Effects of visual search training in children with hemianopia

PloS One
Iliya V IvanovSusanne Trauzettel-Klosinski

Abstract

This study investigates the effect of a new computer-based visual search training (VST) that was adapted for children with homonymous hemianopia (HH). 22 children with HH (median age 11 years, 8 months: 6y6m-19y2m) trained at home for 15 minutes twice/day, 5 days/week, for 6 weeks. To assess performance before training (T1), directly after training (T2) and 6 weeks after the end of training (T3), we measured search times (STs) during on-screen search (with eye tracking), and in a real life search task. Additional variables analyzed during on-screen search were numbers, amplitudes, and durations of saccades, their directional patterns and the proportional number of saccades into the non-seeing field. The latter was the main variable during free viewing. Sixteen healthy age-matched children, who did not undergo the training, served as comparison group. Quality of Life (QoL)-questionnaires were also applied. STs of the patients decreased significantly during the training and all search performance tests. This improvement persisted 6 weeks after the end of the training. Saccade amplitudes increased, total number of saccades to find the target decreased, and the proportional number of saccades to the non-seeing side increased. These...Continue Reading

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Citations

Aug 22, 2018·Der Ophthalmologe : Zeitschrift der Deutschen Ophthalmologischen Gesellschaft·S Trauzettel-Klosinski
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Sep 30, 2020·European Journal of Paediatric Neurology : EJPN : Official Journal of the European Paediatric Neurology Society·Lisa NeumayrMartin Staudt

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