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Wearing weighted backpack dilates subjective visual duration: the role of functional linkage between weight experience and visual timing.

Jia L, Shi Z, Feng W - Front Psychol (2015)

Bottom Line: 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.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.

View Article: PubMed Central - PubMed

Affiliation: Department of Education, School of Humanities, Jiangnan University Wuxi, China.

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.

No MeSH data available.


Related in: MedlinePlus

Results of Experiment 1. Mean proportions of ‘long’ responses in the visual duration bisection task, and the fitted psychometric functions, are plotted against the probe durations for the three weight conditions. The inset figure shows the mean PSEs, and related standard errors, for the three conditions (all ∗p < 0.05).
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Figure 3: Results of Experiment 1. Mean proportions of ‘long’ responses in the visual duration bisection task, and the fitted psychometric functions, are plotted against the probe durations for the three weight conditions. The inset figure shows the mean PSEs, and related standard errors, for the three conditions (all ∗p < 0.05).

Mentions: Experiment 1 examined the influences of wearing a backpack on the duration judgment of the same backpack picture. Figure 3 shows the psychometric curves of the visual-duration bisection task for the weighted backpack, empty backpack, and baseline conditions, respectively. The mean PSEs (±SE) were 373 ± 9, 391 ± 9, and 394 ± 13 ms for the weighted backpack, empty backpack, and baseline conditions (Table 1). Repeated measures ANOVA revealed a significant influence of wearing weights on the visual duration judgment, F(2,34) = 3.66, p < 0.05, = 0.18. The further post-hoc contrast tests showed significant differences in PSEs between the weighted and empty backpack conditions (difference: 18 ms, p < 0.05), and between the weighted backpack and baseline conditions (difference: 21 ms, p < 0.05), but not between the empty backpack and baseline conditions (p = 0.70). The JNDs (±SE) were 53 ± 6, 50 ± 4, and 55 ± 3 ms for the weighted backpack, empty backpack, and baseline conditions (Table 1). A repeated-measures ANOVA failed to show any significant difference on JNDs among these three conditions, F(2,34) = 0.69, p = 0.51, = 0.04.


Wearing weighted backpack dilates subjective visual duration: the role of functional linkage between weight experience and visual timing.

Jia L, Shi Z, Feng W - Front Psychol (2015)

Results of Experiment 1. Mean proportions of ‘long’ responses in the visual duration bisection task, and the fitted psychometric functions, are plotted against the probe durations for the three weight conditions. The inset figure shows the mean PSEs, and related standard errors, for the three conditions (all ∗p < 0.05).
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4562260&req=5

Figure 3: Results of Experiment 1. Mean proportions of ‘long’ responses in the visual duration bisection task, and the fitted psychometric functions, are plotted against the probe durations for the three weight conditions. The inset figure shows the mean PSEs, and related standard errors, for the three conditions (all ∗p < 0.05).
Mentions: Experiment 1 examined the influences of wearing a backpack on the duration judgment of the same backpack picture. Figure 3 shows the psychometric curves of the visual-duration bisection task for the weighted backpack, empty backpack, and baseline conditions, respectively. The mean PSEs (±SE) were 373 ± 9, 391 ± 9, and 394 ± 13 ms for the weighted backpack, empty backpack, and baseline conditions (Table 1). Repeated measures ANOVA revealed a significant influence of wearing weights on the visual duration judgment, F(2,34) = 3.66, p < 0.05, = 0.18. The further post-hoc contrast tests showed significant differences in PSEs between the weighted and empty backpack conditions (difference: 18 ms, p < 0.05), and between the weighted backpack and baseline conditions (difference: 21 ms, p < 0.05), but not between the empty backpack and baseline conditions (p = 0.70). The JNDs (±SE) were 53 ± 6, 50 ± 4, and 55 ± 3 ms for the weighted backpack, empty backpack, and baseline conditions (Table 1). A repeated-measures ANOVA failed to show any significant difference on JNDs among these three conditions, F(2,34) = 0.69, p = 0.51, = 0.04.

Bottom Line: 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.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.

View Article: PubMed Central - PubMed

Affiliation: Department of Education, School of Humanities, Jiangnan University Wuxi, China.

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.

No MeSH data available.


Related in: MedlinePlus