The Operational Momentum (OM) is the systematic tendency to overestimate the answers to addition problems and underestimate the answers to subtraction problems. This effect has been found both in adults and infants using non-symbolic numerical quantities, and it is thought to arise from interactions between the spatial and numerical systems, as a side effect of attentional updating along the mental number line - attention is shifted to the right (larger numbers) for addition and to the left (smaller numbers) for subtraction. This experiment was aimed at investigating whether the OM effect is present even for the representation of increasing ordinal relations among continuous quantities in 12-month-olds. After been habituated to increasing size-based sequences, infants showed a preference for an increasing against-momentum sequence vs. an increasing with-momentum sequence. Results are in line with the hypothesis that continuous and discrete quantities share a common representational system

Gariboldi, V., Bulf, H., de Hevia, M., MACCHI CASSIA, V. (2014). Ordinare le grandezze sposta l'attenzione nello spazio rappresentazionale nella prima infanzia: evidenze dall'Operational Momentum. GIORNALE ITALIANO DI PSICOLOGIA, 41(3), 611-622 [10.1421/78506].

Ordinare le grandezze sposta l'attenzione nello spazio rappresentazionale nella prima infanzia: evidenze dall'Operational Momentum

BULF, HERMANN SERGIO
Secondo
;
MACCHI CASSIA, VIOLA MARINA
Ultimo
2014

Abstract

The Operational Momentum (OM) is the systematic tendency to overestimate the answers to addition problems and underestimate the answers to subtraction problems. This effect has been found both in adults and infants using non-symbolic numerical quantities, and it is thought to arise from interactions between the spatial and numerical systems, as a side effect of attentional updating along the mental number line - attention is shifted to the right (larger numbers) for addition and to the left (smaller numbers) for subtraction. This experiment was aimed at investigating whether the OM effect is present even for the representation of increasing ordinal relations among continuous quantities in 12-month-olds. After been habituated to increasing size-based sequences, infants showed a preference for an increasing against-momentum sequence vs. an increasing with-momentum sequence. Results are in line with the hypothesis that continuous and discrete quantities share a common representational system
Articolo in rivista - Articolo scientifico
Infancy; Magnitude; Ordinality; Representation; Space
Italian
611
622
12
Gariboldi, V., Bulf, H., de Hevia, M., MACCHI CASSIA, V. (2014). Ordinare le grandezze sposta l'attenzione nello spazio rappresentazionale nella prima infanzia: evidenze dall'Operational Momentum. GIORNALE ITALIANO DI PSICOLOGIA, 41(3), 611-622 [10.1421/78506].
Gariboldi, V; Bulf, H; de Hevia, M; MACCHI CASSIA, V
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/106488
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