title: Executive functions and linguistic performance in SCD older adults and healthy controls.
abstract: Subjective cognitive decline (SCD) might represent the preclinical phase of Alzheimer's disease. Given the interest to characterize it, the present study explores (1) if there are differences in lexical retrieval (LexR) and sentence comprehension (SComp) between SCD and matched controls, and (2) the predictive value of demographic variables and executive functions in relation to LexR and SComp in each group. A sample of 135 participants voluntarily took part in this study (66 with SCD). They all completed the Trail Making, the Stroop, the Boston Naming, and the ECCO-Senior tests, as well as verbal fluency tasks (VF). Results show that (1) groups differ in LexR and in inhibition efficiency, and (2) VF is explained by years of formal education, particularly in the control group; SComp in the most complex items seems to rely in different strategies, related to flexibility in controls and to inhibition efficiency in SCD patients.
authors.affiliation: a Department of Cognitive Processes , Complutense University of Madrid , Madrid , Spain.
authors.forename: Ramón
authors.initials: R
authors.lastname: López-Higes
authors.affiliation: a Department of Cognitive Processes , Complutense University of Madrid , Madrid , Spain.
authors.forename: José M
authors.initials: JM
authors.lastname: Prados
authors.affiliation: b Department of Personality, Evaluation, and Psychological Treatment II , Complutense University of Madrid , Madrid , Spain.
authors.forename: Susana
authors.initials: S
authors.lastname: Rubio
authors.affiliation: c Centre for the Prevention of Cognitive Impairment , Public Health Institute , Madrid , Spain.
authors.forename: Pedro
authors.initials: P
authors.lastname: Montejo
authors.affiliation: a Department of Cognitive Processes , Complutense University of Madrid , Madrid , Spain.
authors.forename: David
authors.initials: D
authors.lastname: Del Río
mesh_terms: D000368:Aged; D000375:Aging; D060825:Cognitive Dysfunction / Q000150:complications* / Q000523:psychology*; D056344:Executive Function / Q000502:physiology*; D005260:Female; D006801:Humans; D007806:Language Disorders / Q000175:diagnosis / Q000209:etiology*; D008037:Linguistics; D016015:Logistic Models; D008297:Male; D008609:Mental Status Schedule; D009483:Neuropsychological Tests; D014705:Verbal Behavior
keywords: Subjective cognitive decline; cognitive flexibility; interference; naming; sentence comprehension