Presentation 2020-02-15
Peripersonal space during active and passive self-motion
Naoki Kuroda, Wataru Teramoto,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) A space immediately around the body, known as peripersonal space (PPS), plays an important role in our interactions with external environments. This space is represented by specific bi- or tri-modal neurons in the brain, so that strong multisensory interaction behaviorally occurs in this space. Several studies have shown that the range of PPS can expand in the direction of self-motion. However, little is known about which self-motion cues contribute to this PPS expansion during self-motion. Here, we investigate whether active and passive self-motion differentially affect PPS. Participants experienced illusory forward self-motion by large-field visual motion presented through a head-mounted display. They pedaled an exercise bike while observing the visual motion in an active condition, while they did not in a passive condition. During self-motion, a visual probe approached the participants from several distances. We defined PPS as the farthest distance that the visual probe facilitated tactile detection. The results revealed that the visual probe significantly facilitated the tactile detection at all distance condition regardless of the self-motion conditions, suggesting that PPS expand during self-motion. Moreover, the facilitation was larger for the active than passive conditions, suggesting that signals related to active self-motion such as (efference copy of) motor commands and proprioception can contribute to PPS expansion.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Peripersonal space / Visuotactile interaction / Self-motion perception / Vection / Virtual reality
Paper # HIP2019-85
Date of Issue 2020-02-08 (HIP)

Conference Information
Committee HIP / ASJ-H
Conference Date 2020/2/15(2days)
Place (in Japanese) (See Japanese page)
Place (in English) IT Souzou-kan Bldg. (Naha)
Topics (in Japanese) (See Japanese page)
Topics (in English)
Chair Miyuki Kamachi(Kogakuin Univ.) / 小澤 賢司(山梨大)
Vice Chair Shuichi Sakamoto(Tohoku Univ.) / Yuji Wada(Ritsumeikan Univ.) / 鵜木 祐史(北陸先端大)
Secretary Shuichi Sakamoto(NICT) / Yuji Wada(NTT) / 鵜木 祐史(Nagoya Univ.)
Assistant Atsushi Wada(NICT) / Hidetoshi Kanaya(Ritsumeikan Univ.) / Yuki Yamada(Kyushu Univ.)

Paper Information
Registration To Technical Committee on Human Information Processing / Auditory Research Meeting
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Peripersonal space during active and passive self-motion
Sub Title (in English)
Keyword(1) Peripersonal space
Keyword(2) Visuotactile interaction
Keyword(3) Self-motion perception
Keyword(4) Vection
Keyword(5) Virtual reality
1st Author's Name Naoki Kuroda
1st Author's Affiliation Kumamoto University(Kumamoto Univ.)
2nd Author's Name Wataru Teramoto
2nd Author's Affiliation Kumamoto University(Kumamoto Univ.)
Date 2020-02-15
Paper # HIP2019-85
Volume (vol) vol.119
Number (no) HIP-414
Page pp.pp.43-46(HIP),
#Pages 4
Date of Issue 2020-02-08 (HIP)