Options
A study using the time adaptation paradigm: Does rTMS influence time perception or time reference?
Date Issued
2025
Conference
Citation
Li, W. O., Yuen, K. S. L., Chang, D. H. F., Yu, C. K. C. (17-20 Jun 2025). A study using the time adaptation paradigm: Does rTMS influence time perception or time reference?. APCV/EPC 2025, Sydney, Australia.
Type
Conference Paper
Abstract
Repeated exposure to stimuli of similar duration can influence subsequent time
perception. Our hypothesis was that if repetitive transcranial magnetic stimulation (rTMS) affects mental time references, a main effect would be observed regardless of the adaptation manipulation. A total of 120 participants took part in the study and were divided into four groups based on a 2x2 between-subject design, with two stimulation locations (rDLPFC vs cerebellum) and two adapted durations (500 vs 2000 ms). The 2x2 within-subject conditions included sham vs rTMS stimulation and control vs adapted, with a reference time of 500 ms for the time bisection tasks. The analysis included 107 valid participants. In the sham stimulation condition, a main effect was observed, showing a reduction in perceived subjective equivalent (PSEs) after adaptation (F1,103=9.24, p<.01,
η2=0.02). However, the main adaptation effect was not significant in the rTMS conditions
(F1,102=0.01, p=.92, η2<0.01). Instead, a significant interaction was found between adapted duration, adaptation, and stimulation locations (F1,102=4.42, p=.04, η2=0.01). Specifically, rTMS on the cerebellum disrupted the aftereffect of 500 ms adapted duration. These results are consistent with previous studies highlighting the role of the cerebellum in sub-second perception. Furthermore, they demonstrate that rTMS perturbation can influence the perception process rather than the mental time reference.
Availability at HKSYU Library
