Data from Churan et al. 2018 Comparison of the precision of smooth pursuit in humans and head unrestrained monkeys

<p>Experiments were performed in two rhesus monkeys, B and E. Each monkey made a combination of slow and fast eye-movements following a visual target. The target was stationary at first and then either abruptly started moving (at a speed of 10&deg;/s) in a certain direction (Ramp paradigm) or made a Step before starting the motion (Step-Ramp paradigm). By using a specific Step size and Step direction the initial saccade was eliminated in the Step-Ramp paradigm. The direction of the stimulus motion was predominantly horizontal with a smaller vertical component that was systematically varied between 0&deg; and +-20&deg;. We investigated how precisely the monkeys can follow this vertical component of the stimulus motion.</p> <p><strong>The files:</strong></p> <p>There are separate files for each monkey (B and E) and paradigm (Ramp and Step_Ramp). The files are MATLAB data files.</p> <p>Ramp:</p> <p>Each file consists of three variables &ndash; &lsquo;alldatx&rsquo;, &lsquo;alldaty&rsquo;, and &lsquo;init&rsquo;.</p> <p>&lsquo;alldatx&rsquo; and &lsquo;alldaty&rsquo; are cell arrays in which each cell represents one vertical component of the stimulus: 1=20&deg; up, 2=10&deg; up, 3=5&deg; up, 4=2&deg; up, 5=0&deg; , 6=2&deg; down, 7=5&deg; down, 8=10&deg; down, 9=20&deg; down. Each cell contains a matrix of n x 2001 elements. Each row represents the eye velocities during one individual trial between 1000 ms before and 1000 ms after the start of stimulus motion with a sampling rate of 1000 Hz.</p> <p>&lsquo;init&rsquo; is a cell array in which each cell represents one vertical component of the stimulus (s. above). Each cell contains a structure array which shows the approximate properties of the initial saccade in each trial:</p> <p>&lsquo;init.t&rsquo;: Start end end time of the saccade (in ms) after the start of stimulus motion.</p> <p>&lsquo;init.amp&rsquo;: Amplitude of the initial saccade in deg</p> <p>&lsquo;init.startpos&rsquo;, &lsquo;init.endpos&rsquo;: start- and end-position (x, y) of the saccade</p> <p>Step_Ramp:</p> <p>Each file consists of two variables &ndash; &lsquo;alldatx&rsquo;, &lsquo;alldaty&rsquo;. Description is the same as for Ramp.</p>