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28th International Congress of Psychology August 8 ... - U-netSURF

28th International Congress of Psychology August 8 ... - U-netSURF

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1028.161 Illusory body posture modifies the control <strong>of</strong> action, Taku Konishi 1 , Hirokazu Nishio 1 ,<br />

Kumiko Enokizono 1 , Takaji Matsushima 2 , 1 Kobe University, Japan; 2 Kobe University, Japan<br />

We examined the contribution <strong>of</strong> visual and proprioceptive information to perception <strong>of</strong> body<br />

posture and control <strong>of</strong> action. We have demonstrated that the vibratory stimulation <strong>of</strong> neck<br />

proprioception induced an alternation <strong>of</strong> perceived position <strong>of</strong> the head, and that the visual<br />

distortion <strong>of</strong> one’s left hand through the mirror image <strong>of</strong> his/hers right hand could modulate the<br />

detection <strong>of</strong> tactile stimulation to the fingers <strong>of</strong> the left hand. We elucidated how such perceptual<br />

distortion <strong>of</strong> body by visual or proprioceptive information affected the subsequent action,<br />

including its aftereffect.<br />

1028.162 Response modality domination or interaction between visual and haptic estimating <strong>of</strong><br />

length, Xiuying Qian 1 , Xiaomei Xu 2 , Xiaolan Song 1 , 1 Zhejiang University, China, 2 Shangdong<br />

University, China<br />

A new design was developed to separate tactile and visual percepion at same time. Three<br />

experiments compared the estimating length through vision and touch domination. Wood bar with<br />

1cm2 section, length from 60.0mm to 80.0mm were used as stimuli. The tasks were conducted to<br />

different assemble stimulus associated with various horizontal-vertical bar set, length difference<br />

between bars and the combination way <strong>of</strong> array. Simultaneous or Nonsimultaneous modality<br />

capture under different conditions were used. The results showed visual-haptic horizontal-vertical<br />

illusion existed and there had been some across effects between two domains.<br />

1028.163 The hapticlike activation during visual tasks, Xiuying Qian, Xiaolan Song, Xiaohu<br />

Zhao, Xiaowei Tang, Zhejiang University, China<br />

Usually, works in haptic or tactile perception cared what and how the visual perception had helped<br />

the haptic or tactile perception. Works in human visual perception has been disconnected from<br />

research on haptic experience's cognitive functioning. The present study focuses that adults<br />

subjects how to retrieve the haptic information through visual channel with fMRI technology. The<br />

results showed there had been an activation in BA6 when adults subjects were identifying the<br />

visual texture's roughness and there had been activations in other visual-parietal areas when<br />

identifying visual shapes.<br />

1028.164 Control <strong>of</strong> grasping movements: The effect a remote visual condition, Richard<br />

Palluel-Germain, Frederic Boy, Jean-Pierre Orliaguet, Grenoble University, France<br />

In this study we hypothesize that movements visually controlled in two dimensions are planned to<br />

be straight in the extrinsic space. To this end subjects carried out grasping movements visually<br />

controlled through a vertical video monitor where no scale or directional biases were introduced.<br />

The results showed that hand paths in a prehension movement were straighter in this indirect<br />

visual feedback condition than in a control condition. Therefore, we may conclude that in a video<br />

controlled situation, imposing a visual constraint, trajectories are programmed to follow a straight<br />

line in the extrinsic space.<br />

1028.165 Fundamental study on psychological refractory period in reaction time, Kiichi<br />

Sugiyama 1 , Yamato Sato 2 , Singo Takahashi 3 , Toshimi Nakatsubo 4 , Katsuei Sugawara 5 ,<br />

1 Hokkaido University <strong>of</strong> Education, Japan; 2 Aichi University; 3 Hanakawa-Kita Junior High<br />

73

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