Nuerk, H.C. and Weger, U.W. and Willmes, K. (2004) On the perceptual generality of the unit decade compatibility effect. Experimental Psychology, 51 (1). pp. 72-79. ISSN 1618-3169.
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Number magnitude is assumed to be holistically represented along a single mental number line. Recently, we have observed a unit-decade-compatibility effect which is inconsistent with that assumption (Nuerk, Weger, & Willmes, 2001). In two-digit Arabic number comparison, we have demonstrated that compatible comparisons in which separate decade and unit comparisons lead to the same decision (32_47, 3 < 4 and 2 < 7) were faster than incompatible trials (3752, 3 < 5, but 7 > 2). Because overall distance was matched, a holistic model could not account for the compatibility effect. However, one could argue that the compatibility effect was due to the specific vertical perceptual arrangement of the two-digit numbers in Nuerk et al.'s (2001) experiment where the decade digits and unit digits were presented column-wise above each other. To examine this objection, we studied the perceptual generality of the compatibility effect with diagonal presentation. We replicated the compatibility effect with diagonal presentation. It is concluded that the compatibility effect is not due to encoding characteristics imposed by the perceptual setting of the original experiment. In particular, the assumption of an overall analog magnitude representation for two-digit numbers is not consistent with these data.
|Subjects:||B Philosophy. Psychology. Religion > BF Psychology|
|Divisions:||Faculties > Social Sciences > School of Psychology|
|Depositing User:||C.A. Simms|
|Date Deposited:||24 Sep 2008 12:03|
|Last Modified:||14 Jan 2010 14:15|
|Resource URI:||http://kar.kent.ac.uk/id/eprint/4403 (The current URI for this page, for reference purposes)|
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