The ethology of saccades: a non-cognitive model.

CM Harris

doi:10.1007/BF00204695

The ethology of saccades: a non-cognitive model.

CM Harris

School of Psychology

Research output: Contribution to journal › Article › peer-review

Abstract

It is proposed that there is a low-level automatic component of visual scanning in which saccades are triggered probabilistically in time by non-foveal 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.

Original language	English
Pages (from-to)	401-410
Number of pages	0
Journal	Biol Cybern
Volume	60
Issue number	6
DOIs	https://doi.org/10.1007/BF00204695
Publication status	Published - 1989

Keywords

Eye Movements
Humans
Models
Biological
Saccades
Visual Pathways

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10.1007/BF00204695

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title = "The ethology of saccades: a non-cognitive model.",

abstract = "It is proposed that there is a low-level automatic component of visual scanning in which saccades are triggered probabilistically in time by non-foveal 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.",

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AB - It is proposed that there is a low-level automatic component of visual scanning in which saccades are triggered probabilistically in time by non-foveal 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.

KW - Eye Movements

KW - Humans

KW - Models

KW - Biological

KW - Saccades

KW - Visual Pathways

U2 - 10.1007/BF00204695

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JO - Biol Cybern

JF - Biol Cybern

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ER -

The ethology of saccades: a non-cognitive model.

Abstract

Keywords

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