saccadic eye movement

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衝動性眼球運動

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出典(authority):フリー百科事典『ウィキペディア(Wikipedia)』「2015/12/10 21:38:52」(JST)

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英文文献

  • Blinking and driving: the influence of saccades and cognitive workload.
  • Cardona G, Quevedo N.Author information Department of Optics and Optometry, University Vision Centre Research Group, Terrassa School of Optics and Optometry, Technical University of Catalonia , Catalonia , Spain.AbstractAbstract Purpose: The aim of this study was to investigate the joint influence of cognitive demands and large amplitude saccades on spontaneous blink rate. Materials and Methods: Twenty healthy volunteers were enrolled in the study and instructed to follow a 60-minute real-life driving circuit while a video camera recorded ocular movements and blinking. Five different complexity levels were predefined in terms of driving difficulty and traffic intensity, that is, cognitive workload. Five one-minute segments were selected for each complexity level in each driving trial, whereupon spontaneous blink rate and horizontal saccades were monitored. Saccades were classified according to their amplitude and blink-saccade pairs were recorded. Results: Albeit showing a high inter-subject variability, spontaneous blink rate and saccades were consistent within the same complexity level. At different complexity levels, no statistically significant difference in spontaneous blink rate was encountered, with an average of 20.3 ± 1.6 blinks/minute (mean ± SD). The number of large amplitude gaze shifts increased with the level of complexity (F = 15.403; p < 0.001). An average of 87.5% of large amplitude saccades were accompanied by a blink, and this percentage was similar for all complexity levels, that is, the number of blink-saccade pairs increased at higher complexity levels (F = 20.597; p < 0.001). Conclusions: In a complex, dynamic visual setting, spontaneous blinking accompanying large amplitude saccades may help in counteracting the reduction in blink rate associated with high cognitive demands.
  • Current eye research.Curr Eye Res.2014 Mar;39(3):239-44. doi: 10.3109/02713683.2013.841256. Epub 2013 Oct 21.
  • Abstract Purpose: The aim of this study was to investigate the joint influence of cognitive demands and large amplitude saccades on spontaneous blink rate. Materials and Methods: Twenty healthy volunteers were enrolled in the study and instructed to follow a 60-minute real-life driving circuit while
  • PMID 24143937
  • The subthalamic nucleus influences visuospatial attention in humans.
  • Schmalbach B, Günther V, Raethjen J, Wailke S, Falk D, Deuschl G, Witt K.Author information Christian Albrecht University, Kiel, Germany.AbstractSpatial attention is a lateralized feature of the human brain. Whereas the role of cortical areas of the nondominant hemisphere on spatial attention has been investigated in detail, the impact of the BG, and more precisely the subthalamic nucleus, on signs and symptoms of spatial attention is not well understood. Here we used unilateral deep brain stimulation of the subthalamic nucleus to reversibly, specifically, and intraindividually modify the neuronal BG outflow and its consequences on signs and symptoms of visuospatial attention in patients suffering from Parkinson disease. We tested 13 patients with Parkinson disease and chronic deep brain stimulation in three stimulation settings: unilateral right and left deep brain stimulation of the subthalamic nucleus as well as bilateral deep brain stimulation of the subthalamic nucleus. In all three stimulation settings, the patients viewed a set of pictures while an eye-tracker system recorded eye movements. During the exploration of the visual stimuli, we analyzed the time spent in each visual hemispace, as well as the number, duration, amplitude, peak velocity, acceleration peak, and speed of saccades. In the unilateral left-sided stimulation setting, patients show a shorter ipsilateral exploration time of the extrapersonal space, whereas number, duration, and speed of saccades did not differ between the different stimulation settings. These results demonstrated reduced visuospatial attention toward the side contralateral to the right subthalamic nucleus that was not being stimulated in a unilateral left-sided stimulation. Turning on the right stimulator, the reduced visuospatial attention vanished. These results support the involvement of the subthalamic nucleus in modulating spatial attention. Therefore, the subthalamic nucleus is part of the subcortical network that subserves spatial attention.
  • Journal of cognitive neuroscience.J Cogn Neurosci.2014 Mar;26(3):543-50. doi: 10.1162/jocn_a_00502. Epub 2013 Oct 21.
  • Spatial attention is a lateralized feature of the human brain. Whereas the role of cortical areas of the nondominant hemisphere on spatial attention has been investigated in detail, the impact of the BG, and more precisely the subthalamic nucleus, on signs and symptoms of spatial attention is not we
  • PMID 24144249
  • Two-dimensional spatial tuning for saccades in human parieto-frontal cortex.
  • Leoné FT1, Toni I2, Medendorp WP2.Author information 1Radboud University Nijmegen, Donders Institute for Brain, Cognition and Behavior, 6525 HR Nijmegen, The Netherlands. Electronic address: f.leone@donders.ru.nl.2Radboud University Nijmegen, Donders Institute for Brain, Cognition and Behavior, 6525 HR Nijmegen, The Netherlands.AbstractSaccades in the frontoparallel plane are targeted at two-dimensional (2D) locations, defined by direction and amplitude. Macaque neurophysiology has shown that these dimensions are jointly represented in single intraparietal sulcus (IPS) and frontal eye fields (FEF) neurons, constituting multiple maps of 2D saccade space. Human fMRI has shown that the direction of the saccade is topographically represented across large neuronal groups. However, it is unknown whether both direction and amplitude are separable dimensions at the voxel level and whether these tuning variables are organized in large-scale topographic maps. We used fMRI to address these issues in subjects performing an instructed-delay saccade task to 18 locations (6 directions, 3 amplitudes). Singular value decomposition was applied to the corresponding response field of each voxel, providing an index of the separability into direction and amplitude tuning. Our findings show that saccade location tuning is composed of separable direction and amplitude components within voxels across the parieto-frontal network. In both IPS and FEF there were amplitude gradients and reversals of direction tuning across voxels, with a medio-lateral gradient of decreasing saccade amplitude along the IPS. These findings reveal the 2D cortical organization of saccade space within and across voxels and hold great potential for the study of other sensorimotor systems.
  • NeuroImage.Neuroimage.2014 Feb 15;87:476-89. doi: 10.1016/j.neuroimage.2013.09.067. Epub 2013 Oct 4.
  • Saccades in the frontoparallel plane are targeted at two-dimensional (2D) locations, defined by direction and amplitude. Macaque neurophysiology has shown that these dimensions are jointly represented in single intraparietal sulcus (IPS) and frontal eye fields (FEF) neurons, constituting multiple ma
  • PMID 24099846

