...Wael Salem; Benjamin Cellini; Mark A. Frye; Jean-Michel Mongeau ABSTRACT Most animals shift gaze by a ‘fixate and saccade’ strategy, where the fixation phase stabilizes background motion. A logical prerequisite for robust detection and tracking of moving foreground objects, therefore...

... a small object elicits avoidance. We studied visuomotor behavior in rigidly and magnetically tethered D. melanogaster to reveal strategies that generate aversion to a small object. We discovered that small-object aversion in tethered flight is enabled by aversive saccades and smooth movement, which vary...

... with the direction of motion of the visual field. In contrast, during a startle saccade, the uncovered eye does drive a covered eye. Such disparate levels of independence between the two eyes suggest that responses to individual visual tasks are likely to follow different neural pathways. References Bradshaw...

.... From each individual bird, we randomly selected five saccades (120 total saccades; 65 recorded from the left eye and 55 recorded from the right eye). Using Yarbus Assisted (Positive Science, LLC, New York, NY, USA), we manually outlined the pupil during each frame of the saccade (it was not possible...

...Roland Kern; Norbert Boeddeker; Laura Dittmar; Martin Egelhaaf SUMMARY Blowfly flight consists of two main components, saccadic turns and intervals of mostly straight gaze direction, although, as a consequence of inertia, flight trajectories usually change direction smoothly. We investigated how...

... is composed of three distinct behavioral modules. First, a fly actively turns towards a stationary target via a directed body saccade. Next, it begins to decelerate at a point determined by both the size of the visual target and its rate of expansion on the retina. Finally, the fly extends its legs when...

...B. Cheng; S. N. Fry; Q. Huang; X. Deng SUMMARY We systematically investigated the effect of body rotation on the aerodynamic torque generation on flapping wings during fast turning maneuvers (body saccades) in the fruit fly Drosophila . A quasi-steady aerodynamic simulation of turning maneuvers...

...John A. Bender; Michael H. Dickinson SUMMARY The flight trajectories of fruit flies consist of straight flight segments interspersed with rapid turns called body saccades. Although the saccades are stereotyped, it is not known whether their brief time course is due to a feed-forward (predetermined...

...John A. Bender; Michael H. Dickinson SUMMARY Flying fruit flies, Drosophila melanogaster , perform `body saccades', in which they change heading by about 90° in roughly 70 ms. In free flight, visual expansion can evoke saccades, and saccade-like turns are triggered by similar stimuli in tethered...

.... Flies move through their environment using a series of straight flight segments separated by rapid turns, termed saccades, during which the fly alters course by approximately 90° in less than 100 ms. Altering the amount of background visual contrast caused significant changes in the fly’s translational...

... relative to the thorax. The yaw turns of the thorax (thorax saccades) are accompanied by faster saccades of the head, starting later and finishing earlier than the thorax saccades. Blowfly flight can be divided into two sets of episodes: ‘during saccades’, when high angular velocities of up to a few...

... of the position and orientation of the thorax with a resolution of 1 ms, 0.3 ° and 1 mm. Flight velocities inside the cage were up to 1.2 m s −1 , and accelerations were up to 1 g (≈10m s −2 ) vertically and 2 g horizontally. During flight, blowflies performed a series of short (approximately 20–30 ms) saccade...