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Interaction Between Oculomotor Impairments, Voluntary Attention and Working Memory Disorders in Children with Cerebellar Tumorsстатья
Дата последнего поиска статьи во внешних источниках: 8 сентября 2021 г.
- Авторы: Shurupova Marina, Deviaterikova Alena, Latanov Alexander, Kasatkin Vladimir
- Журнал: Advances in Intelligent Systems and Computing
- Том: 1358
- Номер: Advances in Cognitive Research, Artificial Intelligence and Neuroinformatics
- Год издания: 2021
- Первая страница: 547
- Последняя страница: 553
- DOI: 10.1007/978-3-030-71637-0_63
- Аннотация: Visual cognition relies on a distinct type of eye movements called saccades. The cerebellum is important for all types of eye movements and gaze fixation stability and is involved in cognitive functions. In our previous research, we reported oculomotor deficits in cerebellar patients: unstable gaze fixation, incorrect hypermetric (‘overshooting’) saccades, increased trajectory of scanpath while examining the picture. The purpose of current research was to investigate the relations between eye movement parameters and visual attention and working memory in children who had undergone cerebellar tumor treatment. 55 children (age 9–17, mean = 12.0 ± 3.2) participated in the experiment. The subjects performed oculomotor (3 tasks, using Arrington eye tracker) and cognitive (4 tests, CANTAB) assessment. We found that gaze fixation stability correlated positively with the speed of RVP completion (p < 0.001) and negatively with the number of solved tasks in SOC (p = 0.018). Proportions of accurate visually guided saccades positively correlated with number of remembered elements in SWM (p = 0.019). Proportion of hypermetric saccades positively correlated with the number of errors in RVP (p = 0.009). In visual search task, trajectory length (scanpath) positively correlated with proportion of errors in SWM (p = 0.003), longer response times in RVP (p < 0.001) and smaller number of remembered elements in SSP (p = 0.023). Thus, oculomotor deficits resulting from cerebellar dysfunction are proved to be accompanied by cognitive deficits such as sustained attention disturbance and visuospatial working memory capacity decrease. These findings contribute to our understanding of visuomotor cognitive behavior mechanisms and may result in introduction of additional rehabilitation procedures for patients with cerebellar dysfunction.
- Добавил в систему: Шурупова Марина Алексеевна