Oscillatory motion but not pattern reversal elicits monocular motion VEP biases in infantile esotropia
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چکیده
منابع مشابه
Oscillatory motion but not pattern reversal elicits monocular motion VEP biases in infantile esotropia
Patients with early disruptions of binocularity show cortical directional asymmetries in their steady state monocular VEP response to oscillatory motion. The VEP directional asymmetry is characterized by significant first harmonic components that show a 180 degrees difference in the response phase between the two eyes. By contrast, the normal response is dominated by even-order response harmoni...
متن کاملDirection-of-motion detection and motion VEP asymmetries in normal children and children with infantile esotropia.
PURPOSE To investigate nasal-temporal asymmetries in the detection of horizontal motion and in cortical motion visual evoked potential (mVEP) responses in normal infants and children and in patients with infantile esotropia. METHODS Monocular motion-detection thresholds were obtained separately for nasalward- and temporalward-moving random-dot patterns in a forced-choice, preferential-looking...
متن کاملAnomalies of motion perception in infantile esotropia.
PURPOSE To quantify motion sensitivity in patients with infantile esotropia who, as a subgroup, have been previously reported to have abnormal oculomotor control. In addition, to probe abnormal binocular development as a factor underlying abnormal motion perception in infantile esotropia (IE), motion sensitivity was compared among participants with and without stereopsis. METHODS Monocular se...
متن کاملMonocular acuity and stereopsis in infantile esotropia.
Monocular acuity and stereopsis were assessed by preferential-looking procedures in untreated infantile esotropes. Results were compared to an age-matched normal population. Monocular PL acuity was not significantly different from normal during months 3-14 for infantile esotropes who freely alternated fixation and for the preferred eyes of unilateral infantile esotropes. PL acuity of the non-pr...
متن کاملUndersampling produces non-veridical motion perception, but not necessarily motion reversal, in peripheral vision
We investigated motion perception in peripheral vision (10-40 deg eccentricity) for drifting gratings above and below the Nyquist limit set by neural sampling of the retinal image. We found that psychometric functions for motion discrimination rarely exhibited worse-than-chance performance indicative of motion reversal. A series of control experiments indicated that failure to demonstrate motio...
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ژورنال
عنوان ژورنال: Vision Research
سال: 1999
ISSN: 0042-6989
DOI: 10.1016/s0042-6989(98)00181-3