Principal Component Analysis of Working Memory Variables during Child and Adolescent Development.
Correlation and Principal Component Analysis (PCA) of behavioral measures from two experimental tasks (Delayed Match-to-Sample and Oddball), and standard scores from a neuropsychological test battery (Working Memory Test Battery for Children) was performed on data from participants between 6-18 years old. The correlation analysis (p 1), the scores of the first extracted component were significantly correlated (p < .05) to most behavioral measures, suggesting some commonalities of the processes of age-related changes in the measured variables. The results suggest that this first component would be related to age but also to individual differences during the cognitive maturation process across childhood and adolescence stages. The fourth component would represent the speed-accuracy trade-off phenomenon as it presents loading components with different signs for reaction times and errors.
Universidad de Sevilla(Spain).
Catarina I
CI
Barriga-Paulino
Universidad de Sevilla(Spain).
Elena I
EI
Rodríguez-Martínez
Universidad de Sevilla(Spain).
María Ángeles
MÁ
Rojas-Benjumea
Universidad de Sevilla(Spain).
Carlos M
CM
Gómez
D000293:Adolescent; D000294:Adolescent Behavior / Q000502:physiology*; D041923:Adolescent Development / Q000502:physiology*; D002648:Child; D002652:Child Behavior / Q000502:physiology*; D002657:Child Development / Q000502:physiology*; D005260:Female; D006801:Humans; D008297:Male; D008570:Memory, Short-Term / Q000502:physiology*; D025341:Principal Component Analysis
child development; principal component analysis; working memory