Selective nonconjugate binocular adaptation of vertical saccades and pursuits

Schor, Clifton M.; Gleason, Jerry; Horner, Douglas G.

doi:10.1016/0042-6989(90)90162-e

Cited by 37 publications

(14 citation statements)

References 27 publications

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“…Nonconjugate, short-term adaptations of smooth-pursuit eye movements have been described before by Horner et al (1988) and, more extensively, by Schor et al (1990). An important feature of smooth-pursuit eye movements is that the movements are relatively slow, which allows continuous visual feedback.…”

Section: Discussionmentioning

confidence: 94%

“…The nature of our experiments, however, does not allow us to speculate on the possibility of structures, shared by both eye movement subsystems, that control interocular coordination, because the adaptive pressure in our subjects was not different for saccades and pursuit. Recent experiments by Schor et al (1990) have shown the possibility of selective nonconjugate adaptation of either saccades or pursuit, by the use of suitably different training conditions.…”

Section: Discussionmentioning

confidence: 99%

“…Schor, Gleason and Horner (1990) recently published an extensive experimental study on short-term adaptation, while Oohira, Zee and Guyton (1991) recently studied nonconjugate adaptation in one case of long-standing anisometropic correction. This recent, specific interest in nonconjugate adaptations of saccades to the wearing of anisometropic spectacles follows earlier studies on more general aspects of saccadic plasticity.…”

Section: Introductionmentioning

confidence: 99%

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Long-term nonconjugate adaptation of human saccades to anisometropic spectacles

Lemij

Collewijn

1991

Vision Research

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Section: Discussionmentioning

confidence: 94%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Long-term nonconjugate adaptation of human saccades to anisometropic spectacles

Lemij

Collewijn

1991

Vision Research

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“…It has been well established that the eyes are capable of non-conjugate adaptation (e.g. Erkelens et al 1989b;Lemij and Collewijn 1991;Schor et al 1990) and such adaptation explains why Hering's law is so reliable over the developmental span.…”

Section: Non-conjugate Binocular Adaptationmentioning

confidence: 99%

A framework for considering the role of afference and efference in the control and perception of ocular position

Mon-Williams

Tresilian

1998

Biological Cybernetics

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It has been well established that extra-retinal information is used in the perception of visual direction and distance. Furthermore, a number of studies have established that both efference copy and afferent discharge contribute to the extra-retinal signal. Despite this, no model currently exists to explain how the signals which arise through oculomotor control contribute to perception. This paper attempts to provide such a framework. The first part of the paper outlines the framework [the cyclopean equilibrium point (EP) model] and considers the binoculus or cyclopean eye from the perspective of a current account of motor control (the EP hypothesis). An existing model is used to describe how the nervous system could utilise available efference copy and afferent extra retinal signals when determining the direction and distance of cyclopean fixation. Although the cyclopean EP model is speculative, it allows for a parsimonious framework when considering the oculomotor contribution to perception. The model has the additional advantage of being consistent with current theories regarding the control and perception of limb movement. The second part of the paper shows that the model is biologically plausible, demonstrates the use of the proposed model in describing the central control of eye movements with regard to non-conjugate peripheral adaptation and reconciles seemingly disparate empirical findings.

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“…Apparently, this effect does not require foveal fusion since microstrabismic patients adapt as well [112]. When vertical saccades are disconjugately adapted, smooth pursuit movements remain conjugate and vice versa [113]. Thus, the two classes of eye movements have separate mechanisms for binocular adaptation.…”

Section: Binocular Saccade Adaptationmentioning

confidence: 97%

Disconjugate Eye Movements

Straumann

2007

Neuro-Ophthalmology

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To foveate targets in different depths, the movements of the two eyes must be disconjugate. Fine measurements of eye rotations about the three principal axes have demonstrated that disconjugate eye movements may appear not only in the horizontal, but also in the vertical and torsional directions. In the presence of visual targets, disconjugate eye movements are driven by the vergence system, but they may also appear during vestibular stimulation. Disconjugate eye movements are highly adaptable by visual disparities, but under normal condition the effects of adaptation only persist when one eye is covered. Finally, disorders of the brainstem and cerebellum may lead to abnormal disconjugate eye movements that are often specific for the topography of the lesion. This chapter reviews the literature on the phenomenology of disconjugate eye movements over the last 15 years.

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Selective nonconjugate binocular adaptation of vertical saccades and pursuits

Cited by 37 publications

References 27 publications

Long-term nonconjugate adaptation of human saccades to anisometropic spectacles

Long-term nonconjugate adaptation of human saccades to anisometropic spectacles

A framework for considering the role of afference and efference in the control and perception of ocular position

Disconjugate Eye Movements

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