和文文献

  • 車の走行映像提示中の閉眼時間とサッカードに基づく入眠予兆検出(生体工学)
  • 疋田 真一,板岡 毅,小野 貴彦,小林 康秀,齊藤 充行
  • 電子情報通信学会論文誌. D, 情報・システム J96-D(4), 1058-1067, 2013-04-01
  • 実時間で入眠予兆を検出するため,高速道路を走行する映像を提示したときの閉眼時間とサッカードの特性及び視覚刺激に対する反応時間について調べた.その結果,視覚刺激に対する反応時間のパフォーマンス低下前に過去30秒間の累積閉眼時間は増加すること,サッカードの平均ピーク速度は閉眼時間の増加に先行して減少傾向を示すことが分かった.10秒間隔で計算される平均ピーク速度の最小値の時間推移から覚醒水準評価を試みた …
  • NAID 110009596354
  • 車の走行映像提示中の閉眼時間とサッカードに基づく入眠予兆検出
  • 疋田 真一,板岡 毅,小野 貴彦 [他]
  • 電子情報通信学会論文誌. D, 情報・システム 96(4), 1058-1067, 2013-04
  • NAID 40019672791
  • バレーボールのスパイクコース判断に関わるレシーバーの視覚探索ストラテジ
  • 武澤 実穂,星野 聡子
  • 奈良女子大学スポーツ科学研究 15, 47-58, 2013-03-31
  • Eye movements and the time they need to decide wererecorded.As a result, subjects divided into 4 groups according to characteristic of eye movements pattern asdeciding. … First group is using saccadic eye movements. … Second is using combination subordinate eyemovements with saccadic eye movements. … Third is using irregular eye movements. …
  • NAID 110009577303

関連リンク

forum Join the Word of the Day Mailing List For webmasters TheFreeDictionary Google Bing? Word / Article Starts with Ends with Text ... saccadic eye movement [sakad′ik] an extremely fast voluntary movement of the eyes, allowing ...
The Gap Effect Saslow (Saslow, 1967) first reported an important result showing that latency could be substantially affected by visual events at the start location for the eye movement. He recorded latencies in the standard situation ...

