Auditory agnosia and auditory spatial deficits following left hemispheric lesions: evidence for distinct processing pathways
Auditory agnosia and auditory spatial deficits following left hemispheric lesions: evidence for distinct processing pathways
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DOI：
10.1016/s0028-3932(99)00141-4
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发表时间：
2000-01-01
期刊：
影响因子：
2.6
通讯作者：
Steck, AJ
中科院分区：
文献类型：
--
作者：
Clarke, S;Bellmann, A;Steck, AJ
对4例局限性左半球病变患者的听觉识别和听觉空间功能进行了研究。FD患者对环境声音的识别严重不足，但听觉定位和听觉运动感知正常。病变包括左侧上级，中，下颞回和外侧听觉区（如在以前的解剖学研究中确定），但幸免于Heschl的回。声辐射和丘脑。患者SD具有与FD相同的特征，对环境声音的识别不足，但听觉定位和运动感知正常。该病变包括额凸面的后下部和颞叶的前三分之一，来自非人灵长类动物的数据表明，后者与外侧听觉区相互关联。患者MA在环境声音识别、听觉定位和听觉运动感知方面存在缺陷，证实听觉空间功能可能受到左侧单侧损伤的干扰;病变涉及颞上区和颞叶。额后下和顶叶前下凸面。患者CZ的听觉运动知觉严重不足，部分听觉定位不足，但对环境声音的识别正常;病变涉及大部分的顶额凸面和颞上区。我们提出听觉信息在人类听觉皮层中沿着沿着两条不同的通路进行处理。一个外侧用于听觉识别，一个内侧和后部用于听觉空间功能。(C)2000爱思唯尔科技有限公司版权所有。
Auditory recognition and auditory spatial functions were studied in four patients with circumscribed left hemispheric lesions. Patient FD was severely deficient in recognition of environmental sounds but normal in auditory localisation and auditory motion perception. The lesion included the left superior, middle and inferior temporal gyri and lateral auditory areas (as identified in previous anatomical studies), but spared Heschl's gyrus. the acoustic radiation and the thalamus. Patient SD had the same profile as FD, with deficient recognition of environmental sounds but normal auditory localisation and motion perception. The lesion comprised the postero-inferior part of the frontal convexity and the anterior third of the temporal lobe, data from non-human primates indicate that thr latter are interconnected with lateral auditory areas. Patient MA was deficient in recognition of environmental sounds, auditory localisation and auditory motion perception, confirming that auditory spatial Functions can be disturbed by left unilateral damage; the lesion involved the supratemporal region as well as the temporal. postero-inferior frontal and antero-inferior parietal convexities. Patient CZ was severely deficient in auditory motion perception and partially deficient in auditory localisation, but normal in recognition of environmental sounds; the lesion involved large parts of the parieto-frontal convexity and the supratemporal region. We propose that auditory information is processed in the human auditory cortex along two distinct pathways. one lateral devoted to auditory recognition and one medial and posterior devoted to auditory spatial functions. (C) 2000 Elsevier Science Ltd. All rights reserved.