Cognitive neuroscience of mental concentration

• Project/Area Number: 24650135
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Single-year Grants
• Research Field: Cognitive science
• Research Institution: Kyoto University
• Principal Investigator: SAIKI Jun 京都大学, 人間・環境学研究科(研究院), 教授 (60283470)
• Project Period (FY): 2012-04-01 – 2014-03-31
• Project Status: Completed (Fiscal Year 2013)
• Budget Amount: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000); Fiscal Year 2013: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000); Fiscal Year 2012: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
• Keywords: 感覚・知覚・注意 / 精神集中 / 反応時間 / 瞑想 / 脳波 / 時間相関 / 注意 / 時系列 / 瞳孔径

Research Abstract

To understand the neural basis of mental concentration, we developed a behavior paradigm, and measured EEG during meditation, one type of flow state. We employed a feature search task, known to have relatively small variability in task difficulty across trials, and found that time series of reaction time data contains significant long-range temporal correlation. EEG data during meditation showed that instead of increasing long-range temporal correlation, temporal fluctuation of the correlation is reduced compared with the rest period, suggesting that meditation makes our internal state more stable.

Research Products

• [Journal Article] Activity in early visual areas predicts interindividual differences in binocular rivalry dynamics. (2014)
  • Author(s): Yamashiro, H., Yamamoto, H., Mano, H., Umeda M., Higuchi, T., & Saiki, J.
  • Journal Title: Journal of Neurophysiology Volume: 111 Issue: 6 Pages: 1090-1202
  • DOI: 10.1152/jn.00509.2013
  • NAID: 120005458271
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Multiple neural mechanisms for coloring words in synesthesia (2014)
  • Author(s): Yokoyama, T., Noguchi, Y., Kog a, H., Tachibana, R., Saiki, J., Kakigi, R., & Kite, S
  • Journal Title: Neurolmage Volume: (掲載確定) Pages: 360-371
  • DOI: 10.1016/j.neuroimage.2014.01.039
  • Peer Reviewed / Open Access
• [Journal Article] 視覚認知の心理学 (2014)
  • Author(s): 齋木 潤
  • Journal Title: Clinical Neuroscience Volume: 32 Pages: 140-143
• [Journal Article] Feature-Specific Encoding Flexibility in Visual Working Memory. (2013)
  • Author(s): Kondo, A. , & Saiki, J.
  • Journal Title: PLoS One Volume: 7 Issue: 12 Pages: 1-8
  • DOI: 10.1371/journal.pone.0050962
  • Peer Reviewed
• [Journal Article] Polymorphism in the CHRNA4 gene is associated with rapid scene categorization performance. (2013)
  • Author(s): Kikuno, Y., Matsunaga, T., & Saiki, J.
  • Journal Title: Attention Perception & Psychophysics Volume: 75 Issue: 7 Pages: 1427-1437
  • DOI: 10.3758/s13414-013-0486-1
  • Peer Reviewed
• [Journal Article] Calculation of the mean circle size does not circumvent the bottleneck of crowding. (2012)
  • Author(s): Banno, H., and Saiki, J.
  • Journal Title: Journal of Vision Volume: 12(11):13 Issue: 11 Pages: 1-15
  • DOI: 10.1167/12.11.13
  • NAID: 120005245019
  • Peer Reviewed
• [Journal Article] Characteristics of eye movements in 3-D object learning: Comparison between within-modal and cross-modal object recognition (2012)
  • Author(s): Ueda, Y., and Saiki, J.
  • Journal Title: Perception Volume: 41 Issue: 11 Pages: 1289-1298
  • DOI: 10.1068/p7257
  • Peer Reviewed
