Dissociation between magnitude comparison and relation identification across different formats for rational numbers
| Autor: | Keith J. Holyoak, Miriam Bassok, Melissa DeWolf, Maureen E. Gray |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Symbolic number
Rational number Dissociation (neuropsychology) 05 social sciences 050301 education Experimental and Cognitive Psychology Mathematical reasoning 050105 experimental psychology Decimal Philosophy 0501 psychology and cognitive sciences Psychology (miscellaneous) Arithmetic 0503 education Mathematics |
| Zdroj: | Thinking & Reasoning. 24:179-197 |
| ISSN: | 1464-0708 1354-6783 |
| DOI: | 10.1080/13546783.2017.1367327 |
| Popis: | The present study examined whether a dissociation among formats for rational numbers (fractions, decimals, and percentages) can be obtained in tasks that require comparing a number to a non-symbolic quantity (discrete or else continuous). In Experiment 1, college students saw a discrete or else continuous image followed by a rational number, and had to decide which was numerically larger. In Experiment 2, participants saw the same displays but had to make a judgment about the type of ratio represented by the number. The magnitude task was performed more quickly using decimals (for both quantity types), whereas the relation task was performed more accurately with fractions (but only when the image showed discrete entities). The pattern observed for percentages was very similar to that for decimals. A dissociation between magnitude comparison and relational processing with rational numbers can be obtained when a symbolic number must be compared to a non-symbolic display. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|