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Mental rotation is the ability to rotate mental representations of two-dimensional and three-dimensional objects as it is related to ... Roger Shepard and Jacqueline ...
Roger Newland Shepard (January 30, 1929 – May 30, 2022 ... He studied mental rotation, and was an inventor of non-metric multidimensional scaling, ...
The types of rotation tests used by Shepard and Metzler. One theory of the mind that was examined in these experiments was the "brain as serial computer" philosophical metaphor of the 1970s. Psychologist Zenon Pylyshyn theorized that the human mind processes mental images by decomposing them into an underlying mathematical proposition.
In 1971, Roger Shepard and Jacqueline Metzler tested Pylyshyn's particular hypothesis that all symbols are understood by the mind in virtue of their fundamental mathematical descriptions. [9] Shepard and Metzler's experiment consisted of showing a group of subjects a 2-D line drawing of a 3-D object, and then that same object at some rotation.
Shepard tables illusion, named for its creator Roger N. Shepard. Shepard tables (also known as the Shepard tabletop illusion) are an optical illusion first published in 1990 as "Turning the Tables," by Stanford psychologist Roger N. Shepard in his book Mind Sights, a collection of illusions that he had created. [1]
Example of mental rotation task stimuli. Shepard and Metzler (1971) presented a pair of three-dimensional shapes that were identical or mirror-image versions of one another. RT to determine whether they were identical or not was a linear function of the angular difference between their orientation, whether in the picture plane or in depth.
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Roger Shepard: Non-metric multidimensional scaling, Universal Law of Generalization, theories on mental rotation: Stanford University: 2007: Jeffrey L. Elman: TRACE model, Simple Recurrent Neural Network (SRNN) University of California, San Diego: 2008: Shimon Ullman: Theories of motion perception, application of visual routines, saliency maps