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Related Experiment Video

Updated: Feb 23, 2026

Investigating the Deployment of Visual Attention Before Accurate and Averaging Saccades via Eye Tracking and Assessment of Visual Sensitivity

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Published on: March 18, 2019

Touch Precision Modulates Visual Bias.

Giovanni F Misceo¹, Maurice D Jones²

¹a Department of Psychology , International University of Sarajevo , Bosnia and Herzegovina.

Journal of Motor Behavior

|August 30, 2017

Summary

This summary is machine-generated.

When touch becomes less reliable, visual cues influence our perception of an object's size. This study on sensory precision shows vision can bias touch perception when tactile information is degraded.

Keywords:

intersensory integration size perception touch perception visual perception

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Last Updated: Feb 23, 2026

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Area of Science:

Psychology
Neuroscience
Sensory Perception

Background:

The sensory precision hypothesis suggests that perception defaults to the most reliable sensory input.
Understanding how different sensory modalities integrate and influence each other is crucial for cognitive science.

Purpose of the Study:

To investigate the sensory precision hypothesis by examining how visual and tactile size cues interact.
To determine if visual information biases tactile perception when touch reliability is experimentally reduced.

Main Methods:

Sixty college students participated in a size perception task.
Participants viewed one object size while manually exploring a different unseen object size, with touch reliability manipulated using bare fingers or rigid tubes.
Estimates of perceived size were made by matching to a visual display.

Main Results:

Visual size cues significantly biased tactile size estimates when the reliability of touch was decreased (using tubes).
This indicates that visual information can override or influence tactile perception under conditions of reduced tactile reliability.

Conclusions:

Findings support the sensory precision hypothesis and statistically optimal models of sensory integration.
The study demonstrates a clear interaction between the reliability of touch and visual bias in size perception.