• [Presentation] Parallel learning of temporal order and sequencing of natural scenes based on unconscious/conscious processes : Evidence from visual statistical learning (2013)
  • Author(s): Otsuka S., Koch, C., Saiki, J. & Kawaguchi, J.
  • Organizer: The 54th Annual Meeting of The Psychonomic Society
  • Place of Presentation: Toronto, Canada
  • Year and Date: 2013-11-15
• [Presentation] Cultural differences in visual search with items defined by higher-order features (2013)
  • Author(s): Ueda, Y., Chen, R., Cramer, E., Rensink, R., & Saiki, J.
  • Organizer: The 54th of Annual Meeting of Psychonomic Society
  • Place of Presentation: Toronto, Canada
  • Year and Date: 2013-11-15
• [Presentation] Grapheme-Shitsukan synesthesia : Interaction of concurrent colour and shitsukan in synesthetic experiences (2013)
  • Author(s): Saiki, J., Koga, H., Banno, H., & Yamamoto, H
  • Organizer: 9th International Conference on Cognitive Science (ICCS 2013)
  • Place of Presentation: Kuching, Sarawak, Malaysia
  • Year and Date: 2013-08-29
• [Presentation] Cultural differences in visual search with culturally neutral items (2013)
  • Author(s): Saiki, J., Ueda, Y., Chen, R., Kopecky, J., Rensink, R., Meyer, D., & Kitayama, S.
  • Organizer: Vision Sciences Society 13th Annual Meeting
  • Place of Presentation: Naples, USA
  • Year and Date: 2013-05-15
• [Presentation] Task sets determine implicitly learned stimulus information in spatio-temporal contextual cueing (2013)
  • Author(s): Higuchi, Y., Ueda, Y., Ogawa, H., & Saiki, J.
  • Organizer: Vision Sciences Society 13th Annual Meeting
  • Place of Presentation: Naples, FL. USA
  • Year and Date: 2013-05-11
• [Presentation] Functional differences among EEG indices of visual working memory load in a dimension selective memory task (2012)
  • Author(s): Saiki, J. & Li, Q.
  • Organizer: Society for Neuroscience Annual Meeting
  • Place of Presentation: New Orleans, LO. USA
  • Year and Date: 2012-10-17
• [Presentation] Dynamic control of representations in visual working memory (2012)
  • Author(s): Saiki, J.
  • Organizer: International Congress of Psychology
  • Place of Presentation: Cape Town, South Africa
  • Year and Date: 2012-07-24
• [Presentation] Maintenance of feature conjunctions in visual working memory : Evidence from response time analysis and event-related potential (2012)
  • Author(s): Saiki, J. & Koga, H.
  • Organizer: Vision Sciences Society 12th Annual Meeting
  • Place of Presentation: Naples, FL. USA
  • Year and Date: 2012-05-16
• [Presentation] Object identities facilitate response to a target in spatio-temporal contextual cuing (2012)
  • Author(s): Higuchi, Y., Ogawa, H., Ueda, Y., and Saiki, J.
  • Organizer: Vision Sciences Society 12th Annual Meeting
  • Place of Presentation: Naples, FL. USA
  • Year and Date: 2012-05-13
• [Presentation] Object identities facilitate response to a target in spatio-temporal contextual cuing. (2012)
  • Author(s): Higuchi, Y., Ogawa, H., Ueda, Y., and Saiki, J.
  • Organizer: Vision Sciences Society Annual Meeting
  • Place of Presentation: Naples Fl. USA
• [Presentation] CHRNA4遺伝子多型が視空間的注意に与える効果 (2012)
  • Author(s): 菊野雄一郎・松永哲郎・齋木潤
  • Organizer: 日本心理学会第76回大会
  • Place of Presentation: 川崎市
• [Presentation] 遺伝子多型解析を用いたアセチルコリンと瞬間シーンカテゴリ認識の関連の検討 (2012)
  • Author(s): 菊野雄一郎・松永哲郎・齋木潤
