Choice Repetition Bias in Intertemporal Choice: An Eye-Tracking Study

Intertemporal choices (i.e., the choice between a sooner available but smaller reward and a later available but larger reward) were initially thought to reflect stable preferences for immediate or delayed rewards. However, recently, it has been shown that intertemporal choices are influenced by factors such as context variables and attentional processes. Here, we investigate if another factor, the choice repetition bias, affects decision making and attentional processes in intertemporal choice. The choice repetition bias is characterized by the tendency to repeat previous choices and to be slower when switching to an alternative choice. In a series of two experiments (including a preregistered, eye-tracking study), we find that the choice repetition bias exists in intertemporal choice. We also find tentative support for an early attentional bias towards the favored attribute dimension of the previous choice; however, this effect disappears when taking the whole decision process into account. This finding raises interesting questions about the cognitive processes underlying the choice repetition bias. In addition, we successfully replicate other attentional effects from the intertemporal choice literature (e.g., more fixations on monetary dimension, gaze cascade effect).