A growing body of research has shown that symbolic number processing relates to individual differences in mathematics. However, it remains unclear which mechanisms of symbolic number processing are crucial—accessing underlying magnitude representation of symbols (i.e., symbol‐magnitude associations), processing relative order of symbols (i.e., symbol‐symbol associations), or processing of symbols per se. To address this question, in this study adult participants performed a dots‐number word matching task—thought to be a measure of symbol‐magnitude associations (numerical magnitude processing)—a numeral‐ordering task that focuses on (...) symbol‐symbol associations (numerical order processing), and a digit‐number word matching task targeting symbolic processing per se. Results showed that both numerical magnitude and order processing were uniquely related to arithmetic achievement, beyond the effects of domain‐general factors (intellectual ability, working memory, inhibitory control, and non‐numerical ordering). Importantly, results were different when a general measure of mathematics achievement was considered. Those mechanisms of symbolic number processing did not contribute to math achievement. Furthermore, a path analysis revealed that numerical magnitude and order processing might draw on a common mechanism. Each process explained a portion of the relation of the other with arithmetic (but not with a general measure of math achievement). These findings are consistent with the notion that adults’ arithmetic skills build upon symbol‐magnitude associations, and they highlight the effects that different math measures have in the study of numerical cognition. (shrink)

The paper offers an interpretation of the role the concept of nationality plays in John Stuart Mill’s thought. To that purpose, I consider not only his best-known writings, but also those less frequently studied in the academic literature on that issue. The argument benefits from Quentin Skinner’s methodological insights into the study of the history of political thought. In that sense, I focus on Mill’s System of Logic textual revisions. In doing so, I briefly examine Mill’s intellectual and personal relationship (...) with Auguste Comte and hence the influence of positivism on Mill’s social and political thinking. (shrink)

La dimensión política de la inmigración y la condición ciudadana: Una propuesta liberal. Recensión de José María Rosales, La integración cívica de los inmigrantes. Un ensayo sobre inmigración, ciudadanía y derechos. Barcelona: Horsori Editorial, 2014, 118 pp.