為了解決這個問題,德國萊比錫Max Planck Institute for Human Cognitive and Brain Science的研究員Thomas Fritz對喀麥隆的Mafa人進行研究。這群Mafa人他們可以說是與世隔絕,幾乎沒有電,群聚在喀麥隆的Mandara Mountains裡面。
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