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Updated: May 9, 2026
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Utilizing Transcranial Magnetic Stimulation to Study the Human Neuromuscular System
Published on: January 20, 2012
Common (and multiple) neural substrates for static and dynamic motion after-effects: a rTMS investigation
Gianluca Campana1, Marcello Maniglia, Andrea Pavan
1University of Padova, Department of General Psychology, Padova, Italy.
Summary
Motion after-effects (MAE) involve visual areas V2/V3 and V5/MT. Repetitive transcranial magnetic stimulation (rTMS) confirmed these areas process static MAE (sMAE) and dynamic MAE (dMAE), with V2/V3 showing specialization for sMAE.
Area of Science:
- Neuroscience
- Visual Perception
- Cognitive Science
Background:
- Motion after-effect (MAE) is a visual illusion where prolonged exposure to motion biases perception.
- Different neural populations contribute to MAE based on stimulus characteristics.
- The precise cortical locations for various MAEs remain debated.
Purpose of the Study:
- To investigate the cortical locus of static MAE (sMAE) and dynamic MAE (dMAE).
- To determine the role of specific visual areas in processing different types of MAE.
Main Methods:
- Utilized repetitive transcranial magnetic stimulation (rTMS) during the inter-stimulus interval (ISI).
- Applied rTMS over visual areas V2/V3 and V5/MT.
- Assessed the impact of rTMS on the perceived duration of sMAE and dMAE.
Main Results:
- rTMS over V2/V3 or V5/MT reduced the perceived duration of both sMAE and dMAE.
- rTMS specifically over V2/V3 predominantly decreased the perceived duration of sMAE.
- rTMS over V5/MT affected both sMAE and dMAE duration.
Conclusions:
- sMAE and dMAE involve shared cortical structures in low and intermediate visual processing levels.
- Low-level visual areas like V2/V3 are crucial for MAE processing.
- V2/V3 exhibit a higher concentration of neurons processing sMAE compared to dMAE.
