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Schedule in July 2019The 48th Perceptual Frontier Seminar: Towards understanding multimodal perceptionDate and time: Monday, 22 July 2019, 16:30-18:45 Program16:40-17:10 Is touching believing? Color influence in object temperature perception While direct manual exploration is commonly thought to be the most reliable way to obtain information about object properties such as temperature and weight, our haptic object perception is subject to influence from other modalities and the resulting perception is not always veridical. In this talk, I will present an overview of multimodal influence in haptic object perception, with special focus on color’s influence on object temperature perception. The strategies used by the brain to integrate multimodal sensory inputs will be discussed, together with the implications for virtual reality applications. 17:10-17:20 The effects of color vision diversity and age on color-temperature association To reveal how people with different color vision types acquire associations between color and temperature through development, the color-temperature association patterns for 20 Munsell colors were collected from children and adults with various color vision types. Children may acquire the same association patterns observed in trichromatic adults (the majority in the population) through social interaction and/or automatically learn these association patterns through interaction with objects. 17:20-17:30 Irrelevance of stream segregation in cognitive temporal resolution Whether stream segregation affects cognitive temporal resolution has been investigated with a short marker and a sequence of two pure tones successively repeated several times. Participants were asked to identify the pitch of a test tone where the marker was presented. A summary of previous investigations and a plan of my investigation will be presented. 17:30-17:40 Locally time-scrambled mosaic speech: The effects on intelligibility Locally time-scrambled mosaic speech was invented to investigate how multi-time scale processing works in speech perception with a short time-window (20-30 ms) and a long time-window (~200 ms). Locally time-scrambled mosaic speech was made by randomizing the order of specific ranges of time-segments in original mosaic speech. Intelligibilities of locally time-scrambled mosaic speech and mosaic speech will be compared with several time-ranges of scrambling. 17:40-17:50 Break 17:50-18:00 Investigation of color saliencies through visual oddball task To investigate the difference in color saliency among individuals with different color vision types, a visual oddball task was employed. From electroencephalogram (EEG) recordings, event related potential (ERP) components were analyzed to observe attentional changes during the task. Our preliminary results with trichromatic participants exhibited difference in latency between colors, however, did not show any clear differences in amplitudes. 18:00-18:30 Color vision variations potentially influencing perceptual differences Although people tend to assume that what they perceive in color is exactly the same as what others do, large variations in human color vision from genetical and perceptual points of view suggest that the common belief is incorrect. At the same time, potential influences of these variations on color vision have not yet been fully understood. I will introduce recent approaches investigating how color-vision variations affect our behavior and impressions. 18:30-18:45 Poster session (1) Perceived (in)congruency of audiovisual stimuli using Gabor patches. (2) Suitable dwell time for eye-gaze-based object selection with eye tracking. We'll dine with the guest after the Seminar in a fish restaurant (izakaya). If you would like to join the dinner, we would be most grateful if you could register your name through the electric form <https://forms.gle/xBhuVbU7Ba3BqSr96>, or send an e-mail message to the organizer, Dr. Hiramatsu <chihiro[at]design.kyushu-u.ac.jp>, by 16 July 2019. |
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