Vision out of the corner of the eye

Abstract

The margin of the temporal visual field lies more than 90° from the line of sight and is critical for detecting incoming threats and for balance and locomotive control. We show (i) contrast sensitivity beyond 70° is higher for moving stimuli than for stationary, and in the outermost region, only moving stimuli are visible; (ii) sensitivity is highest for motion in directions near the vertical and horizontal axes and is higher for forward than for backward directions; (iii) the former anisotropy arises early in the visual pathway; (iv) thresholds for discriminating direction are lowest for upward and downward motion.

Representation of central and peripheral vision in the primate cerebral cortex: Insights from studies of the marmoset brain

“…Psychophysics studies have demonstrated that, in humans, the peripheral visual field (up to the edge of vision) is no more sensitive than the central visual field with respect to the discrimination of the direction and speed of motion (van de Grind et al, 1983;McKee and Nakayama, 1984;To et al, 2011b). In our marmoset V1 data (Yu and Rosa, 2014; Fig.…”

Early Disrupted Neurovascular Coupling and Changed Event Level Hemodynamic Response Function in Type 2 Diabetes: An fMRI Study

“…In this type of studies, the literature recommendation is to normalize the stimuli to individual threshold units. 30,31 Notably, we also tested the association between global activation measures and diabetic retinopathy grades in this subgroup of patients and we did not find a significant correlation. We assume that gross abnormalities in the HRF in this subgroup could not have driven the main findings of this study.…”

Examining the gaze behaviors of harvester operators: an eye-tracking study

“…However, full resolution of visual information is only obtained in the foveal region, covering about 2 degrees of the visual field. Moreover, the periphery is another part of the field of view which is utilized for things like detecting motion and hazards, balance and keeping in lane while driving (Mourant & Rockwell 1970;Holmqvist et al 2011;To et al 2011;Traschütz et al 2012). However, peripheral vision is negatively affected by increases in cognitive load and age.…”