On the limits of language influences on numerical cognition – No inversion effects in three-digit number magnitude processing in adults

Autor: Julia eBahnmueller, Korbinian eMoeller, Anne eMann, Hans-Christoph eNuerk
Jazyk: angličtina
Rok vydání: 2015
Předmět:
Zdroj: Frontiers in Psychology, Vol 6 (2015)
Druh dokumentu: article
ISSN: 1664-1078
DOI: 10.3389/fpsyg.2015.01216
Popis: The inversion of number words influences numerical cognition even in seemingly non-verbal tasks, such as Arabic number comparison. However, it is an open question whether inversion of decades and units also influences number processing beyond the two-digit number range. The current study addresses this question by investigating compatibility effects in both German- (a language with inverted) and English-speaking (a language with non-inverted number words) university students (mean age 22 years) in a three-digit number comparison task.We observed reliable hundred-decade as well as hundred-unit compatibility effects for three-digit number comparison. This indicates that, comparable two-digit numbers, three-digit numbers are processed in a parallel decomposed fashion. However, in contrast to previous results on two-digit numbers as well as on children’s processing of three-digit numbers, no reliable modulation of these compatibility effects through language was observed in adults. The present data indicate that inversion-related differences in multi-digit number processing are limited. They seem to be restricted to the number range involving those digits being inverted (i.e., tens and units in two-digit numbers) but do not generalize to neighboring digits. Possible reasons for this lack of generalization are discussed.
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