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 Saccadic Eye Movements Suggest ForEOG Saccadic Eye Movement Data control of saccadic eye movements ian law saccadic eye movement a functional148 Eye Movements saccadic eye movement versus central


★リンクテーブル★
リンク元saccade」「衝動性眼球運動」「眼球サッケード
関連記事movement」「eye」「saccadic」「eyed」「e

saccade」

  [★] サッケードサッカード断続性運動衝動性運動

saccadic eye movement

WordNet   license wordnet

「a rapid, jerky movement of the eyes between positions of rest」


衝動性眼球運動」

  [★]

saccadic eye movement
サッケード saccade
急速眼球運動、サッケード運動


  • 視点の移動に伴う眼球の急速な運動
  • 毎秒500度以上の眼球運動



眼球サッケード」

  [★]

saccadic eye movement
サッケード


movement」

  [★]

  • n.
exercisekinesislocomotelocomotivemigratemotilitymotionmotormoverunshifttransfertranslocatetravel


WordNet   license wordnet

「the act of changing the location of something; "the movement of cargo onto the vessel"」

WordNet   license wordnet

「the driving and regulating parts of a mechanism (as of a watch or clock); "it was an expensive watch with a diamond movement"」

WordNet   license wordnet

「a natural event that involves a change in the position or location of something」
motion

WordNet   license wordnet

「a group of people with a common ideology who try together to achieve certain general goals; "he was a charter member of the movement"; "politicians have to respect a mass movement"; "he led the national liberation front"」
social movement, front

WordNet   license wordnet

「a major self-contained part of a symphony or sonata; "the second movement is slow and melodic"」

PrepTutorEJDIC   license prepejdic

「〈U〉(…の)『運動』,『動き』;移動《+『of』+『名』》 / 〈C〉動作,身振り / 〈C〉《複数形で》行動,活動 / 〈C〉(…に向かう)(事熊の)成り行き,動向《+『toward』+『名』》 / 〈C〉(目標を達成するための一群の人たちの)運動 / 〈C〉(賛団の)移動,移住;(人口の)異動《+『of』+『名』》 / 〈C〉楽章 / 〈C〉(時計などの)機械装置,動く仕掛け」


eye」

  [★]

WordNet   license wordnet

「look at」
eyeball

WordNet   license wordnet

「a small hole or loop (as in a needle); "the thread wouldn''t go through the eye"」

WordNet   license wordnet

「the organ of sight」
oculus, optic

WordNet   license wordnet

「attention to what is seen; "he tried to catch her eye"」

WordNet   license wordnet

「good discernment (either visually or as if visually); "she has an eye for fresh talent"; "he has an artist''s eye"」

PrepTutorEJDIC   license prepejdic

「〈C〉(人・動物の器官としての)『目』 / 〈C〉(まぶた・まつ毛・まゆ毛などを含めて,外側からみえる)『目』,目の周り / 〈C〉(目の)虹彩 / 〈C〉『視力』,視覚 / 〈C〉《単数形で》『視線』,まなざし / 〈C〉《しばしば複数形で》警戒(観察,監視)の目 / 〈C〉《通例単数形で》(…に対する)鑑識眼,物を見る目,(…を)見分ける力《+『for』+『名』》 / 〈C〉《しばしば複数形で》物の見方;観点 / 〈C〉目に似たようなもの(じゃがいもの芽・クジャクの羽の眼状の点など) / 〈C〉針の目,めど / 〈C〉(かぎ・ホックの)受け / 〈C〉台風の目 / (好奇・疑いなどの目で)…‘を'じろじろ見る,注意して見る」


saccadic」

  [★]

  • adj.
  • 断続的な、衝動性の
impulsivityintermittentintermittently

WordNet   license wordnet

「of or related to the rapid movement of the eyes between points of fixation」


eyed」

  [★]

WordNet   license wordnet

「having an eye or eyes or eyelike feature especially as specified; often used in combination; "a peacock''s eyed feathers"; "red-eyed"」


e」

  [★]

WordNet   license wordnet

「the base of the natural system of logarithms; approximately equal to 2.718282...」




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