ISSN:
1432-0770
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
,
Computer Science
,
Physics
Notes:
Abstract It is proposed that there is a low-level automatic component of visual scanning in which saccades are triggered probabilistically in time by nonfoveal stimulus features. By ignoring cognitive factors and memory, a first-order Markov approach is taken, which is tractable for spatially homogeneous stimuli. The predicted distributions of saccade magnitude, fixation duration, fixation position, and how they are related to stimulus size are in good agreement with empirical observations by Bahill et al. (1975), Enoch (1959), and Harris et al. (1988). Ways in which this low-level process could be modulated by cognitive factors are discussed.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00204695
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