Comparison of microsaccade properties for microsaccades detected in both recording systems.

<p>Scatter plots for microsaccade magnitude (<b>A</b>), displacement (<b>B</b>), overshoot size (<b>C</b>), peak velocity (<b>D</b>), mean velocity (<b>E</b>), and duration (<b>F</b>). Each dot in (<b>A–F</b>) represents one microsaccade, with the property as measured with the video tracker on the <i>y</i>-axis and with the search coil on the <i>x</i>-axis. Average microsaccade magnitude (<b>G</b>), displacement (<b>H</b>), overshoot size (<b>I</b>), peak velocity (<b>J</b>), mean velocity (<b>K</b>), and duration (<b>L</b>), for each participant (i.e. average data from panels <b>A–F</b>). Each dot represents the average microsaccade property for one participant as measured with the video tracker on the <i>y</i>-axis and with the search coil on the <i>x</i>-axis. In the legend in panel (<b>A</b>), N indicates the number of common microsaccades detected in both data sets. Bar insets in (<b>G–L</b>) are the video tracker (red) and search coil (blue) averages across participants. Error bars represent the S.E.M. across participants (<i>n</i> = 4). * indicates statistical significance with a <i>p</i>-value < 0.05 (two-tailed paired <i>t</i>-tests).