Article
Neurosciences
Grace F. DiRisio, Yongsoo Ra, Yinghui Qiu, Akiyuki Anzai, Gregory C. DeAngelis
Summary: Smooth eye movements are essential for natural visual processes, and they can be guided by both visual cues and extraretinal signals. This study focuses on how the brain processes and integrates these signals during smooth pursuit eye movements. The researchers investigate the responses of neurons in the MSTd area of rhesus monkeys and find that most neurons have preferences for the direction of eye rotation based on both visual and extraretinal signals. This suggests that area MSTd plays a crucial role in integrating these signals and representing the velocity of smooth eye movements.
JOURNAL OF NEUROSCIENCE
(2023)
Article
Neurosciences
Stefan Dowiasch, Marius Blanke, Jonas Knoell, Frank Bremmer
Summary: Previous studies have shown that eye movements can cause errors in the localization of flashed stimuli. This study examined flash localization during open-loop pursuit and found that the perceived flash locations were shifted in the direction of the eye movement. The error pattern was similar to that observed during smooth pursuit eye movements and the slow phase of optokinetic nystagmus.
FRONTIERS IN NEUROSCIENCE
(2023)
Article
Neurosciences
Huixi Dou, Huan Wang, Sainan Liu, Jun Huang, Zuxiang Liu, Tiangang Zhou, Yan Yang
Summary: This study reveals that monkeys exhibit a bias towards tracking the motion direction of a target with a hole, and this target is assigned a higher weight for vector computation compared to other form properties.
NEUROSCIENCE BULLETIN
(2023)
Article
Neurosciences
Alexander Goettker, Karl R. Gegenfurtner
Summary: The close relationship between eye movements and visual processing has led to recent studies focusing on interactions and shared signals between saccades and pursuit eye movements, highlighting multiple interactions and synergies in oculomotor control and visual perception.
Article
Neurosciences
Melissa Hunfalvay, Nicholas P. Murray, Revathy Mani, Frederick Robert Carrick
Summary: This study found significant deficits in fixation, saccades, and SPEM in the TBI group compared to the non-TBI group, as assessed by eye tracking tests. Eye tracking technology can effectively differentiate individuals with and without TBI based on oculomotor functions.
Article
Neurosciences
Matan Cain, Yehudit Botschko, Mati Joshua
Summary: This study challenges the traditional view that motor adaptation is solely driven by trial-and-error process, and suggests that errors may not be necessary for motor learning. The results indicate the presence of other mechanisms that can drive learning without actual movement.
Article
Neurosciences
Christian Quaia, Incheol Kang, Bruce G. Cumming
Summary: Direction selective neurons in macaque primary visual cortex are narrowly tuned for orientation, but are affected by the aperture problem. In the middle temporal (MT) area, some cells are able to solve this problem and respond to pattern motion direction. This study shows that a pattern motion signal is present at the population level, revealing the diversity of single-cell responses.
JOURNAL OF NEUROSCIENCE
(2022)
Article
Neurosciences
David Souto, Jennifer Sudkamp, Kyle Nacilla, Mateusz Bocian
Summary: Research has found a strong correlation between pursuit eye movements and velocity oscillations of the hip during cyclical movements. This suggests that there is additional information beyond the target point that contributes to the prediction of hip kinematics.
HUMAN MOVEMENT SCIENCE
(2023)
Article
Multidisciplinary Sciences
Yanqun Huang, Yifan Dong, Zhaojun Jiang, Peng Zhang, Jutao Li, Junyu Yang
Summary: This study examines how text direction (horizontal and vertical) and length (long and short) affect Chinese reading performance. The study involved 68 university students aged 19-29 who read articles and their reading times, recall ability, and task load were measured. The results indicate that horizontal text is read faster and has better memory effects for long texts compared to vertical text. However, the effect of text direction on memory for short texts was not significant. Additionally, horizontal text demands less mental, physical, and temporal load compared to vertical text. These findings enhance understanding of text direction's impact, provide valuable suggestions for Chinese typography, and improve reading outcomes for readers.
SCIENTIFIC REPORTS
(2023)
Article
Psychology, Biological
Takeshi Miyamoto, Kenichiro Miura, Tomohiro Kizuka, Seiji Ono
Summary: The study found that smooth pursuit could adapt to theta motion even without adaptive changes throughout the process. The initial acceleration in post-adaptation trials increased significantly compared to pre-adaptation trials, indicating successful adaptation to the challenge of opposite retinal slip.
PHYSIOLOGY & BEHAVIOR
(2021)
Article
Neurosciences
Takeshi Miyamoto, Kenichiro Miura, Tomohiro Kizuka, Seiji Ono
Summary: The study found that the onset times of predictive eye deceleration during pursuit termination are consistent regardless of target velocity, controlled by temporal estimation. Additionally, an unexpected offset of the target results in delays in the onset of eye deceleration, although it does not affect the total time for completion of pursuit termination.
Article
Ophthalmology
Zhenlan Jin, Ruie Gou, Junjun Zhang, Ling Li
Summary: The study found that in low load condition, TMS of the frontal pursuit area had no effect on both pursuit and letter detection tasks, while in high load condition, TMS reduced pursuit gain but tended to increase letter detection accuracy. Additionally, individual's FPA TMS effect on pursuit gain was significantly correlated with that on letter detection accuracy.
Article
Chemistry, Multidisciplinary
Shunya Tatara, Haruo Toda, Fumiatsu Maeda, Tomoya Handa
Summary: Smooth pursuit eye movements and saccadic eye movements play a vital role in precise vision. This study developed an all-in-one eye-movement-measuring device that can present visual stimuli, record eye positions, and evaluate eye movements. The device showed accurate measurements of eye movements, as indicated by the results of the study involving 16 participants. The device has potential clinical applications for easily and objectively evaluating eye movements.
APPLIED SCIENCES-BASEL
(2023)
Article
Psychology, Experimental
Rebekka Schroder, Philine Margarete Baumert, Ulrich Ettinger
Summary: The study found that pursuing a target at higher speeds with a background stimulus resulted in significantly reduced SPEM performance, showing good test-retest reliability. On the other hand, slower target speeds without background stimuli showed lower reliability. The effects of target velocity and background stimuli on SPEM performance demonstrated good to excellent reliabilities.
Article
Nutrition & Dietetics
Keisuke Yoshida, Osamu Sakai, Tomoo Honda, Tomio Kikuya, Ryuji Takeda, Akiyoshi Sawabe, Masamaru Inaba, Chieko Koike
Summary: This study aimed to test whether a supplement containing astaxanthin, lutein, and zeaxanthin could prevent the impairment of eye-hand coordination and smooth-pursuit eye movement caused by visual display terminal (VDT) operation. The results showed that the consumption of the supplement mitigated the decline of eye-hand coordination after VDT operation.