在布罗卡的区域的猿同类的猿同类中, Orofacial somatomotor反应
Michael Petrides1, Geneviève Cadoret, Scott Mackey
1Montreal Neurological Institute, McGill University, 3801 University Street, Montreal, Quebec H3A 2B4, Canada. petrides@ego.psych.mcgill.ca
Nature
|July 1, 2005
概括
科学家们发现了一个子大脑区域,与人类布罗卡的区域 (区域44) 相当. 这一区域控制着口腔面部肌肉,这表明与语音产生有进化联系.
科学领域:
- 神经科学是一个神经科学.
- 比较解剖学的比较解剖学
- 灵长类大脑研究研究
背景情况:
- 人类布罗卡的区域 (cytoarchitectonic区域 44) 对于语音产生至关重要.
- 在子中存在类似区域的存在已被争论.
- 了解同源的大脑区域有助于追踪复杂功能的进化路径.
研究的目的:
- 为了研究子是否具有与人类皮质区域44相似的皮质区域.
- 在中描述这种潜在同类区域的建筑和功能性质.
- 探索与语言相关的大脑区域的进化起源.
主要方法:
- 对的额叶区域进行了定量建筑分析.
- 神经元活动的电生理记录. 神经元活动的电生理记录.
- 在大脑中进行电气皮层内微刺激.
主要成果:
- 确定了的独特皮质区域,在建筑上与人类区域44相似.
- 这种子区域44位于原粒前运动区域6的腹部部分前面.
- 电生理学和刺激数据表明,它与面部或面部肌肉控制有关.
结论:
- 人类区域44的功能和建筑同类存在于大脑中.
- 这一区域很可能是为了对包括沟通在内的面部行动的高层控制而演变的.
- 人类区域44可能随后适应控制语音生产的特定方面.
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