Perceptual Learning: Inverting the Size–Weight Illusion
نویسنده
چکیده
When one lifts two objects of equal weight and appearance but different size, the smaller object usually feels heavier. New results show that this size-weight illusion can be inverted after extensive training with objects in which the natural size-weight relationship is artificially reversed.
منابع مشابه
Experimental demonstration of the sensory basis of the size-weight illusion.
An important part of the literature on the size-weight illusion ascribes great importance to expectancies as determinants of the illusion itself. The aim of the experiments reported here was to establish whether the size-weight illusion was sensorial or was caused directly by an expectancy. In Exporiment 3, which was the crucial experiment, subjects first looked at an object (from a 3 ×5, size ...
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An embodied approach to the perception of spatial layout contends that the body is used as a 'perceptual ruler' with which individuals scale the perceived environmental layout. In support of this notion, previous research has shown that the perceived size of objects can be influenced by changes in the apparent size of hand. The size-weight illusion is a well known phenomenon, which occurs when ...
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Perception is often influenced by context. A well-known class of perceptual context effects is perceptual contrast illusions, in which proximate stimulus regions interact to alter the perception of various stimulus attributes, such as perceived brightness, color and size. Although the phenomenal reality of contrast effects is well documented, in many cases the connection between these illusions...
متن کاملLinking actions and objects: Context-specific learning of novel weight priors.
Distinct explicit and implicit memory processes support weight predictions used when lifting objects and making perceptual judgments about weight, respectively. The first time that an object is encountered weight is predicted on the basis of learned associations, or priors, linking size and material to weight. A fundamental question is whether the brain maintains a single, global representation...
متن کاملSize Matters: A Single Representation Underlies Our Perceptions of Heaviness in the Size-Weight Illusion
In the size-weight illusion (SWI), a small object feels heavier than an equally-weighted larger object. It is thought that this illusion is a consequence of the way that we internally represent objects' properties--lifters expect one object to outweigh the other, and the subsequent illusion reflects a contrast with their expectations. Similar internal representations are also thought to guide t...
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عنوان ژورنال:
- Current Biology
دوره 19 شماره
صفحات -
تاریخ انتشار 2009