Affiliation:
1. Institute of Medical Psychology Ludwig Maximilian University Munich Germany
2. School of Psychological and Cognitive Sciences Peking University Beijing China
3. Beijing Key Laboratory of Behavior and Mental Health Peking University Beijing China
Abstract
AbstractEven though in physics “time” is considered to be continuous, how the brain and mind deal with time might be different. It has been proposed that in cognition, time windows provide logistic platforms for information processing, such as the low‐frequency 3‐s time window. The following series of behavioral experiments may shed light on the dynamics within such a time window. Using a duration reproduction paradigm, we first replicated a pattern of reproduced duration observed in a previous single‐case study. Specifically, the reproduction increases as the pause between standard duration and reproduction increases, but only within the time window of some 3 s; when the pause goes beyond 4 s, the reproduction reaches a plateau of a subjective set‐point. This increasing phase is named the “temporal transition zone.” Three more experiments were performed to test the features of the transition zone as a low‐frequency time window. It is also observed with different standard durations (2, 3, 4.5 s, in Experiment 2), and even when the frequency of the auditory stimuli was different in standard and reproduction (300 Hz in standard duration and 400 Hz in reproduction, in Experiment 4). The transition zone was observed only with pause durations of 2 to 3 s; when the shortest pause duration was 5 s, the transition zone was no longer observed, and the reproduction was stable at the subjective set‐point (in Experiment 3). Taken together, we suggest that the temporal transition zone indicates a pre‐semantic logistic platform to organize and process the information flow; in such a time window of some 3 seconds, the identity of an ongoing event is substantiated, building the “subjective present.”
Funder
National Natural Science Foundation of China
China Scholarship Council