Figure 4.

Definition of turns during object exploration. A turn, either to the left (counterclockwise traveling) or to the right (clockwise traveling), was defined if the mouse turned more than 180° from the original position indicated as “M” (A). If the mouse consecutively turned more than 360° in one direction at once, we counted the first 360° as one turn and then started counting the new one. For example, a consecutive turn from 180° to 540° was counted as single turn (B) and that from 540° to 720° was counted as two turns (C).

Kawahata et al. BMC Neuroscience 2014 15:4   doi:10.1186/1471-2202-15-4
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