2.technical the act of thinking or behaving as you did at an earlier time of your life, such as when you were a child 〔思想或行为的〕退化;退行
Examples from the Corpus
regression• In many cases you will not be sure - particularly if this is your first experience of regressiontherapy.• It is quite likely that you not only have no experience of regression therapy but have never even been hypnotized before.• When this was faced and dealt with under regression therapy, the whole situation, including the shoulderspasm, was resolved.