Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

Monocular size and distance scaling is modulated by the presence of a fixation point.

Attention, perception & psychophysics·2026

Same author

The role of the caudate nucleus in taste function: a comprehensive narrative review.

Frontiers in neuroscience·2026

Same author

Visual awareness of stimulus features shapes motor control through action end-state comfort.

Scientific reports·2026

Same author

Neural dynamics of visuospatial endogenous attention: Event-related optical signal evidence from posterior brain areas.

Imaging neuroscience (Cambridge, Mass.)·2026

Same author

Acute technostress, schizotypal traits, and visual illusion perception in the general population.

Experimental brain research·2026

Same author

Contextual Updating in Attentional Orienting Relies on the Right Temporoparietal Junction: Evidence From rTMS.

The European journal of neuroscience·2026

Same journal

A portable solution for simultaneous human movement and mobile EEG acquisition: readiness potential for basketball free-throw shooting.

Experimental brain research·2026

Same journal

Effects of tDCS and tACS on operant tactile training: investigating individual differences in neuromodulation efficacy.

Experimental brain research·2026

Same journal

Investigating the effects of different exercise protocols on depressive-like behaviors and brain-derived neurotrophic factor (BDNF) in rodents: a systematic review.

Experimental brain research·2026

Same journal

Inward platform translations during treadmill walking enhance lateral weight shift and paretic leg engagement in chronic stroke.

Experimental brain research·2026

Same journal

Effects of lumbar disc injury and nociception on trunk motor control during rat locomotion.

Experimental brain research·2026

Same journal

Changes in synergy formation and modulation during cyclic finger force production tasks in female adults with dystonic cerebral palsy.

Experimental brain research·2026

See all related articles

Search research articles

Related Experiment Video

Updated: Jun 20, 2026

Driving Simulation in the Clinic: Testing Visual Exploratory Behavior in Daily Life Activities in Patients with Visual Field Defects

Driving Simulation in the Clinic: Testing Visual Exploratory Behavior in Daily Life Activities in Patients with Visual Field Defects

Published on: September 18, 2012

Is simple reaction time affected by visual illusions?

Irene Sperandio¹, Silvia Savazzi, Carlo A Marzi

¹Department of Neurological and Visual Sciences, University of Verona and National Institute of Neuroscience, Verona, Italy. isperand@uwo.ca

Experimental Brain Research

|September 29, 2009

Summary

This summary is machine-generated.

Visuomotor reaction time (RT) is deceived by visual illusions, suggesting the ventral stream, not the dorsal stream, guides immediate motor responses to perceived stimuli.

More Related Videos

Measuring Attention and Visual Processing Speed by Model-based Analysis of Temporal-order Judgments

Measuring Attention and Visual Processing Speed by Model-based Analysis of Temporal-order Judgments

Published on: January 23, 2017

A Gaze-Contingent Display Framework for Perceptual Learning Research with Simulated Central Vision Loss

A Gaze-Contingent Display Framework for Perceptual Learning Research with Simulated Central Vision Loss

Published on: April 11, 2025

Related Experiment Videos

Last Updated: Jun 20, 2026

Driving Simulation in the Clinic: Testing Visual Exploratory Behavior in Daily Life Activities in Patients with Visual Field Defects

Driving Simulation in the Clinic: Testing Visual Exploratory Behavior in Daily Life Activities in Patients with Visual Field Defects

Published on: September 18, 2012

Measuring Attention and Visual Processing Speed by Model-based Analysis of Temporal-order Judgments

Measuring Attention and Visual Processing Speed by Model-based Analysis of Temporal-order Judgments

Published on: January 23, 2017

A Gaze-Contingent Display Framework for Perceptual Learning Research with Simulated Central Vision Loss

A Gaze-Contingent Display Framework for Perceptual Learning Research with Simulated Central Vision Loss

Published on: April 11, 2025

Area of Science:

Neuroscience
Cognitive Psychology
Visual Perception

Background:

Pictorial illusions deceive perceptual judgment but not grasping/motor behavior.
This dissociation supports distinct ventral (vision-for-perception) and dorsal (vision-for-action) cortical streams.
The ventral stream is illusion-sensitive; the dorsal stream is not.

Purpose of the Study:

To investigate whether visuomotor reaction time (RT) to illusory figures follows ventral or dorsal stream rules.
To clarify the distinct functions of the two visual streams in motor behavior.

Main Methods:

Two experiments were conducted using the Ponzo illusion and the Ebbinghaus-Titchener illusion.
Visuomotor reaction time (RT) was measured in response to illusory stimuli.

Main Results:

Reaction time (RT) was sensitive to both the Ponzo and Ebbinghaus-Titchener illusions.
Faster responses were observed for stimuli that appeared illusorily larger.

Conclusions:

Motor actions that directly report a target's presence are subserved by the ventral system.
Motor actions requiring spatial adjustments based on physical features are not solely governed by the ventral system.