HEMISPHERIC SPECIALIZATION AND COMMUNICATION

该子项目是利用 由NIH/NCRR资助的中心赠款提供的资源。子项目和 研究者（PI）可能从另一个NIH来源获得了主要资金， 因此可以在其他CRISP条目中表示。列出的机构是 中心，不一定是研究者的机构。 今年，我们实验室的研究集中在黑猩猩颞平面（PT）（Wernicke区的同源物）的体积和侧化的体内和死后分析。 我们发现，PT从磁共振图像测量对应的细胞结构分布的布罗德曼区22（BA 22）。 在大体解剖学和细胞水平的分析中，在黑猩猩中发现了显著的种群水平的不对称性。我们进一步发现，PT中不对称的变化与手势交流的偏手性有关，但与其他手动动作无关，这表明它在交流中具有功能性作用。

This subproject is one of many research subprojects utilizing the resources provided by a Center grant funded by NIH/NCRR. The subproject and investigator (PI) may have received primary funding from another NIH source, and thus could be represented in other CRISP entries. The institution listed is for the Center, which is not necessarily the institution for the investigator. This year, studies in our laboratory focused on the in vivo and post-mortem analysis of the volume and lateralization of the planum temporale (PT) (the homolog to Wernicke's area) in chimpanzees. We found that the PT as measured from magnetic resonance images corresponds well to the cytoarchitectural distribution of Brodmann's area 22 (BA22). At both the gross anatomical and cellular levels of analysis, significant population-level leftward asymmetries were found in the chimpanzees. We further found that variation in asymmetries in the PT were associated with handedness for gestural communication but not other manual actions, suggesting that it has a functional role in communication.