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Cerebral Cortex Advance Access published online on January 17, 2008
Cerebral Cortex, doi:10.1093/cercor/bhm246
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© The Author 2008. Published by Oxford University Press. All rights reserved. For permissions, please e-mail: journals.permissions@oxfordjournals.org

Neurodevelopmental Correlates of True and False Recognition

Pedro M. Paz-Alonso1,2,3,4, Simona Ghetti1,2, Sarah E. Donohue5, Gail S. Goodman2 and Silvia A. Bunge3,4

1 Center for Mind and Brain, 2 Department of Psychology, University of California, 1 Shields Avenue, Davis, CA 95616-8686, USA, 3 Department of Psychology, 4 Helen Wills Neuroscience Institute, University of California, Berkeley, CA 94720, USA, 5 Center for Cognitive Neuroscience, Duke University, Durham, NC 27708, USA

Address correspondence to email: ppazalonso{at}ucdavis.edu; sghetti{at}ucdavis.edu.

The Deese/Roediger–McDermott (DRM) false-memory effect has been extensively documented in psychological research. People falsely recognize critical lures or nonstudied items that are semantically associated with studied items. Behavioral research has provided evidence for age-related increases in the DRM false-recognition effect. The present event-related functional magnetic resonance imaging study was aimed at investigating neurodevelopmental changes in brain regions associated with true- and false-memory recognition in 8-year olds, 12-year olds, and adults. Relative to 8-year olds, adults correctly endorsed more studied items as "old" but also mistakenly endorsed more critical lures. Age-related increases in recollection were associated with changes in the medial temporal lobe (MTL) activation profile. Additionally, age-related increases in false alarms (FAs) to semantically related lures were associated with changes in the activation profile of left ventrolateral prefrontal cortex, a region associated with semantic processing. Additional regions exhibiting age-related changes include posterior parietal and anterior prefrontal cortices. In summary, concomitant changes in the MTL, prefrontal cortex, and parietal cortex underlie developmental increases in true and false recognition during childhood and adolescence.

Key Words: children • cognitive development • fMRI • frontoparietal • hippocampus • long-term memory


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