MIB Transition for Real and After-image S Naito, R Shohara, M Katsumura |
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Human and Information Science, Tokai University, Japan
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| Introduction: Time transition of Motion Induced Blindness (MIB) was investigated using the dedicated stimulus configuration. The onset and offset time delays of MIB after the inducing figures’ onset and offset moments were estimated. The MIB for after image test figures was also investigated in a similar way. The after image was created in such a way that at the MIB onset moment the test figure was changed to the background color. Methods: Twelve 2.5 degree diameter colored disks were circularly arranged at 12.5 degree periphery. They were test stimuli. At the two symmetrical positions, the black ring shaped inducers were presented. They expanded from the disk border to 5.5 degree diameter in 167ms and vanished. Then the inducers shifted its position in anti-clock wise direction to the neighboring disk. The procedure repeated. Results: The short onset time delay not more than 167ms was observed. MIB effects lasted more than 333ms even after the inducers vanished. For after images, the similar onset delay was observed and MIB could last more than 900ms after the inducer vanished. Conclusions: The onset and offset time delays of MIB were confirmed in general. The delays varied quantitatively depending on the stimuli configurations and time sequences. |
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