Hugdahl K, Wester K
Department of Biological and Medical Psychology, University of Bergen, Norway.
Brain Lang. 1994 Jan;46(1):166-73. doi: 10.1006/brln.1994.1009.
In our reply to Beaton and McCarthy (1993), we argue that the issue of ear extinction in dichotic listening also should take into account lesion site and lesion extension. When the lesion is primarily affecting the auditory pathways, the resulting dichotic dysfunction may be an ear extinction effect. However, when the lesion is outside of the auditory system, the absence of reports from one ear may be part of a larger cognitive deficit, involving more complex processes, like orientation and attention. Thus, by constraining the definition of an "ear extinction effect" to a perceptual deficit, Beaton and McCarthy confounds the issue of ear extinction with auditory neglect. In our reply we also present some new data from a patient with a left-sided thalamic pulvinar lesion, contrasting his dichotic listening performance with the patient reported in our original 1991 study.
在我们对比顿和麦卡锡（1993年）的回复中，我们认为，两耳分听中听觉消失的问题也应考虑病变部位和病变范围。当病变主要影响听觉通路时，由此产生的两耳分听功能障碍可能是一种听觉消失效应。然而，当病变位于听觉系统之外时，一侧耳朵无反应可能是更广泛认知缺陷的一部分，涉及更复杂的过程，如定向和注意力。因此，比顿和麦卡锡将“听觉消失效应”的定义局限于感知缺陷，这就将听觉消失问题与听觉忽视混淆了。在我们的回复中，我们还展示了一位左侧丘脑枕部病变患者的一些新数据，将他的两耳分听表现与我们1991年原始研究中报告的患者进行了对比。
