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Posing for awareness: proprioception modulates access to visual consciousness in a continuous flash suppression task.

Roy Salomon¹, Melanie Lim, Bruno Herbelin

¹Center for Neuroprosthetics, School of Life Sciences, Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland. roy.salomon@epfl.ch

Journal of Vision

|June 5, 2013

Summary

Proprioception, the sense of body position, influences visual consciousness. When visual and actual body positions match, visual awareness improves, demonstrating a proprioceptive bias in perception.

Keywords:

bodily consciousness consciousness continuous flash suppression proprioception

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Area of Science:

Neuroscience
Cognitive Science
Psychology

Background:

Visual perception is often considered dominant over other senses.
The influence of bodily senses, like proprioception, on visual consciousness is understudied.
Understanding sensory integration is key to understanding consciousness.

Purpose of the Study:

To investigate whether body position influences visual consciousness.
To determine if proprioception has a bias effect on visual awareness.
To explore the interplay between somatosensory and visual systems in conscious perception.

Main Methods:

Utilized continuous flash suppression (CFS) to induce perceptual suppression.
Participants judged the orientation of a target visual stimulus.
Manipulated congruency between a viewed hand image and the participant's actual hand position.

Main Results:

Perceptual suppression was broken more rapidly when the viewed hand position was congruent with the participant's actual hand position.
Incongruent hand positions led to prolonged perceptual suppression.
Demonstrated a significant effect of proprioception on breaking visual suppression.

Conclusions:

Provided the first evidence for a proprioceptive bias in visual consciousness.
Suggests proprioception significantly impacts not only self-perception but also visual awareness.
Highlights the crucial role of body sense in shaping what we consciously see.