2015 年 5 月の行事予定
The 21st Perceptual Frontier Seminar: At the crossroads of communication
Date and time: Wednesday, 13 May 2015, from 17:00 to 19:00
1. Personal space and the prediction of other people's reachable distance
"Personal space" is the popular concept in the field of Environmental Psychology about interpersonal distance, which is a form of non-verbal communications. There are many studies on personal space from observing various interpersonal conditions, and many parameters such as body direction, gender, age, posture, etc. were proposed. However, the simpler explanation based on the perception of other people should be more practical in designing spaces.
2. An acoustic analysis of primate vocalization (Student session)
The purpose of the study was to analyze primate vocalizations in terms of spectral fluctuations. Natural speech of gibbons, chimpanzees, and human infants were recorded. First, the correlations between the power fluctuations of the 1/3 octave-band outputs represented by factor analysis were observed in order to see how the bands should be connected to each other. Next, Euclidean distance between each pair of primates was calculated, based on the correlation matrix of every frequency band in primate vocalizations. The results showed the possibility that dissimilarity of primates voice are closely related to the phylogenetic and developmental processes.
3. Three aspects of public speaking with competent speakers: speech pauses, head movements, and lexical choices
The present study explored the characteristics of a good public speech performance quantitatively as a first step to establish objective indexes for teaching and learning public-speaking performance. The video recordings of the commencement speech delivered by native English speakers during the graduation ceremonies at different universities were obtained from the official websites. Phonological aspects and gestures, focusing on speech pauses, head movements, and lexical choices were analyzed. The results will be discussed in this talk.
4. Japanese and English difference on face-to-face speech perception
We demonstrate dynamic processes of native English and Japanese speakers in terms of event-related brain potentials, eye-tracking, and response times for audiovisual and audio-only speech perception. These results clearly indicate the impact of language on multisensory speech processing, suggesting that different types of language experiences develop different neural systems for audiovisual speech perception.