Zobrazeno 1 - 10
of 110
pro vyhledávání: '"Ziad M. Hafed"'
Autor:
Amarender R. Bogadhi, Ziad M. Hafed
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-15 (2023)
Abstract Primate superior colliculus (SC) neurons exhibit visual feature tuning properties and are implicated in a subcortical network hypothesized to mediate fast threat and/or conspecific detection. However, the mechanisms through which SC neurons
Externí odkaz:
https://doaj.org/article/c88c1c611b6d4a1480e06c43f4d5e357
Publikováno v:
Communications Biology, Vol 5, Iss 1, Pp 1-14 (2022)
Using two different comparisons of varying saccade types, a systematic analysis of saccade-related activity in superior colliculus (SC) neurons demonstrates that SC motor bursts do not dictate the kinematics of rapid eye movements.
Externí odkaz:
https://doaj.org/article/cd121746107c44e1aa486eeb8bfbeba8
Autor:
Saad Idrees, Matthias-Philipp Baumann, Maria M. Korympidou, Timm Schubert, Alexandra Kling, Katrin Franke, Ziad M. Hafed, Felix Franke, Thomas A. Münch
Publikováno v:
Communications Biology, Vol 5, Iss 1, Pp 1-23 (2022)
Sequential light stimulation reduces the sensitivity of retinal ganglion cells via three different mechanisms which differentially affect ON and OFF cells.
Externí odkaz:
https://doaj.org/article/51f978d2affc41cc8e3349a9c0dd9089
Publikováno v:
Nature Communications, Vol 11, Iss 1, Pp 1-19 (2020)
Saccadic suppression is frequently attributed to active suppressive signals derived from eye movement commands. Here, the authors show that visual-only mechanisms starting in the retina can account for perceptual saccadic suppression properties witho
Externí odkaz:
https://doaj.org/article/aa9d2778e2eb4abaac07e728208aa819
Autor:
Konstantin F. Willeke, Xiaoguang Tian, Antimo Buonocore, Joachim Bellet, Araceli Ramirez-Cardenas, Ziad M. Hafed
Publikováno v:
Nature Communications, Vol 10, Iss 1, Pp 1-14 (2019)
Microsaccades are small-amplitude, fixational eye movements that are largely thought to be involuntary. Here, the authors demonstrate that monkeys (and humans) can be easily trained to respond to a remembered target location with a volitional microsa
Externí odkaz:
https://doaj.org/article/b7f1766c6c954d71b1f544ea91784326
Publikováno v:
Journal of Eye Movement Research, Vol 14, Iss 3 (2021)
We describe a high-performance, pupil-based binocular eye tracker that approaches the performance of a well-established commercial system, but at a fraction of the cost. The eye tracker is built from standard hardware components, and its software (wr
Externí odkaz:
https://doaj.org/article/4e7b7f8725dc4891acebd7eeeca5684e
Publikováno v:
Frontiers in Neural Circuits, Vol 15 (2021)
Visual selection in primates is intricately linked to eye movements, which are generated by a network of cortical and subcortical neural circuits. When visual selection is performed covertly, without foveating eye movements toward the selected target
Externí odkaz:
https://doaj.org/article/92ce4b663ca746079b30af0ec15b9c26
Publikováno v:
Nature Communications, Vol 9, Iss 1, Pp 1-13 (2018)
In primates, the superior colliculus (SC) contributes to rapid visual exploration with saccades. Here the authors show that the superior colliculus preferentially represents low spatial frequencies, which are the most prevalent in natural scenes.
Externí odkaz:
https://doaj.org/article/7f1864c2069448739aa326425ed9ee09
Autor:
Chih-Yang Chen, Ziad M. Hafed
Publikováno v:
Frontiers in Neural Circuits, Vol 12 (2018)
The primate superior colliculus is traditionally studied from the perspectives of gaze control, target selection, and selective attention. However, this structure is also visually responsive, and it is the primary visual structure in several species.
Externí odkaz:
https://doaj.org/article/c3b001ed232e4353a0514fd3f89b8eb5
Publikováno v:
Frontiers in Systems Neuroscience, Vol 10 (2016)
Microsaccades exhibit systematic oscillations in direction after spatial cueing, and these oscillations correlate with facilitatory and inhibitory changes in behavioral performance in the same tasks. However, independent of cueing, facilitatory and i
Externí odkaz:
https://doaj.org/article/b539f26a4c50487f9299e3403ecd126d