Electroencephalogram and Heart Rate Measures of Working Memory at 5 and 10 Months of Age
- UNCG Author/Contributor (non-UNCG co-authors, if there are any, appear on document)
- Susan D. Calkins, Professor (Creator)
- Stuart Marcovitch, Associate Professor and Head of the Department of Psychology (Creator)
- Institution
- The University of North Carolina at Greensboro (UNCG )
- Web Site: http://library.uncg.edu/
Abstract: We recorded electroencephalogram (EEG; 6–9 Hz) and heart rate (HR) from infants at 5 and 10 months of age during baseline and performance on the looking A-not-B task of infant working memory (WM). Longitudinal baseline-to-task comparisons revealed WM-related increases in EEG power (all electrodes) and EEG coherence (medial frontal–occipital electrode pairs) at both ages. WM-related decreases in HR were only present at 5 months, and WM-related increases in EEG coherence became more localized by 10 months. Regression analyses revealed that baseline-to-task changes in psychophysiology accounted for variability in WM performance at 10 but not 5 months. HR and EEG power (medial frontal and lateral frontal electrodes) were unique predictors of variability in 10-month WM performance. These findings are discussed in relation to frontal lobe development and represent the first comprehensive longitudinal analysis of age-related changes in the behavioral and psychophysiological correlates of WM.
Electroencephalogram and Heart Rate Measures of Working Memory at 5 and 10 Months of Age
PDF (Portable Document Format)
192 KB
Created on 6/18/2014
Views: 2183
Additional Information
- Publication
- Developmental Psychology, 48(4), 907-917
- Language: English
- Date: 2012
- Keywords
- EEG coherence, EEG power, Heart rate, Infants, Working memory, Electroencephalogram, Electroencephalography, Infant Development, Short Term Memory