Ziad M. Hafed

The paper compares saccadic suppression strength between macaques and zebrafish, showing it reflects differences in sensory and motor noise levels and computational resource allocation.

This study shows that generating microsaccadic eye movements can enhance peripheral visual sensitivity independently of attentional demands.

The paper shows that short-latency visual signals in primates can bypass the primary visual cortex when combined with auditory stimuli, affecting saccadic eye movements.

During delayed saccade tasks, macaque foveal superior colliculus neurons burst after the go signal, leading peripheral collicular pauses by 10 ms, independent of target image, saccade direction or reaction time.

The paper shows that superior colliculus (SC) neuron responses predict saccadic reaction time better than primary visual cortex (V1) responses, especially when multiple neurons are considered.

This study compares coarse-to-fine visual processing dynamics in primate superior colliculus and primary visual cortex, finding stronger dynamics in the SC.

The paper compares covariation between superior colliculus and primary visual cortical activity with eye movement timing, finding stronger covariation in the superior colliculus.

This study shows that transient inactivation of the primary visual cortex eliminates visually-driven saccadic inhibition, highlighting the dominance of the geniculostriate pathway in this reflex.

This study investigates how visual and auditory stimuli modulate microsaccadic eye movements in rhesus macaques, finding that vision has a stronger influence than sound on microsaccadic inhibition.

The paper shows that foveal superior colliculus neurons signal trans-saccadic prediction errors when post-saccadic visual input mismatches pre-saccadic expectations.

This paper establishes a two-dimensional perisaccadic visual mislocalization paradigm in rhesus macaques, showing similar mislocalization patterns to humans.

This study shows saccadic suppression in zebrafish enhances the salience of ecologically relevant stimuli in the optic tectum by integrating visual and motor signals.

The paper examines peri-saccadic field potentials in the primate superior colliculus and finds stronger modulations in the upper visual field, indicating a sensory preference despite weaker motor bursts.

The paper investigates premicrosaccadic enhancement in the primate superior colliculus and finds stronger enhancement for dark contrasts at moderate levels, independent of neuronal preference.

This study shows that perisaccadic perceptual mislocalization strength depends on the visual appearance of saccade targets, suggesting corollary discharge conveys more than just spatial vectors.

The paper investigates how microsaccadic suppression affects peripheral perceptual detection performance across different visual backgrounds.

The paper investigates short-latency visual stimulus-driven ocular drift responses during gaze fixation, finding they are feature-tuned and synchronized with saccadic inhibition.

This study shows primate superior colliculus neurons rapidly detect and discriminate real-life objects, using spatial frequency information in their initial visual responses.

The paper investigates how saccadic inhibition in macaque monkeys is tuned to various visual features, finding systematic dependencies on stimulus size, spatial frequency, contrast, motion direction, and speed.

This study shows that primate saccade generation is rooted in a rhythmic source, consistent across human, macaque, and marmoset species.

This study shows that neuronal eye movement commands in the superior colliculus include a sensory representation of visual targets, with stronger feature discrimination than visual responses.

The paper shows that human peri-saccadic orientation identification is better in the upper visual field, matching the superior colliculus's spatial anisotropy rather than the primary visual cortex's.

This study shows that saccade-related bursts in the primate superior colliculus do not determine movement kinematics, as burst strength varies with visual field direction and target visibility without affecting kinematics.

This study shows that monkey superior colliculus neurons detect dark stimuli faster than bright stimuli, even if they are less sensitive to darks.

The paper identifies three retinal mechanisms underlying saccadic suppression in mice, pigs, and macaques using electrophysiology and modeling, showing suppression arises from temporal filtering and nonlinearities rather than inhibition.

The paper demonstrates that primate superior colliculus neurons are sensitive to very small visual pattern displacements, despite their large receptive fields.

This study shows that foveal visual locations are severely distorted in short-term memory, with the largest errors occurring for the most central targets.

This study investigates how perceptual saccadic suppression depends on image flow properties and luminance contrast polarity during saccades.

The paper shows that midbrain activity during eye movements can predictably alter ongoing saccades, indicating simultaneous integration of sensory and motor signals in the superior colliculus.

The paper shows that purely cardinal saccades have minimal curvature to correct for initial eye position variability, resolving neural circuit discontinuity issues without being sloppy.