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Salt Lake City, UT, USA
Mar. 18, 2009 to Mar. 20, 2009
ISBN: 978-1-4244-3858-7
pp: 139-144
Junji Watanabe , Japan Science and Technology Agency / NTT Communication, Japan
Naoki Kawakami , Graduate School of Information Science and Technology, the University of Tokyo, Japan
Susumu Tachi , Graduate School of Information Science and Technology, the University of Tokyo, Japan
We are perceiving environment tactually in various situations. Does the perception of tactile timing change depending on the stimulated body parts or how we touch? In this research, we focused on how temporal information is combined under the influence of two distances-somatotopic and spatiotopic. Which distance is important for temporal processing? We provide two experiments to investigate this question. By using two stimuli with short intervals, we can judge simultaneity. With a long interval, two stimuli can be separated, and the time interval can be evaluated. As a result, we found that somatotopic coordinates clearly influence these processes. Conversely, they are not based on spatiotopic coordinates. Furthermore it was suggested that the judgment mechanism for about 1 second of timing information exists in the early stage of temporal processing, where even the coordinate frame remapping of somatotopic to spatiotopic has not yet been completed. Depends on how we touch stimuli the perceived temporal interval would be slightly changed.
Junji Watanabe, Naoki Kawakami, Susumu Tachi, "How is tactile timing information integrated-, somatotopically or spatiotopically?", WHC, 2009, World Haptics Conference, World Haptics Conference 2009, pp. 139-144, doi:10.1109/WHC.2009.4810876
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