Number-Stroop performance in normal aging and Alzheimer's-type dementia

Luisa Girelli, Marco Sandrini, Stefano Cappa, Brian Butterworth

Research output: Contribution to journalArticle


The number-Stroop paradigm was used to investigate changes in the inhibitory system and in numerical processing in healthy elderly and individuals with dementia of Alzheimer's type (DAT). The size-congruity effect (i.e., relative to neutral trials, incongruent pairs interfere and/or congruent pairs facilitate either numerical or physical comparison) was found in all groups, though the pattern of interference and facilitation varied across them. Overall, the selective attention breakdown was reflected by the increase in interference shown by the older group and the DAT group. On the other hand, the observation of a standard laterality effect and of automatic numerical processing in all groups suggests that access and retrieval of numerical information is relatively resistant to cognitive deterioration.

Original languageEnglish
Pages (from-to)144-149
Number of pages6
JournalBrain and Cognition
Issue number1-2
Publication statusPublished - Jun 2001


ASJC Scopus subject areas

  • Cognitive Neuroscience
  • Experimental and Cognitive Psychology
  • Neuropsychology and Physiological Psychology

Cite this

Girelli, L., Sandrini, M., Cappa, S., & Butterworth, B. (2001). Number-Stroop performance in normal aging and Alzheimer's-type dementia. Brain and Cognition, 46(1-2), 144-149.