title: [Verbal fluency in school-aged Spanish children: normative data and analysis of clustering and switching strategies].
abstract: BACKGROUND
  Verbal fluency tasks are highly sensitive to the presence of brain pathology. The use of verbal fluency tasks in paediatric clinical neuropsychology requires knowing how the execution progresses across age. Developmental changes in children's verbal fluency were explored in this study.
  
  
  METHODS
  Participants were 79 school-aged children divided into three age groups. Phonemic (FAM) and semantic (animals) fluency task were administered. Three scores were obtained for qualitative analyses: number of clusters, switches and mean cluster size.
  
  
  RESULTS
  Children in older groups generated more words in phonemic fluency than children in 6-7 years group. In semantic fluency differences were significant only between the 10-11 years group and the youngest group. In both tasks year-group effects were found in number of clusters and number of switches. High positive correlations were found between total production and number of cluster and number of switches.
  
  
  CONCLUSIONS
  Results suggest that the development of the capability to generate words is related to the maturation of frontal component of the task. That means, that it is related to development of a greater cognitive flexibility that allows more efficient strategic search processes. Data obtained, although preliminary, may be useful to evaluate the executive functions in Spanish speaking paediatric population.
authors.affiliation: Facultad de Psicología, Uniidad de Neuropsicología Clínica, Universidadde la Laguna, San Cristóbal de la Laguna, Tenerife, España.
authors.forename: A
authors.initials: A
authors.lastname: Nieto
authors.forename: I
authors.initials: I
authors.lastname: Galtier
authors.forename: J
authors.initials: J
authors.lastname: Barroso
authors.forename: G
authors.initials: G
authors.lastname: Espinosa
mesh_terms: D002648:Child; D005260:Female; D006801:Humans; D007802:Language; D008297:Male; D010700:Phonetics; D010865:Pilot Projects; D012016:Reference Values; D012660:Semantics; D013030:Spain; D014705:Verbal Behavior