有一天,弗雷德感到意气消沉。他通常应付情绪低落的办法是避不见人。但这天他要和上司举行重要会议,所以决定装出一副快乐的表情。他在会议上笑容可掬,谈笑风生,装成心情愉快而又和蔼可亲的样子。令他惊奇的是,不久他发现自己果真不再抑郁不振了。弗雷德并不知道,他无意中采用了心理学研究方面的一项新原 One day Fred felt depressed. He usually copes with depressed moods by avoiding people. But this day he had to hold an important meeting with his boss, so decided to put on a happy look. He was smiling at the meeting, laughing, posing amiable and affable look. To his surprise, he soon found himself really depressed. Fred did not know that he inadvertently adopted a new discipline in psychology