RightEye version 5.9.2 will be released on September 1, 2023 for all RightEye systems. This update includes our much anticipated, new Prosaccades Test.
New Prosaccades Test Features
The RightEye Prosaccade Test consists of:
- A battery of four (4) Testing Blocks, each containing fourteen (14) Prosaccade Trials. The entire Prosaccade Test will take 2-3 minutes to complete and includes a comprehensive output report.
- New report includes the following metrics: Saccadic latency (ms), Saccadic amplitude (degrees), Target accuracy (millimeters), Antisaccade number (#), Prosaccade number (#), and Saccadic onset (ms).
Prosaccades is a well-known test that is used to examine saccadic eye movements. In a typical prosaccade task, participants are instructed to fix on a central stimulus. Then, they have to direct their gaze toward a target stimulus appearing at the periphery as quickly and as accurately as possible. Research has shown that saccadic eye movements are associated with multiple cognitive processes including processing speed, attention, and inhibitory control (Hutton, 2008; Noiret et al., 2017).
To perform the prosaccade trial, an individual is asked to fixate on a motionless target (the starting cross “+”) in the center of the screen. A stimulus (“X”) is then presented to one side of the target. The individual is asked to perform a saccadic movement in the direction toward the stimulus and then return back to briefly fixate on the starting cross and await the appearance of the next stimulus. For example, if a stimulus is presented to the left of the starting cross, the patient should rapidly move their eyes toward the left. Failure to inhibit a reflexive saccade is considered an error.
Prosaccades typically have a faster reaction time than antisaccades.