Results 31 to 40 of about 2,342,191 (355)

Optical coherence tomography in healthy human subjects in the setting of prolonged dark adaptation

open access: yesScientific Reports, 2023
Human studies have established that short periods of dark adaptation can induce outer retinal thinning and various band intensity changes that can be detected with Optical Coherence Tomography (OCT).
Erin H. Su   +2 more
doaj   +1 more source

Type II Opsins in the Eye, the Pineal Complex and the Skin of Xenopus laevis: Using Changes in Skin Pigmentation as a Readout of Visual and Circadian Activity

open access: yesFrontiers in Neuroanatomy, 2022
The eye, the pineal complex and the skin are important photosensitive organs. The African clawed frog, Xenopus laevis, senses light from the environment and adjusts skin color accordingly.
Gabriel E. Bertolesi   +4 more
doaj   +1 more source

Suboptimal eye movements for seeing fine details. [PDF]

open access: yes, 2018
Human eyes are never stable, even during attempts of maintaining gaze on a visual target. Considering transient response characteristics of retinal ganglion cells, a certain amount of motion of the eyes is required to efficiently encode information and ...
Agaoglu, Mehmet N   +4 more
core   +1 more source

Delayed dark adaptation in central serous chorioretinopathy

open access: yesAmerican Journal of Ophthalmology Case Reports, 2021
Purpose: To evaluate the effect of central serous chorioretinopathy (CSCR) on retinal function using dark adaptation in a human subject, and to follow it through resolution of the disease.
Archana Nigalye   +4 more
doaj   +1 more source

Adaptation of social and non-social cues to direction in adults with autism spectrum disorder and neurotypical adults with autistic traits

open access: yesDevelopmental Cognitive Neuroscience, 2018
Perceptual constancy strongly relies on adaptive gain control mechanisms, which shift perception as a function of recent sensory history. Here we examined the extent to which individual differences in magnitude of adaptation aftereffects for social and ...
Rebecca P. Lawson   +3 more
doaj   +1 more source

The effects of smooth pursuit adaptation on the gain of visuomotor transmission in monkeys

open access: yesFrontiers in Systems Neuroscience, 2013
Smooth pursuit eye movements are supported by visual-motor systems, where visual motion information is transformed into eye movement commands. Adaptation of the visuomotor systems for smooth pursuit is an important factor to maintain pursuit accuracy and
Seiji eOno, Seiji eOno
doaj   +1 more source

THE INFLUENCE OF LIGHT ADAPTATION ON SUBSEQUENT DARK ADAPTATION OF THE EYE [PDF]

open access: yesJournal of General Physiology, 1937
The course of dark adaptation of the human eye varies with the intensity used for the light adaptation which precedes it. Preadaptation to intensities below 200 photons is followed only by rod adaptation, while preadaptation to intensities above 4000 photons is followed first by cone adaptation and then by rod adaptation. With increasing
Charles Haig   +2 more
openaire   +3 more sources

Analog VLSI-Based Modeling of the Primate Oculomotor System [PDF]

open access: yes, 1998
One way to understand a neurobiological system is by building a simulacrum that replicates its behavior in real time using similar constraints. Analog very large-scale integrated (VLSI) electronic circuit technology provides such an enabling technology ...
Horiuchi, Timothy K., Koch, Christof
core   +3 more sources

Afterimages Reveal Interocular Transfer of Shape Adaptation

open access: yesi-Perception, 2011
An afterimage's shape changes systematically depending on the adapted shape. Adapting to circles produces polygonal afterimages, whereas adapting to hexagons sometimes produce circular afterimages.
Hiroyuki Ito
doaj   +1 more source

Long timescale fMRI neuronal adaptation effects in human amblyopic cortex.

open access: yesPLoS ONE, 2011
An investigation of long timescale (5 minutes) fMRI neuronal adaptation effects, based on retinotopic mapping and spatial frequency stimuli, is presented in this paper.
Xingfeng Li   +4 more
doaj   +1 more source

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