Figure 4. SC directionality was stronger on anisotropic than flat substrates, as measured by velocity autocorrelation and turning probabilities.

A. Cartoon demonstrating the calculation of characteristic drop off times, and , from the autocorrelation , based on theoretical aligned and unaligned motion. B. Characteristic drop off times, calculated from the velocity autocorrelation for each condition and direction. *,#: significant in Mann-Whitney U tests against . : significant in multiple comparisons across anisotropic conditions with Sidak correction. C. Graph shows turning probability parallel () and perpendicular () to the topography. *, #: significant in pairwise t-test against flat overall turning probability. : significant in multiple comparisons across anisotropic conditions with Sidak correction.