Three-chamber social approach and social novelty test in <i>Htr2c</i>^<i>-/Y</i> juvenile male mice.

<p><b>(A)</b> Time spent in each chamber. <b>(B)</b> Approach-avoidance scores. <b>(C)</b> Preference index: [(number of mice where the time in the mouse chamber was ≥ 10% than the time spent in the tube chamber)–(number of mice where the time in the mouse chamber was < 10% than the time spent in the tube chamber)]/(total number of mice). <b>(D)</b> Velocity and distance traveled. <i>n</i> = 9 per genotype. *: <i>p</i><0.05, NS: non-significant difference with paired samples t-test <b>(A)</b> and independent-samples t-test <b>(B</b> and <b>D).</b>