Developmental sex differences in basic visuospatial processing: differences in strategy use?
Developmental sex differences in basic visuospatial processing: differences in strategy use?
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DOI：
10.1016/j.neulet.2008.10.094
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发表时间：
2009-01-16
影响因子：
2.5
通讯作者：
Cutting LE
中科院分区：
文献类型：
--
作者：
Clements-Stephens AM;Rimrodt SL;Cutting LE
研究视觉空间加工中的性别差异的功能神经成像研究传统上侧重于成年人的心理旋转任务，因为这是一个一贯可靠的发现，很少有研究在更基本的水平上考察利用视觉空间技能的任务。此外，很少有研究结合调查年轻人群中是否存在差异来研究这一问题。因此，功能神经成像被用来检查儿童时期是否存在和/或发展基于性别的差异。32名表现相匹配的参与者参与了这项研究。总体而言，两组在双侧顶上叶、纹外皮质和小脑都显示出重叠的激活；性别差异显示男性在右侧舌回和小脑的激活明显更大。不同年龄组之间的正式比较显示，老年男性表现出左脑区域的参与，而女性则表现出更多的双边(R&gT；L)参与传统上与视觉空间加工相关的区域。总而言之，这些结果表明，与年轻男性相比，年长的男性可能会使用与视觉运动网络相关的区域，而女性则利用空间注意力和工作记忆中指示的区域。此外，这些结果还可能表明，在策略使用上可能存在早期明显的差异，并可能随着时间的推移而继续发展，这体现在与视觉空间加工相关的网络的不同参与上。我们的数据为视觉空间加工的神经基础上的性别差异提供了证据。
Functional neuroimaging studies investigating sex differences in visuospatial processing traditionally focus on mental rotation tasks in adults, as it is a consistently robust finding, with a limited number of studies examining tasks tapping visuospatial skills at a more basic level. Furthermore, fewer studies have examined this issue in conjunction with investigating whether differences exist in younger populations. Therefore, functional neuroimaging was used to examine whether sex-based differences exist and/or develop during childhood. Thirty-two participants, matched on performance, participated in this study. Overall, both groups showed overlapping activation in bilateral superior parietal lobe, extrastriate cortex, and cerebellum; differences between the sexes showed that males had significantly greater activation in right lingual gyrus and cerebellum. Formal comparisons between age groups revealed that older males show engagement of left hemisphere regions, while females show greater bilateral (R > L) engagement of regions traditionally associated with visuospatial processing. Together, these results suggest that older males, as compared to younger males, may engage regions that are associated with a visuomotor network, whereas females utilize areas indicated in spatial attention and working memory. Furthermore, these results could also suggest that there may be differences in strategy use that are evident early on and may continue to develop over time evident by differential engagement of networks associated with visuospatial processing. Our data provide evidence for sex-based differences in the neural basis of visuospatial processing.
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