大学のロゴ College of
Global Liberal Arts
日本語 English
Yamagishi Vision Dynamics Laboratory   

About us

Yamagishi Vision Dynamics Laboratory investigates mechanisms underlying human visual attention and emotion by using psychophysical methods as well as brain imaging techniques, such as fMRI and MEG.

Studies range from fundamental basic research to applied psychology. We hope that we can contribute to making the good future of the world through our studies.


what's new

【2022】
・Prof. Yamagishi will give a talk at Nikkei Business school. Please join us if you are interested in. Seminar on Leadership in a dynamically changing society
Joint seminar of Ritsumeikan Inamori Philosophy research center and Nikkei From September 29th, 2021 to October 27th, 2021 (every Thursday. 19:00-21:00) Realtime ONLINE (Japanese)
Prof. Yamgishi will talk about “Intrinsic motivation and well-being” on Oct. 13th Thursday.
To see more details and register, please visit here(Japanese)

・A paper on “Visual attention and consciousness” was published. [Feb. 2022] (Japanese)
Yamagishi, N (2022). Visual attention and consciousness. SEITAI NO KAGAKU. Vol.73(1): 23-27. DOI: https://doi.org/10.11477/mf.2425201459.

【2021】
・A paper on gratitude effects on academic motivation was accepted for publication in BMC Psychology [March, 2021].
Nawa N. E., Yamagishi, N. (2021). Enhanced Academic Motivation in University Students Following a Two week Online Gratitude Journal Intervention, BMC Psychology, Vol.9, No.1: 71.
Here is the LINK to the Press Release (EurekAlert!) of this study.

・A paper on emotional effects on visual search in the Virtual Reality environment was accepted for publication in the journal of VR society of Japan [January 8th, 2021]. (Japanese)
Sakai M., Yonami, R., Murakami, J., Mitsugami, I., Yamagishi, N. (2021). The effect of mood state on visual search times under VR environment. Transactions of the Virtual Reality Society of Japan. Vol 26, No1.

・A paper on psychological effects of short-term study abroad was accepted for publication in PLOS ONE [December 2021]
Yamanaka, T., Yamagishi, N., Nawa, N.E., Anderson S.J. (2021). Assessing changes in mood state in university students following short-term study abroad. PLOS ONE 16(2): e0261762. https://doi.org/10.1371/journal.pone.0261762.

・Prof. Yamagishi gave a talk at Nikkei Business school.
Seminar on Leadership in a dynamically changing society
Joint seminar of Ritsumeikan Inamori Philosophy research center and Nikkei from September 29th, 2021 (Wed.) to October 20th, 2021 (every Wed. 19:00-21:30)Realtime ONLINE (Japanese)
Prof. Yamgishi gave a talk on “Intrinsic motivation and well-being” on Oct. 13th.

【2020】
・Prof. Yamagishi started writing a blog that covers topics of Gratitude and her research interests. [September 21st, 2021] (Japanese)
please access here

Research on mechanisms underlying visual dynamics

1.Making an environment to provide useful information to users at appropriate time and place

As ubiquitous computing is becoming a central concern of everyday life, it is a very important issue to understand a user's internal status in order to provide them with useful information at the appropriate time and place. To determine the best time and place to provide information to users, we are developing a technique for predicting users' attentional status and readiness levels for a task by evaluating brain activity [Figure 1]. This technique enables us to get information carried by telecommunication devices very easily and naturally, and high task performance would be supported for everyone from young to elderly users.

Primary Goal
脳活動の推定に基づく適応的な環境知能の実現
Figure 1

2. Mechanisms underlying visual attention

Attentional status and readiness level largely affect human perception, performance and memory.

Series of our visual attention studies with psychophysical and brain imaging techniques revealed that, in the human early visual cortex, shifting attention towards an expected visual target resulted in a late-onset (600 ms postcue onset) depression of alpha activity (ERD: event-related de-synchronization) which persists until the appearance of the target [Figure 2].

The levels of ERD were correlated with the visual task performance [Figure 3].
These results indicate that the alpha de-synchronization in the early visual cortex has important roles of human visual shifting attention.
Shifting attention experiment
Time/frequency analysis
Event-related spectral perturbation (ERSP)
Correlations between ERSP and ACC
脳の画像
図2
図3
Figure 2
Figure 3

3. Human Emotion (happiness level) and visual attention

The effects of human emotion, such as happiness level, on the visual attention is investigated by using psychophysical methods and brain imaging techniques.

