Abstract：
Geometry has been identified as a cognitive domain where deaf individuals exhibit relative strength, yet the neural mechanisms underlying geometry processing in this population remain poorly understood. This fMRI study aimed to investigate the neural correlates of geometry processing in deaf and hearing individuals. Twenty-two adult deaf signers and 25 hearing non-signers completed a geometry decision task. We found no group differences in performance, while there were some differences in parietal activation. As expected, the posterior superior parietal lobule (SPL) was recruited for both groups. The anterior SPL was significantly more activated in the deaf group, and the inferior parietal lobule was significantly more deactivated in the hearing group. In conclusion, despite similar performance across groups, there were differences in the recruitment of parietal regions. These differences may reflect inherent differences in brain organization due to different early sensory and linguistic experiences.
摘要：
几何已被确定为聋人表现出相对力量的认知领域，然而，在这一人群中，几何加工的神经机制仍然知之甚少。这项fMRI研究旨在调查聋人和听力个体几何处理的神经相关性。22名成年聋哑签名者和25名听力非签名者完成了几何决策任务。我们在表现上没有发现群体差异，而顶叶激活有一些差异。不出所料,两组均纳入顶叶后上小叶(SPL).聋组的前SPL明显更活跃，听力组下顶叶小叶明显失活。总之,尽管各组表现相似，顶叶区域的招募存在差异。这些差异可能反映了由于早期感觉和语言体验不同而导致的大脑组织的固有差异。
