楔前叶,英文名字为(precuneus),是顶上小叶的一部分,位于大脑半球内侧。它位于楔叶前部(枕叶上部),前界是扣带沟的边缘支,后部是顶枕沟,下方是顶上沟。关于楔前叶的神经影像学以及神经心理学文献相对较少。但是通过近期的脑功能成像研究发现,楔前叶与许多高水平的认知功能有关,如情景记忆,自我相关的信息处理,以及意识的各个方面。
n. precuneus
misc. praecuneus ; quadrate gyri ; quadrate lobe of cerebrum
乘法计算还见左侧楔前叶和右侧梭状回激活。
In addition, the left precuneus and the right fusiform were activated in multiplication calculation.
此外,有最低意识的患者楔前叶连接明显强于无意识患者。
Furthermore, precuneus connectivity was found to be significantly stronger in minimally conscious patients as compared with unconscious patients.
但是,相对于个人风险任务,环境风险任务导致较强的在后扣带回和楔前叶的短暂神经活动。
However, relative to the personal risk identification task, the environmental risk identification task resulted in greater transient activity in the posterior cingulate cortex and precuneus.
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