Peru A, Moro V, Avesani R, Aglioti S
Università di Verona, Italy.
J Clin Exp Neuropsychol. 1996 Oct;18(5):621-30. doi: 10.1080/01688639608408287.
Overt and covert processing of contralesional information was investigated in 6 right-brain-damaged (RBD) patients with or without left hemispatial neglect by using three bedside tests that require the analysis of whole, half, and chimeric drawings. In the first task, patients named these stimuli. In the second task, patients designated as "same" or "different" drawings in a pair where one drawing was always whole and the other could be whole, half, or chimeric. In the third task, patients pointed to the more veridical, complete drawing that was presented with one half drawing, and two chimeric drawings. Although patients with no neglect performed without error in all conditions, patients with severe neglect based their performance on the analysis of the right side of the stimuli. In patients with mild neglect, not only did performance rely upon the right side of stimuli but it was also modulated by left-side information acquired either overtly or unconsciously.
通过使用三项床边测试（要求分析完整、半幅和嵌合图形），对6名患有或未患有左侧半空间忽视的右脑损伤（RBD）患者的对侧信息的显性和隐性加工进行了研究。在第一项任务中，患者说出这些刺激物的名称。在第二项任务中，患者要在一对图形中指定哪些是“相同”或“不同”的，其中一幅图形总是完整的，另一幅可以是完整的、半幅的或嵌合的。在第三项任务中，向患者呈现一幅半幅图形和两幅嵌合图形，让他们指出更逼真、完整的图形。尽管无忽视症状的患者在所有情况下都能无误完成任务，但严重忽视症状的患者是基于对刺激物右侧的分析来完成任务的。在轻度忽视症状的患者中，其表现不仅依赖于刺激物的右侧，而且还受到通过显性或隐性方式获取的左侧信息的调节。
