Dark (10 min)–light (10 min)–dark (10 min) paradigm for AB and TL larvae.

<p><b>Panel A</b>: <i>Distance moved</i> (means + SEMs) for AB and TL larvae across the different light-dark periods (for statistics see text; between strains: Student’s <i>t</i>-test; <i>*</i>: <i>p ≤ 0</i>.<i>05</i>, <i>**</i>: <i>p ≤ 0</i>.<i>01</i>, <i>***</i>: <i>p ≤ 0</i>.<i>001)</i>. <b>Panel B</b>: Change in <i>maximum velocity</i> (Δ of the first 30s of the light period and the last 30s of the dark period; means + SEMs) from dark to light for AB and TL larvae (statistics: values different from 0 (<i>i</i>.<i>e</i>. no change) per strain (one-sample <i>t</i>-test): *: <i>p</i> ≤ 0.05 (1-tailed values [<a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0175420#pone.0175420.ref010" target="_blank">10</a>,<a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0175420#pone.0175420.ref011" target="_blank">11</a>])). <b>Panel C:</b> Change in <i>distance moved</i> (Δ of the first 30s of the dark period and the last 30s of the light period; means + SEMs) from light to dark for AB and TL larvae (statistics: values different from 0 (<i>i</i>.<i>e</i>. no change) per strain (one-sample <i>t</i>-test): ***: <i>p</i> ≤ 0.001 (1-tailed values [<a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0175420#pone.0175420.ref010" target="_blank">10</a>,<a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0175420#pone.0175420.ref011" target="_blank">11</a>]); between strains: Student’s <i>t</i>-test; *: <i>p</i> ≤ 0.05).