Experimental Brain Research

, Volume 57, Issue 1, pp 191–195 | Cite as

Human express saccades: extremely short reaction times of goal directed eye movements

  • B. Fischer
  • E. Ramsperger
Research Note

Summary

Human subjects were asked to execute a saccade from a central fixation point to a peripheral target at the time of its onset. When the fixation point is turned off some time (≈ 200 ms) before target onset, such that there is a gap where subjects see nothing, the distribution of their saccadic reaction times is bimodal with one narrow peak around 100 ms (express saccades) and another peak around 150 ms (regular saccades) measured from the onset of the target. Express saccades have been described earlier for the monkey.

Key words

Eye movements Reaction time Fixation Attention Express saccade 

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References

  1. Boch R, Fischer B, Ramsperger E (1984) Express-saccades of the monkey: reaction times versus intensity, size, duration, and eccentricity of their targets. Exp Brain Res 55: 223–231Google Scholar
  2. Fischer B, Boch R (1983) Saccadic eye movements after extremely short reaction times in the monkey. Brain Res 260: 21–26Google Scholar
  3. Fischer B, Boch R (1984) Peripheral attention versus central fixation: modulation of the visual activity of prelunate cortical cells of the rhesus monkey. Brain Res (in press)Google Scholar
  4. Fischer B, Boch R, Ramsperger E (1984) Express-saccades of the monkey: effects of daily training on probability of occurrence and reaction time. Exp Brain Res 55: 232–242Google Scholar
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Copyright information

© Springer-Verlag 1984

Authors and Affiliations

  • B. Fischer
    • 1
  • E. Ramsperger
    • 1
  1. 1.Abteilung für Klinische Neurologie und Neurophysiologie, Universität FreiburgFreiburgFederal Republic of Germany

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