Abstract
For the perception of haptic environmental properties such as stiffness, damping, or inertia, estimates of force and movement must be combined continuously over time. We investigate the relations between sensitivity of perceptual judgments about force and the time a perceptual response is given with different types of hand movements. Portions of response data are selected according to their response time and psychometric functions are fitted. In this way, we can estimate time-dependent JND and PSE functions. We show that the JND is different depending on which portion on the response time data it is based on. The JND follows the same pattern for responses given after 650 ms irrespective of the movement performed. Furthermore, we find that forces are consistently overestimated during movement.
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Acknowledgments
This work was supported by a fellowship within the Postdoc-Programme of the German Academic Exchange Service (DAAD), the FP7 ICT grant no. 287888 http://www.coglaboration.eu and the Royal Society research grant RG110521. The authors thank Stephanie Mason for her help with the data collection.
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Rank, M., Di Luca, M. (2014). Response Time-Dependent Force Perception During Hand Movement. In: Auvray, M., Duriez, C. (eds) Haptics: Neuroscience, Devices, Modeling, and Applications. EuroHaptics 2014. Lecture Notes in Computer Science(), vol 8618. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-44193-0_12
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DOI: https://doi.org/10.1007/978-3-662-44193-0_12
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