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Is time perception band-pass filtered? An examination of the aftereffect of time adaptation with rTMS = 時間感知是否會因應時間長短而有所不同？使用rTMS研究時間適應的後效應
Principal Investigator
Department
Grant Awarding Body
Research Grants Council
Grant Type
Faculty Development Scheme
Project Code
UGC/FDS15/M03/20
Amount Awarded
HK$944,962
Funding Year
2020-2021
Duration of the Project
24 months
Status
Completed
Abstract
Subjective time perception depends on the physical time experienced and is modulated by a set of internal and external factors. Recently, a time adaptation aftereffect has been reported after presenting stimuli of similar duration repeatedly to participants. As a result of repeated exposures to the stimuli of similar durations, subsequent perception to duration slightly similar to the adapted duration was repulsed away. A Channel Based Duration model is proposed to explain the time adaptation aftereffect. It specifically hypothesised that the perceptual mechanism of time is band-pass tuned to various durations. Time adaptation is a result of the recalibration of the mechanism. Adapting to a certain duration repeatedly and specifically would change the reactivity of that channel. Therefore, subsequent perception is affected. This proposed mechanism is similar to other sensory adaptation models, while the changed reactivity is argued to be a change in activities or their gain control. The reported bandwidth of the channels is much finer than the common debate of time perception that sub- and supra- second perception is governed by different mechanisms. Further, there is supportive evidence that the adaptation extends across the sub- and supra-second range...