Siéroff Eric, Slama Yael, Manouvrier Jordane, Laurent Agathe
LMC2-Laboratoire Mémoire, Cerveau & Cognition UR 7536, Institute of Psychology, Paris-Cité University, 71 Avenue Edouard Vaillant, 92100 Boulogne-Billancourt, France.
Maison de Santé Pluridisciplinaire, 95350 Saint-Brice-sous-Forêt, France.
Brain Sci. 2024 Mar 5;14(3):252. doi: 10.3390/brainsci14030252.
Word reading requires a range of spatial attention processes, such as orienting to a specific word and selecting it while ignoring other words. This study investigated whether deficits of these spatial attention processes can show dissociations after hemispheric lesions. Thirty-nine patients with left or right focal epilepsy and 66 healthy participants had to read aloud four-letter words presented in the left and right visual hemifields. There were three successive blocks of presentation: in the unilateral block, a single word was presented in one of the visual hemifields; in the bilateral block, two words were presented simultaneously, one in each visual hemifield; in the cued block, two words were also presented, but only the cued word had to be reported. Twenty-one patients, twelve with a left and nine with a right hemisphere lesion, showed a word reading deficit. Four had specific difficulties in the cued block, suggesting an attentional selection reading deficit. Twelve patients had an asymmetric reading deficit, suggesting an attention orientation or a visual field deficit. Five patients had more complex deficits. The visual field presentation procedure may help to reveal different types of reading disorders in patients with epilepsy and to dissociate orienting and selecting deficits.
单词阅读需要一系列空间注意过程，比如定位到某个特定单词并对其进行选择，同时忽略其他单词。本研究调查了这些空间注意过程的缺陷在半球损伤后是否会表现出分离现象。39名患有左侧或右侧局灶性癫痫的患者以及66名健康参与者必须大声朗读出呈现于左、右视觉半视野中的四个字母的单词。存在三个连续的呈现阶段：在单侧阶段，一个单词呈现于其中一个视觉半视野；在双侧阶段，两个单词同时呈现，每个视觉半视野各一个；在提示阶段，同样呈现两个单词，但只需报告被提示的单词。21名患者存在单词阅读缺陷，其中12名左侧半球损伤，9名右侧半球损伤。4名患者在提示阶段存在特定困难，提示存在注意选择阅读缺陷。12名患者存在不对称阅读缺陷，提示存在注意定向或视野缺陷。5名患者存在更复杂的缺陷。视野呈现程序可能有助于揭示癫痫患者不同类型的阅读障碍，并区分定向和选择缺陷。
