regressionist

Noun

 * 1) One who promotes or follows regressionism.
 * This politician is a regressionist who disregards what people care about now.
 * 1) One who travels back in time.
 * 2)  One who carries out regressions, inducing a patient to act out behaviour typical of an earlier developmental stage.
 * 1)  One who carries out regressions, inducing a patient to act out behaviour typical of an earlier developmental stage.