One approach to study this topic is to record participants’ emotional status in daily life, and participants conduct psychophysical tasks, by using their smartphones. To do this, we can investigate relationship between natural emotional changes and human visual task performance. Our study showed that when people were happy, people searched the target faster in the distractors [Figure 4].

Further, we conduct psychophysical experiments on this topic in the laboratory setting to test hypotheses, and brain imaging studies to reveal neural mechanisms underlying the relationship between human emotion and attention.

図4-1
図4-2
Figure 4


4. Gratitude and human motivation

One of human positive emotions, Gratitude, and motivation is investigated by WEB based interventions. Participants in the study are asked to write gratitude journal for a several weeks to elevate their gratitude levels. Some psychological statuses including academic/work motivations are asked before and after the intervention.

The results of the study revealed that a short intervention of the gratitude increased university students’ Academic Motivation (Figure 5).
We are hoping that we can develop the gratitude based educational system to improve motivations based on our study results.

図5
Figure 5


Grants obtained

2019-2022 Principal Investigator
JSPS KAKENHI Grant number 19H00635
Grant-in-Aid for Scientific Research (A)
Research title: ‘Detecting and healing mental disorder by using attentional function system’

2018-2019 Principal Investigator
2018 WASEDA University –NICT matching fund
Research title: Predicting mental disorder before symptoms appear by brain scientific approach.

2018-2019 Principal Investigator
RITSUMEIKAN University INAMORI PHILOSOPHY RESEARCH CENTER Research project Fund
Research title: Positive chain of gratitude - Psychological and neuro-scientific approach to understand it -

2018-2020 Co-investigator
2018 WASEDA University research fund
Research title: Preparation for a study on predicting mental disorder before symptoms appear.

2016-2017 Principal Investigator
RITSUMEIKAN University INAMORI PHILOSOPHY RESEARCH CENTER Research project Fund
Research title: What is ‘Appreciation what we have’ - Neuro-scientific approach to understand it -

2014-2017 Principal Investigator
JSPS KAKENHI Grant number 26540075
Grant-in-Aid for Challenging Exploratory Research
Research title: ‘Investigation of relationship between attentional training and happiness level’

2013-2016 Principal Investigator
JSPS KAKENHI Grant number 25280053
Grant-in-Aid for Scientific Research (B)
Research title: ‘Investigation of brain mechanisms underlying readiness levels for behavior tasks’

2009-2013 Principal Investigator
PRESTO (Precursory Research for Embryonic Science and Technology), Japan Science and Technology Agency (JST), ‘Information Environment and Humans’
Research title: ‘Towards providing useful information to users at the best time and place by predicting internal state from brain activities’

Members

Faculty
Professor Noriko Yamagishi

Researchers
Post-doctoral fellow Yasunaga Monno

Students
Accepted from 2022

Student staffs
Atsuya Hirano(Osaka University)
Haruho Umamichi(Ritsumeikan University)

Collaborators
Norberto Eiji Nawa(NICT CiNet)
Stephen J. Anderson(Aston University)
Rieko Osu(Waseda University)
Hiroaki Kumano(Waseda University)
Ikuhisa Mitsugami(Hiroshima City University)
Toru Maekawa(Hiroshima University)
Tsukasa Yamanaka(Ritsumeikan University)
Takuya Ibaraki(NTT data)

Call for participation

WEB online experiment
Planning now

Psychological experiment
Planning now

fMRI experiment
Planning now

Access

Ritsumeikan University
OIC campus


2-150 Iwakura-cho, Ibaraki, Osaka 567-8570 JAPAN
大学 アクセスマップ

Experimental Room
Room B403
(Ritsumeikan University, OIC campus, Building B 4th floor)

Office

Room A5314
(Ritsumeikan University, OIC campus, Building A 5th floor)

B403 A5314 椅子

Contact

Email
yamagisi (at) fc.ritsumei.ac.jp(change (at) to @)

Phone
0726-65-2731 (International +81-726-65-2731)

Office hour
by appointment