Most of these units (i.e., cortical cells plus connections) could be excited by a light stimulus falling on either eye, although there was usually dominance of one eye, in the sense that its response was greater; when both eyes were stimulated together, the effects summated. In general, t...
We established the Navarro wide-angle eye model in Zemax software to further validate our results, which suggested high consistency between the two. The isoplanatic patch as a function of wavelength was obtained within the range of visible to near-infrared, which can be expressed as: theta = ...
When combining the object's Normal map with the Detail Normal map, make sure that you use the Material Function BlendAngleCorrectedNormals to combine as you will yield better results. It is also very useful to expose parameters to adjust the mixing of the Normal maps. You can take the deta...
It assumes that the eyes remain fixed in the head (no eye movements). This was true for all our experimental conditions, so there was no conflict with the lack of eye rotation reported by the oculomotor system. Furthermore, curvilinear motion assumes en-bloc rotation of the body/head/eyes,...
Because of the binocular nature of human vision, most eye movements are co- ordinated between the two eyes. Normal, relaxed eyes will both fixate on the same distant object with the optical axes of the two eyes roughly parallel. As the eyes accommodate for nearer objects, the angle of ...
s eye position moved >1.5 deg away from the center of the fixation cross for >300 ms. During training and before data collection, observers were excluded from further participation if we were unable to calibrate the eye tracker to an error of <1 deg of visual angle or if their ...
(MPRAGE, repetition time TR = 2.2 s, inversion time TI = 1.05 s, echo time TE = 2.82 ms, FOV = 192 × 192 × 176 mm, flip angle = 7°, total acquisition time = 171 s) to permit placement of the visual cortex voxel-of-interest (VOI). A ...
logMAR, logarithm of the minimum angle of resolution; OD, right eye; OS, left eye; plano, emmetropia; RDS, Randot stereoacuity; VA, visual acuity. Statistical analysis Fourteen subjects with normal vision completed all psychophysical and MRS experiments. Creatine was used as a reference ...
Moreover, in the human eye unlike in animal eyes, the intrinsically dichroic cone chromophores themselves are randomly-aligned in the cone disk membranes and so lead to a spatially unresolved response of the retina whatever the direction of light polarization. We suggest here that the phenomenon ...
(Fig.4). Second, it is conceivable that fearful facial expressions caused pupil dilation, which would in turn, allow more photons to enter the eye, resulting in a global response in visual cortex. However, the percentage change in pupil size needed to effect such a large change in cortical...