| Presentation | 2007-06-04 The adaptation of vision-haptics simultaneity judgments for the deformation of virtual object Kohske Takahashi, Jun Saiki, Katsumi Watanabe, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Simultaneity of signal inputs into different sensory modalities seems to be important for human to act in virtual environment. However, complete simultaneity as in a real world may be difficult to be realized in a virtual environment. In such case, it is desirable that human can compensate the temporal delay of inputs. Here, we investigate the human ability of vision-haptics adaptation for temporal delay by using psychophysical methods. In the adaptation phase, subjects experienced visually and haptically deformation of virtual object with a fixed visual-haptic temporal lag (+/- 250 or 0 ms). In the following test phase, the same stimulus was presented with variable lag and subjects judged whether visual and haptic deformations occurred simultaneously. the results showed that the PSS (i.e., the mean of psychometric function) was shifted toward the adapted lag by 10-20 ms. In the experiment 2, we tested whether the adaptation alter the PSS between vision and the opposite hand (i.e. right hand adaptation and left hand test, and vice versa). The results showed no aftereffect of adaptation, suggesting that the adaptation of simultaneity does not occur between visual- and haptic-time, but is closed in the body parts and vision. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Vision / Haptics / Simultaneity Judgments / Adaptation / Virtual Reality |
| Paper # | MVE2007-5 |
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| Conference Information | |
| Committee | MVE |
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| Conference Date | 2007/5/28(1days) |
| Place (in Japanese) | (See Japanese page) |
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| Topics (in Japanese) | (See Japanese page) |
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| Registration To | Media Experience and Virtual Environment (MVE) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | The adaptation of vision-haptics simultaneity judgments for the deformation of virtual object |
| Sub Title (in English) | |
| Keyword(1) | Vision |
| Keyword(2) | Haptics |
| Keyword(3) | Simultaneity Judgments |
| Keyword(4) | Adaptation |
| Keyword(5) | Virtual Reality |
| 1st Author's Name | Kohske Takahashi |
| 1st Author's Affiliation | SHIMOJO Implicit Brain Function Project, ERATO, Japan Science and technology() |
| 2nd Author's Name | Jun Saiki |
| 2nd Author's Affiliation | Graduate School of Human and Environmental Studies, Kyoto University |
| 3rd Author's Name | Katsumi Watanabe |
| 3rd Author's Affiliation | Research Center for Advanced Science and Technology, the University of Tokyo |
| Date | 2007-06-04 |
| Paper # | MVE2007-5 |
| Volume (vol) | vol.107 |
| Number (no) | 80 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |