Verbal forward digit span in Spanish population

  1. Sebastián, María Victoria
  2. Mediavilla, Roberto
Journal:
Psicothema

ISSN: 0214-9915

Year of publication: 2015

Volume: 27

Issue: 2

Pages: 93-98

Type: Article

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Abstract

Background: Older people complain of difficulties in recalling telephone numbers and being able to dial them in the correct order. This study examined the developmental trend of verbal forward digit span across adulthood and aging in a Spanish population, as an index of one of the components of Baddeley's working memory model-the phonological loop-, which illustrates these two aspects. Method: A verbal digit span was administered to an incidental sample of 987 participants ranging from 35 to 90 years old. The maximum length was defined that participants could recall of at least two out of three series in the same order as presented with no errors. Demographic variables of gender and educational level were also examined. Results: The ANOVA showed that the three main factors (age group, gender and educational level) were significant, but none of the interactions was. Verbal forward digit span decreases during the lifespan, but gender and educational level affect it slightly. Conclusion: Phonological loop is affected by age. The verbal forward digit span in this study is generally lower than the one reported in other studies.

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