Varako Nataliya, Kovyazina Maria, Yurina Daria, Propustina Victoria, Stepanov Georgiy, Vasilyeva Svetlana, Daminov Vadim, Skvortsov Anatoliy, Baulina Maria, Zinchenko Yuri
Faculty of Psychology, Lomonosov Moscow State University, Moscow 125009, Russia.
Research Center of Neurology, Moscow 125367, Russia.
Healthcare (Basel). 2024 Nov 28;12(23):2387. doi: 10.3390/healthcare12232387.
Neglect syndrome is a serious condition that often affects the ability to perform visual-spatial search tasks, interfering with the ability to detect stimuli on the left side of space. A number of factors can affect the success of visual search in patients with neglect syndrome, including visual field load. The purpose of this study is to investigate how the number of stimuli in the right visual hemifield influences the efficiency of visual search in the left (neglected) hemifield, hypothesizing that an increased object load on the right side may impair search performance on the left.
The sample comprised 30 patients with neglect syndrome as the target group and 20 patients with right hemisphere damage but no signs of hemispatial neglect as the control group. This study employed several neuropsychological tests, including neuropsychological examination according to the scheme of A.R. Luria. The SPSS 23.0 software was used for statistical analysis of the data.
The Red Shapes test revealed a significant decrease in the number of stimuli detected in both the right and left visual hemifields across successive series ( < 0.001) in patients within the target group. No significant differences were observed in the participants of the control group. This study's results may be explained by the phenomenon of SSM (subsequent search misses) and the theory of attentional resource depletion during visual search tasks. These results indicate the need for further research into the features of visual search under various conditions, including the load and structuredness of the visual field.
This study confirmed that the number of elements in the right visual hemifield influences the ability to detect elements in the left hemifield in patients with left-sided neglect, as demonstrated using the Red Shapes test.
忽视综合征是一种严重病症，常影响执行视觉空间搜索任务的能力，干扰检测空间左侧刺激的能力。多种因素会影响忽视综合征患者视觉搜索的成功率，包括视野负荷。本研究旨在探究右视野中刺激数量如何影响左（被忽视）视野的视觉搜索效率，假设右侧物体负荷增加可能损害左侧的搜索表现。
样本包括30名患有忽视综合征的患者作为目标组，以及20名有右侧半球损伤但无半侧空间忽视迹象的患者作为对照组。本研究采用了多种神经心理学测试，包括按照A.R.卢里亚方案进行的神经心理学检查。使用SPSS 23.0软件对数据进行统计分析。
红色形状测试显示，目标组患者在连续系列中，右视野和左视野检测到的刺激数量均显著减少（<0.001）。对照组参与者未观察到显著差异。本研究结果可能由后续搜索遗漏（SSM）现象和视觉搜索任务中的注意力资源耗竭理论来解释。这些结果表明需要进一步研究各种条件下视觉搜索的特征，包括视野的负荷和结构。
本研究证实，如使用红色形状测试所示，右视野中的元素数量会影响左侧忽视患者检测左视野中元素的能力。
