This study examined the effects of exposure duration on kansei evaluation for emotional
pictures
. Thirty-two university students participated in kansei evaluation experiment. They answered the questionnaire constructing 23 kansei wards at 2 times to presented 8
pictures
. Picture presentation was a very short (5 ms) at fist time, while that was a long enough for participants to recognize it at second time. Presented 8
pictures
were 4 emotional kinds (positive, negative, neutral and unfamiliar neutral) in each living and non-living category. Comparison of rating scores for the short with the long exposure duration indicated significant differences in some conditions. In neutral
pictures
, particularly unfamiliar neutral picture, ratings for the long exposure time changed opposite direction from short time exposure. In both positive and negative
pictures
, however, the ratings were promoted by long time exposure. These findings implied that kansei evaluation at least including a primitive emotional process and late cognitive process.
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