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Review
. 2006 Apr;13(2):201-16.
doi: 10.3758/bf03193832.

Spatial coding in two dimensions

Sandro Rubichi  1 , Kim-Phuong L Vu, Roberto Nicoletti, Robert W Proctor
Affiliations
Review

Spatial coding in two dimensions

Sandro Rubichi et al. Psychon Bull Rev. 2006 Apr.

Abstract

There has been growing interest in exploring human performance for situations in which stimuli and/or responses vary along both horizontal and vertical dimensions. Earlier studies indicated that there is a prevalence of the horizontal dimension over the vertical dimension in the spatial codes that are used for response selection. We review evidence about spatial coding for 2-D stimulus-response sets and accounts that have been proposed for explaining how it takes place. Particular attention is devoted to the relative salience account, which provides the most comprehensive explanation of 2-D spatial coding. We also evaluate the influence of speed of spatial code formation, number of reference frames, and learning on subjects' performance in 2-D tasks.

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