信息检索与数据挖掘 2019/3/318 SIGIR 2016 Best Paper Understanding Information Need:an fMRI Study In this paper,we investigate the connection between an information need and brain activity.Using functional Magnetic Resonance Imaging (fMRD),we measured the brain activity of twenty four participants while they performed a Question Answering (Q/A)Task,where the questions were carefully selected and developed from TREC-8 and TREC 2001 Q/A Track.The results of this experiment revealed a distributed network of brain regions commonly associated with activities related l to in-formation need and retrieval and differing brain activity in processing scenarios when participants knew the answer to a given question and when they did not and needed to search.信息检索与数据挖掘 2019/3/31 8 SIGIR 2016 Best Paper Understanding Information Need: an fMRI Study • In this paper, we investigate the connection between an information need and brain activity. Using functional Magnetic Resonance Imaging (fMRI), we measured the brain activity of twenty four participants while they performed a Question Answering (Q/A) Task, where the questions were carefully selected and developed from TREC-8 and TREC 2001 Q/A Track. The results of this experiment revealed a distributed network of brain regions commonly associated with activities related to in-formation need and retrieval and differing brain activity in processing scenarios when participants knew the answer to a given question and when they did not and needed to search