Abstract:In recent, plenty of studies revealed that decision making is affected by the language
presented in a given problem (native vs. foreign), which is named as foreign language
effect. To explain the cognitive mechanisms of such effect, researchers appealed to the dual-process model and proposed a reduced intuition (i.e., affect) account and an increased
deliberation (i.e., cognition) account. The present paper reviewed evidences of supporting
the existence of foreign language effect, and studies of testing the reduced intuition account
or the increased deliberation account, or both. It was found that the current research were
still unable to figure out which account is right. For such issue, we claim that one of
possible reasons is that the designs of current studies cannot independently quantify the
contribution of affect and cognition processes within individuals. Future studies could use a
process dissociation procedure which is able to measure the strength of two different
processes, and an experimental manipulation to interfere with cognition representation or
negative affect, to address the roles of cognition and emotion in the foreign language effect.