Autores: Tracy D. Vannorsdall; David A. Maroof; Barry Gordon; David J. Schretlen.
Resumen
Objective: Many disorders are characterized by impoverished ideational fluency. Test of letter word, category word, and desing likely invoke different cognitive processes, but they migth depend on overlapping cortical circutis. Despite diferences in the tasks used to assess it, we bypothsized that ideational fluency represents a dissociable dimension of human cognition. Methods: Altogether 317 heatly adults and 280 adults with medical or psychiatric illenesse completed a cognitive test battery that included three measures of ideational fluency. Principal component analyses the factor loadings regressions determined the relative contributions of the other fluency measures to the fluency variable of interesent after accounting for demographic factors and other cognitive abilities Results: In both participant groups all three mesaures of word and desing fluency loaded on a single factor. An ideational fluency composite score was also normally distributed among heatly adults. After accounting for demographic characteristics, intelligence, procesing speed, memory and executive functioning, adding terms for letter and category cued word fluency improved multiple regression models predinctioning desing fluency and vice versa.