  • Organizer: 日本基礎心理学会第31回大会
  • Place of Presentation: 福岡市
• [Presentation] 系列の潜在学習における位置とアイデンティティの役割. (2012)
  • Author(s): 樋口洋子, 小川洋和, 上田祥行, 齋木潤
  • Organizer: 日本心理学会第76回大会
  • Place of Presentation: 川崎市
• [Presentation] Task sets determine implicitly learned stimulus information in spatio-temporal contextual cueing.
  • Author(s): Higuchi, Y., Ueda, Y., Ogawa, H., & Saiki, J.,
  • Organizer: Vision Sciences Society 13th Annual Meeting
  • Place of Presentation: Naples, FL. USA
• [Presentation] Cultural differences in visual search with culturally neutral items.
  • Author(s): Saiki, J., Ueda, Y., Chen, R., Kopecky, J., Rensink, R., Meyer, D., & Kitayama, S.
  • Organizer: Vision Sciences Society 13th Annual Meeting
  • Place of Presentation: Naples, FL. USA
• [Presentation] Parallel learning of temporal order and sequencing of natural scenes based on unconscious/conscious processes: Evidence from visual statistical learning.
  • Author(s): Otsuka, S., Koch, C., Saiki, J. & Kawaguchi, J.
  • Organizer: The 54th Annual Meeting of The Psychonomic Society
  • Place of Presentation: Toronto, Canada
• [Presentation] Cultural differences in visual search with items defined by higher-order features.
  • Author(s): Ueda, Y., Chen, R., Cramer, E., Rensink, R., & Saiki, J.
  • Organizer: The 54th Annual Meeting of The Psychonomic Society
  • Place of Presentation: Toronto, Canada
• [Presentation] Task-related information is selectively learned in spatiotemporal contextual cueing.
  • Author(s): Higuchi, Y., Ueda, Y., Ogawa, H., & Saiki, J.
  • Organizer: 日本認知心理学会第11回大会
  • Place of Presentation: 茨城県つくば市
• [Presentation] 視覚性ワーキングメモリの容量と精度：測定と理論.
  • Author(s): 齋木 潤
  • Organizer: 日本認知心理学会第11回大会
  • Place of Presentation: 茨城県つくば市
  • Invited
• [Presentation] 統計的規則性の学習と潜在/顕在過程の関連性―RSVP課題を用いた検討―
  • Author(s): 大塚幸生・Christof Koch・齋木 潤・川口 潤
  • Organizer: 日本心理学会第77回大会
  • Place of Presentation: 北海道札幌市
• [Presentation] 注意課題の難易度がCHRNA4遺伝子多型効果に与える影響
  • Author(s): 菊野雄一郎・松永哲郎・齋木潤
  • Organizer: 日本心理学会第77回大会
  • Place of Presentation: 北海道札幌市
• [Presentation] 文脈手がかり効果の生起における眼球運動の役割.
  • Author(s): 樋口洋子・齋木 潤
  • Organizer: 日本心理学会第77回大会
  • Place of Presentation: 北海道札幌市
• [Presentation] Dynamic control of representations in visual working memory
  • Author(s): Saiki J.
  • Organizer: International Congress of Psychology
  • Place of Presentation: Cape Town, South Africa
  • Invited
• [Presentation] Maintenance of feature conjunctions in visual working memory: Evidence from response time analysis and event-related potential
  • Author(s): Saiki J., and Koga H.
  • Organizer: Vision Sciences Society Annual Meeting
  • Place of Presentation: Naples Fl. USA
• [Presentation] Functional differences among EEG indices of visual working memory load in a dimension selective memory task
  • Author(s): Saiki J., and Li Q.
  • Organizer: Society for Neuroscience Annual Meeting
  • Place of Presentation: New Orleans LO. USA
• [Book] 視覚認知の心理学 (2014)
  • Author(s): 齋木潤, Clinical Neuroscience (分担執筆)
  • Publisher: 中外医学社
• [Book] 誠信心理学辞典 (2014)
  • Author(s): 齋木 潤（分担執筆）
  • Total Pages: 10
  • Publisher: 誠信書房
• [Remarks] 研究室ホームページ
  • URL: http://www.cv.jinkan.kyoto-u.ac.jp/
• [Remarks] 研究室ホームページ
  • URL: http://www.cv.jinkan.kyoto-u.ac.jp/
• [Remarks] 研究室ホームページ
  • URL: http://www.cv.jinkan.kyoto-u.ac.jp/