Precues’ elevation of sensitivity is not only preattentive, but largely monocular

Monocular Elevation Deficiency: A Case Series of Surgical Outcome

Background: Inferior rectus recession, Knapp procedure, partial tendon transposition, and combined procedure are different surgical procedures in the management of monocular elevation deficiency (MED). Only a few studies have been published on the management of this problem. In this study, we report our experience with patients with MED focusing on the indications and types of surgery in the so...

Attentional effects on preattentive vision: spatial precues affect the detection of simple features.

Most accounts of visual perception hold that the detection of primitive features occurs preattentively, in parallel across the visual field. Evidence that preattentive vision operates without attentional limitations comes from visual search tasks in which the detection of the presence of absence of a primitive feature is independent of the number of stimuli in a display. If the detection of pri...

Measuring Preattentive Processes: When is Pop-out Not Enough?

Three behavioural tasks (standard visual search, multiple target search, and numberdiscrimination)weretestedwithavariety of stimuli relevanttotwo-stage theories of vision. One purpose was to compare the two versions of the search task; a second was to explore the relations between processes of search and enumeration. The two search tasks were quite consistent overall, with strong correlations b...

Only Female Age, and Not Blood Type, Is Associated with Ovarian Reserve

Rod-cone interaction in monocular but not binocular pathways.

Photopic background stimulation elevates scotopic increment thresholds (rod-cone interaction) at moderate background levels when both test and concentric disk-background stimuli enter the same eye (monocular condition) but not when they enter different eyes (dichoptic condition). Only when background levels are made extremely high is there any measurable dichoptic interaction, and this interact...