Ocular dominance reverses as a function of horizontal gaze angle

Khan, Aarlenne Z.; Crawford, J. Douglas

doi:10.1016/s0042-6989(01)00079-7

Cited by 102 publications

(90 citation statements)

References 22 publications

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“…Second, while hand preference is relatively straightforward in terms of its contralateral organisation within the brain, eye preference, as a consequence of binocular vision and its association with foot and hand preference, is likely to be more complex. Recent studies suggest that eye and foot preference, like hand preference, may be situational and specific to the task at hand (Hart and Gabbard, 1997;Khan and Crawford, 2001). If so, a multi-item assess-ment is needed to accurately measure bias.…”

Section: Discussionmentioning

confidence: 99%

Is lateral bias anomalous in early-onset schizophrenia? Selected comparisons with normal populations

Collinson

Phillips²,

James

et al. 2004

Psychiatry Research

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The aim of this study was to investigate lateral bias in patients with early-onset schizophrenia. Hand, eye, and foot preferences and relative hand skill were examined in early-onset patients (ns44) and matched controls (ns39), and were compared with population estimates. Patients demonstrated a significant excess in mixed handedness (20.5% vs. 8.5%) relative to population estimates and reduced relative hand skill on a pegboard task compared with controls. Left eye preference was significantly less common in schizophrenic patients relative to population estimates. Crossed eye-hand and eye-foot preferences were not significantly increased in the patient group as a whole but were present, respectively, in four of nine and five of nine mixed-handed patients but in none of five mixed-handed controls. These findings are consistent with the view that lateralisation is anomalous in schizophrenia early in the course of illness.

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Section: Discussionmentioning

confidence: 99%

Is lateral bias anomalous in early-onset schizophrenia? Selected comparisons with normal populations

Collinson

Phillips²,

James

et al. 2004

Psychiatry Research

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“…Miles or Porta tests) deliver binary "left" or "right" measures of eye-dominance. Further, sightingdominance can be inconsistent, influenced by gaze direction (Khan and Crawford 2001), and by the test used (Rice, Leske et al 2008). The only continuous estimate of eye-dominance available to clinicians comes from Sbisa bars which rely on the clinician's judgement of what stimulus level induces a patient to report diplopia.…”

Section: How Could New Tests Fit Into Clinical Practice?mentioning

confidence: 99%

A comparison of tests for quantifying sensory eye dominance

Bossi

Hamm

Dahlmann‐Noor

et al. 2017

Preprint

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Purpose Clinicians rely heavily on stereoacuity to measure binocular visual function, but stereovision represents only one aspect of binocularity. Lab-based tests of sensory eye dominance (SED) are commonplace, but have not been translated to wider clinical practice. Here we compare several 15 methods of quantifying SED in a format suitable for clinical use. Methods We tested 30 participants with ostensibly normal vision on 8 tests. Seven tests (#1-7) were designed to quantify SED in the form of an interocular balance-point (BP). In tests #1-6, we estimated a contrast-BP, the interocular difference in contrast required for observers to be equally likely to base their judgement on either eye, whereas in test #7 we measured binocular rivalry (interocular ratio of sensory dominance 20 duration). We compare test-retest reliability (intra-observer consistency) and test-validity (interobserver discriminatory power) and compare BP to stereoacuity (test #8). Results The test that best preserved inter-observer differences in contrast balance while maintaining good test-retest reliability was a polarity judgement using superimposed opposite-contrast polarity same-identity optotypes. Conclusions A reliable and valid measure of SED can be obtained rapidly (20 trials) using 25 a simple contrast-polarity judgement. Tests that use polarity-rivalrous stimuli elicit more reliable judgments than those that do not. Significance StatementAlthough sensory eye dominance is central to understanding normal and disordered binocular vision, there is currently no consensus as to the best way to measure it. Here we compare several 30 candidate measures of sensory eye dominance and conclude that a reliable measure of SED can be achieved rapidly using a judgement of stimulus contrast-polarity.

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“…Dominance does appear to change depending upon direction of gaze due to image size changes on the retinas [4]. Furthermore, the eye preferred for sighting does not indicate handedness.…”

Section: Introductionmentioning

confidence: 92%

“…Ocular dominance was first described in 1953 by Giovanni Battista Porta. Ocular dominance, otherwise called eye dominance or eyedness was the tendency to prefer visual input from one eye to the other [7,13]. The eye is a sensory organ and has no conscious proprioception and vision in each eye is represented bilaterally and equally in the occipital lobes.…”

Section: Introductionmentioning

confidence: 99%

Effect of Ocular Dominance on the Latency and Amplitude of Visual Evoked Potentials

kutty¹

2012

IOSR-JDMS

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Ocular dominance reverses as a function of horizontal gaze angle

Cited by 102 publications

References 22 publications

Is lateral bias anomalous in early-onset schizophrenia? Selected comparisons with normal populations

Is lateral bias anomalous in early-onset schizophrenia? Selected comparisons with normal populations

A comparison of tests for quantifying sensory eye dominance

Effect of Ocular Dominance on the Latency and Amplitude of Visual Evoked Potentials

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