Cover legend: When the visual world suddenly moves during arm movement, the hand is unintentionally dragged in that visual motion direction with quite short latency, named manual following response (MFR). This response is highly dependent on the spatiotemporal structure of the visual world. The top center three-dimensional plot in the cover illustration shows the MFR amplitude variation (tuning surface to fit the data) against spatial and temporal frequency of large-field visual motion, and the bottom center panel shows the color contour plot of the tuning surface (abscissa: log spatial frequency; ordinate: log temporal frequency). Sinusoidal grating image placed at the four corners of the contour plot show the spatial pattern (abscissa) in the time development (ordinate) of the visual motion, which induces MFR. The specificity of spatiotemporal tuning of MFR is similar to that of oculomotor response induced by visual motion but is clearly different from that of the perceptual contrast sensitivity of visual motion. This suggests a distinctive visual motion processing shared with other motor systems. For details, see the article by Gomi et al. in this issue (pages 5301–5308).