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Oculomotor behavior and parameters are known to be affected by the allocation of attention and could potentially be used to investigate attention disorders. We explored the oculomotor markers of Attention-deficit/hyperactivity disorder (ADHD) that are involuntary and quantitative and that could be used to reveal the core-affected mechanisms, as well as be(More)
It has been suggested that subjective disappearance of visual stimuli results from a spontaneous reduction of microsaccade rate causing image stabilization, enhanced adaptation, and a consequent fading. In motion-induced blindness (MIB), salient visual targets disappear intermittently when surrounded by a moving pattern. We investigated whether changes in(More)
During natural viewing large saccades shift the visual gaze from one target to another every few hundreds of milliseconds. The role of microsaccades (MSs), small saccades that show up during long fixations, is still debated. A major debate is whether MSs are used to redirect the visual gaze to a new location or to encode visual information through their(More)
Collinear facilitation of contrast sensitivity supported by lateral interactions within primary visual cortex is implicated in contour and object perception, with neural correlates in several frequency bands. Although higher component of the ERP power spectrum, the gamma-band, is postulated to reflect object representation, attention and memory, its(More)
BACKGROUND Spontaneous eye-blinking is known to serve an important physiological function, but recent evidence show that it is also linked with cognitive processes. Here we show that the eye-blinks, although rare, are similar to microsaccades in their modulation pattern in response to transient perceptual events, including the temporal dependencies on(More)
Israeli Air Force (IAF) pilots continue flying combat missions after the symptoms of natural near-vision deterioration, termed presbyopia, begin to be noticeable. Because modern pilots rely on the displays of the aircraft control and performance instruments, near visual acuity (VA) is essential in the cockpit. We aimed to apply a method previously shown to(More)
Correspondence to: Nurith Hiller M.D., Department of Radiology, Shaare Zedek Medical Center, P.O.B. 3235, Jerusalem 91031, Israel vealed a large cauliflower lesion on the posterior aspect of the right shoulder and arm, measuring 15x 15cm across (Fig. 1). The patient was unable to move his shoulder. Lymphadenopa thy was noted in the posterior aspect of the(More)
Active sensing and sensorymotor loops Sensation is an active process whereby sensory organs continuously and actively sample the external world, usually by physical movements. Thus, to acquire meaningful information about the surrounding, the brain must integrate sensory signals with information about the active movement that induced them. We study how(More)
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