Laterality, Perception, And Action During The Size-Weight Illusion, 2009 The University of Western Ontario
Laterality, Perception, And Action During The Size-Weight Illusion, Gavin Buckingham, Nathalie Ranger, Melvyn Goodale
In the classic size-weight illusion (SWI), a small object will feel heavier than an larger object of equal weight (Charpentier, 1891). Individuals continue to perceive this illusory difference in weight long after their gripping and lifting forces have scaled to the actual, identical, mass of the illusion-inducing stimuli (Flanagan & Beltzner, 2000).
The independence of our weight perception and fingertip force application has only been quantified in the right hand of right-handers. The immunity to this perceptual illusion may be affected by manual asymmetries (e.g., Gonzalez, Ganel & Goodale, 2006).
We examined perception of heaviness and fingertip force scaling in …