Other styles of literature were at odds with the highly-political literature being promoted by the League. The "New Sensationists" (新感覺派)—a group of writers based in Shanghai who were influenced, to varying degrees, by Western and Japanese modernism—wrote fiction that was more concerned with the unconscious and with aesthetics than with politics or social problems. Most important among these writers were Mu Shiying, Liu Na'ou (劉吶鷗), and Shi Zhecun. Other writers, including Shen Congwen and Fei Ming (廢名), balked at the utilitarian role for literature by writing lyrical, almost nostalgic, depictions of the countryside. Lin Yutang, who had studied at Harvard and Leipzig, introduced the concept of "youmo" (humor), which he used in trenchant criticism of China's political and cultural situation before leaving for the United States.