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ERIC Number: EJ1079160
Record Type: Journal
Publication Date: 2015-Dec
Pages: 10
Abstractor: As Provided
ISSN: ISSN-1751-2271
How Do We Choose among Strategies to Accomplish Cognitive Tasks? Evidence from Behavioral and Event-Related Potential Data in Arithmetic Problem Solving
Taillan, Julien; Dufau, Stéphane; Lemaire, Patrick
Mind, Brain, and Education, v9 n4 p222-231 Dec 2015
We used event-related potentials (ERPs) to determine the time course of mechanisms underlying strategy selection. Participants had to select the better strategy on multiplication problems (i.e., 51 × 27) to find approximate products. They could choose between rounding up and rounding down both operands to their nearest decades. Two types of problems were tested, homogeneous problems (e.g., 34 × 61) and heterogeneous problems (e.g., 61 × 36). Homogeneous problems are easier to solve because both operands are close to the lowest or the upper decades. Behavioral data revealed that participants selected the better strategy more often on homogeneous problems. ERPs showed that homogeneous problems elicited more positive cerebral activities than heterogeneous problems in the 0-200 and 800-1,000 ms windows, and more negative cerebral activities than heterogeneous problems in the 400-600 ms window. These findings have important theoretical implications for our understanding of the mechanisms underlying strategy selection.
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Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Grant or Contract Numbers: N/A