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首页> 外文期刊>Journal of vision >Global and local attentional processing following optic neuritis
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Global and local attentional processing following optic neuritis

机译：视神经炎后的全球和地方注意力加工

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After an optic neuritis (i.e., acute inflammation of the optic nerve), several patients report visual discomfort although ophthalmologic assessments show a complete recovery. To evaluate if attentional impairment could contribute to these complaints, the present study investigated global and local processing in healthy individuals and patients with recovered optic neuritis. Ten healthy controls (38.39?±6.15 years) and eleven patients (33.81?±5.57 years) with recovered right or left optic neuritis episode(s) completed a letter-detection task. The target to-be-detected (the letter a??Oa??) was presented either in the right or the left hemifield and either as a small letter surrounded by flankers or as a single large letter. Response time and response accuracy were recorded. Although no significant group effect was observed regarding the number of erroneous responses, a trend toward a significant group x stimulus size x hemifield interaction was observed (F(1,19)=42.63; p=.059). With large stimuli, participants, either controls or patients, showed a lower number of errors when stimuli were presented in the left than in the right hemifield. When small stimuli were presented, healthy controls showed a similar number of errors in both hemifields whereas optic neuritis patients made a greater number of errors when these stimuli were presented in the right than in the left hemifield. Regarding response time, no significant group main effect or interaction was observed. However, a significant stimulus size x hemifield interaction revealed that small stimuli were processed faster when presented in the right hemifield whereas large stimuli were processed faster when presented in the left hemifield. Altogether, our results did not suggest any global or local attentional anomaly in optic neuritis patients. Both healthy controls and patients showed the classic hemispheric specialization for local and global attention, in that the right hemisphere is dominant for global processing while the left hemisphere is dominant for local processing.
机译：在视神经炎（即，视神经的急性炎症）后，几个患者报告了视觉不适，尽管眼科评估表现出完全恢复。为了评估注意力损伤是否有助于这些投诉，本研究调查了健康个体和患者恢复视神经炎患者的全球和局部加工。 10个健康对照（38.39？±6.15岁）和11名患者（33.81？±5.57岁），恢复右或左视神经炎剧集完成了一封信检测任务。要检测到的目标（字母A ??）在右侧或左上半场呈现，并且作为由侧翼包围的小写或单个大写字母。记录响应时间和响应准确性。尽管关于对错误反应的数量没有观察到显着的群体效果，但观察到X刺激尺寸x的趋势（F（1,19）= 42.63; p = .059）。随着大量刺激，参与者，无论是对照还是患者，当左侧呈现刺激时，误差都比在右侧左右的左侧。当提出小刺激时，健康对照在两种血症中显示出类似的误差，而视神经炎患者在右侧呈现出这些刺激时比左侧左右的刺激误差。关于响应时间，未观察到任何重大组主要效应或相互作用。然而，显着的刺激尺寸X升降次相互作用显示，当呈现在右侧升降中时，将小刺激加工得更快，而在左上半场呈现时，加工大量刺激。完全，我们的结果并未表明视神经炎患者中的任何全球或局部注意力异常。健康对照和患者均为本地和全球关注的经典半球专业化，因为右半球是全球加工的主导，而左半球是当地加工的主导。

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