Institutional Research Information Service
UCL Logo
Please report any queries concerning the funding data grouped in the sections named "Externally Awarded" or "Internally Disbursed" (shown on the profile page) to your Research Finance Administrator. Your can find your Research Finance Administrator at https://www.ucl.ac.uk/finance/research/rs-contacts.php by entering your department
Please report any queries concerning the student data shown on the profile page to:

Email: portico-services@ucl.ac.uk

Help Desk: http://www.ucl.ac.uk/ras/portico/helpdesk
Publication Detail
Saccadic chronostasis and the continuity of subjective temporal experience across eye movements
  • Publication Type:
  • Authors:
    Yarrow K, Haggard P, Rothwell JC
  • Publication date:
  • Pagination:
    150, 163
  • ISBN-13:
  • Status:
  • Book title:
    Space and Time in Perception and Action
Summary The term “saccadic chronostasis” refers to the subjective temporal lengthening of a visual stimulus perceived following a saccadic eye movement. In this chapter, we discuss our preferred account of the illusion, which posits that the onset of the postsaccadic stimulus is antedated to a moment just prior to movement initiation, and review supporting evidence that illustrates key characteristics of the illusion, including its dependency on saccade extent. We conclude with a brief discussion of other examples of biased time perception that have been linked to saccadic chronostasis. Introduction When people make a saccadic eye movement to fixate a new visual target, they overestimate the duration for which that target is perceived (Yarrow et al. 2001). This illusion, which we have called saccadic chronostasis, has been demonstrated using the following basic procedure. Subjects make a saccade to a target that changes form or color during the saccade. They judge the duration of the new target stimulus relative to subsequently presented reference stimuli, and these judgments are used to determine a point of subjective equality (PSE; the point at which the target and reference stimuli are perceived to have identical durations). This procedure is schematized in Fig. 10.1. The same task performed while fixating forms a control. Reduced PSEs in saccadic conditions compared to control fixation conditions are a gauge of the temporal overestimation of the postsaccadic stimulus.
Publication data is maintained in RPS. Visit https://rps.ucl.ac.uk
 More search options
UCL Researchers
Institute of Cognitive Neuroscience
Clinical and Movement Neurosciences
University College London - Gower Street - London - WC1E 6BT Tel:+44 (0)20 7679 2000

© UCL 1999–2011

Search by