Abstract
Bodily state plays a critical role in our perception. In the present study, we asked the question whether and how bodily experience of weights influences time perception. Participants judged durations of a picture (a backpack or a trolley bag) presented on the screen, while wearing different weight backpacks or without backpack. The results showed that the subjective duration of the backpack picture was dilated when participants wore a medium weighted backpack relative to an empty backpack or without backpack, regardless of identity (e.g., color) of the visual backpack. However, the duration dilation was not manifested for the picture of trolley bag. These findings suggest that weight experience modulates visual duration estimation through the linkage between the wore backpack and to-be-estimated visual target. The congruent action affordance between the wore backpack and visual inputs plays a critical role in the functional linkage between inner experience and time perception. We interpreted our findings within the framework of embodied time perception.
Highlights
Our cognition and perception are grounded in bodily state as well as its interaction with environment (Clark, 1999; Barsalou, 2003)
Repeatedmeasures ANOVAs with wearing weight as factor were conducted separately on the PSEs and just-noticeable differences (JNDs) in all experiments, and further LSD contrast tests were performed to see the significant differences among conditions of wearing weights
Repeated measures ANOVA revealed a significant influence of wearing weights on the visual duration judgment, F(2,34) = 3.66, p < 0.05, η2p = 0.18
Summary
Our cognition and perception are grounded in bodily state as well as its interaction with environment (Clark, 1999; Barsalou, 2003). When participants threw a heavy ball, the subjective distance was biased by the ball that they threw (Witt et al, 2004) It has been argued (Proffitt, 2006) that such distorted perception reflects the physical energetic costs associated with action plans, as heavy objects, compared to light objects, require more physical strength to act, which is in line with the framework of embodied cognition (Clark, 1999; Barsalou, 2008) that perception, body, and action are tightly linked together. Studies have demonstrated that bodily states markedly influence time perception (Yarrow et al, 2001; Droit-Volet and Gil, 2009; Hagura et al, 2012; Shi et al, 2013; Jia et al, 2015). A recent study (Jia et al, 2015) has demonstrated that possibility of stimulus–response interaction could change perceived duration of a tactile stimulus
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