Project DyAdd: Visual attention in adult dyslexia and ADHD

Marja Laasonen, Jonna Salomaa, Denis Cousineau, Sami Leppämäki, Pekka Tani, Laura Hokkanen, Matthew Dye

Research output: Contribution to journalArticlepeer-review


In this study of the project DyAdd, three aspects of visual attention were investigated in adults (18-55 years) with dyslexia (n=35) or attention deficit/hyperactivity disorder (ADHD, n=22), and in healthy controls (n=35). Temporal characteristics of visual attention were assessed with Attentional Blink (AB), capacity of visual attention with Multiple Object Tracking (MOT), and spatial aspects of visual attention with Useful Field of View (UFOV) task. Results showed that adults with dyslexia had difficulties performing the AB and UFOV tasks, which were explained by an impaired ability to process dual targets, longer AB recovery time, and deficits in processing rapidly changing visual displays. The ADHD group did not have difficulties in any of the tasks. Further, performance in the visual attention tasks predicted variation in measures of phonological processing and reading when all of the participants were considered together. Thus, difficulties in tasks of visual attention were related to dyslexia and variation of visual attention had a role in the reading ability of the general population.

Original languageEnglish (US)
Pages (from-to)311-327
Number of pages17
JournalBrain and Cognition
Issue number3
StatePublished - Dec 2012


  • ADHD
  • Attentional blink
  • Dyslexia
  • Multiple object tracking
  • Spatial attention

ASJC Scopus subject areas

  • Neuropsychology and Physiological Psychology
  • Experimental and Cognitive Psychology
  • Developmental and Educational Psychology
  • Arts and Humanities (miscellaneous)
  • Cognitive Neuroscience


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