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Related Experiment Videos

Computer usage with cold hands; an experiment with pointing devices.

A C Blomkvist1, G Gard

  • 1Department of Behavioural Sciences, Kristianstad University, Kristianstad, Sweden. acbmodem@algonet.se

International Journal of Occupational Safety and Ergonomics : JOSE
|January 3, 2001
PubMed
Summary

Computer use in cold environments is challenging due to limited hand dexterity. This study found that larger targets, thicker pens, and mice improve usability in cold conditions, making computer tasks more feasible outdoors and in cold storage.

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Area of Science:

  • Human-Computer Interaction
  • Ergonomics
  • Environmental Psychology

Background:

  • Cold environments significantly impair fine motor skills essential for computer data input.
  • Outdoor and cold storage work often necessitates computer use, creating an ergonomic challenge.

Purpose of the Study:

  • To investigate the impact of cold hands on the performance of various computer input devices.
  • To identify device and task parameters that mitigate performance decrements in cold conditions.

Main Methods:

  • Nineteen participants performed a Fitts' target acquisition task using trackballs, pens, and a mouse.
  • Testing occurred under warm and cold hand conditions with two target sizes.
  • Performance metrics included acquisition time, error rates, and user preferences.

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Main Results:

  • Device type, target size, and cold hand temperature significantly affected performance.
  • Users exhibited learning effects and adapted grip strategies in the cold.
  • Larger targets, thicker pens, and mice were found to be more practicable in cold conditions.

Conclusions:

  • Computer operation in cold environments can be optimized through careful selection of input devices and target design.
  • Direct visual feedback can further enhance performance by reducing acquisition times.