuned for matched visuo-tactile spatial frequencies. We also found that voluntary action does not play a leading role in mediating the effect, since the interaction was observed also when tactile stimulation was passively delivered to the finger. However, simultaneous presentation of visual and tactile stimuli is necessary to elicit the interaction, and an asynchronous priming touch stimulus is not affecting the onset of rivalry. These results point to a very early cross-modal interaction site, probably V1. By showing that spatial proximity between visual and tactile stimuli is a necessary condition for the interaction, we also suggest that the two sensory spatial maps are aligned according to retinotopic coordinates, corroborating the hypothesis of a very early interaction between visual and tactile signals during binocular rivalry.

AB - Multisensory integration is known to occur at high neural levels, but there is also growing evidence that cross-modal signals can be integrated at the first stages of sensory processing. We investigated whether touch specifically affected vision during binocular rivalry, a particular type of visual bistability that engages neural competition in early visual cortices.We found that tactile signals interact with visual signals outside of awareness, when the visual stimulus congruent with the tactile one is perceptually suppressed during binocular rivalry and when the interaction is strictly tuned for matched visuo-tactile spatial frequencies. We also found that voluntary action does not play a leading role in mediating the effect, since the interaction was observed also when tactile stimulation was passively delivered to the finger. However, simultaneous presentation of visual and tactile stimuli is necessary to elicit the interaction, and an asynchronous priming touch stimulus is not affecting the onset of rivalry. These results point to a very early cross-modal interaction site, probably V1. By showing that spatial proximity between visual and tactile stimuli is a necessary condition for the interaction, we also suggest that the two sensory spatial maps are aligned according to retinotopic coordinates, corroborating the hypothesis of a very early interaction between visual and tactile signals during binocular rivalry.

KW - Binocular rivalry

KW - multisensory integration

KW - psychophysics

KW - touch

KW - vision

UR - http://www.scopus.com/inward/record.url?scp=84886872739&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84886872739&partnerID=8YFLogxK

U2 - 10.1163/22134808-00002411

DO - 10.1163/22134808-00002411

M3 - Article

C2 - 23964481

AN - SCOPUS:84886872739

VL - 26

SP - 291

EP - 306

JO - Multisensory research

JF - Multisensory research

SN - 2213-4794

IS - 3

ER -