Do we bump into things more while speaking on a cell phone?

Research output: Contribution to conferencePaperpeer-review

3 Scopus citations


We observed more than 8,800 cases of people passing by an obstacle that was placed at different heights at the entrance to a university cafeteria. Of those cases, 491 were of pedestrians speaking on a cell phone. Overall, 2,422 bumping cases were recorded. Using a cell phone while walking did not increase the risk of bumping into protruding obstacles. The results suggest that the effective visual field of people who are involved in a highly automated, relatively slow- paced task, such as walking, under low rates of information input, is not degraded by speaking on a cell phone.

Original languageEnglish
Number of pages10
StatePublished - 8 Dec 2008
Event28th Annual CHI Conference on Human Factors in Computing Systems - Florence, Italy
Duration: 5 Apr 200810 Apr 2008


Conference28th Annual CHI Conference on Human Factors in Computing Systems


  • Automaticity
  • Bumping
  • Cell phones
  • Dual task
  • Safety
  • Speaking
  • Visual field
  • Walking

ASJC Scopus subject areas

  • Software
  • Human-Computer Interaction
  • Computer Graphics and Computer-Aided Design

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