Nicholas J. Cepeda, Ph.D.

Nicholas J. Cepeda heads the Cognitive Flexibility Lab at York University. Our primary motivation is understanding how flexible cognition qualitatively and quantitatively changes across the lifespan, during both development and aging. We use a variety of investigational techniques, including behavioral, ERP, and eye tracking methodologies.

Researchers have proposed several factors – including processing speed, working memory (span), and inhibition – as primary components of cognitive flexibility. Empirical data support two primary factors – working memory strength (see graded working memory theory) and processing speed – and a possible third factor – response inhibition. Our goal is understanding the degree to which these and other factors contribute to cognitive flexibility.

We also examine methods for optimizing long-term retention of classroom material. Using optimal distributed practice intervals, teachers can double or triple the amount of information their students retain over a year-long period, and large benefits also are seen through optimal testing and feedback strategies. We recommend that teachers (a) use cumulative tests and (b) provide feedback on incorrect test items, at least one week after students take the test.

Web-Based Studies

• Faces Study — Online task switching study for all ages, children and adults
• LearnMelanoma.org — Learn to recognize skin cancer

Mailing address:
York University
Department of Psychology
4700 Keele Street
Toronto, ON M3J 1P3

phone: 416-736-2100 x33266
fax: 416-736-5814
email: ncepeda at yorku . ca
office: BSB 242
lab: ATK 527