The Japanese Journal of Mental Imagery
Online ISSN : 2434-3595
Print ISSN : 1349-1903
Working Memory and Visually Generated Images
Tadamasa Narimoto
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2020 Volume 17 Issue 1 Pages 41-44

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Abstract

The present study investigated whether a mentally created visual image is retained in a visuospatial sketchpad or an episodic buffer in a multi-component model of working memory(Baddeley,  1986). Functions of the episodic buffer require cognitive resources of the central executive. Four experiments were introduced here. Results in these experiments showed that a mentally created visual image was retained in the episodic buffer, not in the visuospatial sketchpad. On the other hand, perceptually encoded visual information was retained in the visuospatial sketchpad. Interestingly, even though both the created image and the perceptual information are to be retained in the form of visual representation, each type of visual representation involves different component. It could be argued that retaining a mentally created visual image continually requires mental manipulations(e.g.,  adjusting the size to fit in a mental space). However, mental manipulation during the retention of perceptually encoded visual information would not be required if the information is recalled just as it is. This may be the reason why the created image is retained in the episodic buffer.

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