Visuospatial working memory in Turner's syndrome
Visuospatial working memory in Turner's syndrome
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DOI：
10.1016/s0278-2626(01)80041-5
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发表时间：
2001-06-01
影响因子：
2.5
通讯作者：
Vecchi, T
中科院分区：
文献类型：
--
作者：
Cornoldi, C;Marconi, F;Vecchi, T
特纳综合征是一种遗传性疾病，特别是女性，其中一条X染色体部分或完全缺失。这种综合征与身体特征有关，如身材矮小或原发性和继发性发育失败，以及特定的认知功能模式。研究表明，受特纳综合征影响的女性在测量视觉空间能力的任务中表现不佳，并且语言智商明显高于表现智商。虽然这一结果得到了强有力的实证支持，但视觉空间缺陷的性质仍不清楚。最近关于视觉空间过程的研究强调了潜在的认知结构比以前提出的更复杂，并且已经报道了几种分离（例如，视觉与空间、顺序与同时、或被动与主动过程）。在本研究中，我们详细分析了与特纳综合征相关的视觉空间缺陷的特点，提出了一个全面的电池的任务，旨在挖掘视觉空间工作记忆的各个方面。结果证实，特纳综合征与一般的视觉空间工作记忆缺陷，但不同情况下的性能模式可以是不同的，与ii更强调主动视觉空间过程，无论是顺序或同时空间过程。(C)北京：科学出版社.
Turner's syndrome is a genetic disorder, specific to women, in which one of the X chromosomes is partially or completely deleted. This syndrome is associated with physical features such as short stature or failure in primary and secondary sexual development, together with a specific pattern of cognitive functions. It has been suggested that women affected by Turner's syndrome perform poorly in tasks measuring visuospatial abilities and have a verbal IQ significantly higher than performance IQ. Although this result hits received strong empirical support, the nature of the visuospatial deficit is still unclear. Recent studies on visuospatial processes have highlighted that the underlying cognitive structure is more complex than previously suggested and several dissociations have been reported (e.g., visual vs spatial, sequential vs simultaneous, or passive vs active processes). In thr present study we analyze in detail the characteristics of the visuospatial deficit associated with Turner's syndrome by presenting four young women with a comprehensive battery of tasks designed to tap all aspects of visuospatial working memory. Results confirm that Turner's syndrome is associated with a general visuospatial working memory deficit, but the pattern of performance of different cases can be different, with ii greater emphasis on active visuospatial processes, and on either sequential or simultaneous spatial processes. (C) 2001 Academic Press.