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. 2009 Mar 17;9:7. doi: 10.1673/031.009.0701

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© 2009

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Figure 8. — OSDNs showed a broad spatial distribution of direction sensitivities in Manduca sexta. A 3D directionalsensitivity vector for each unit was obtained by assigning a single sensitivity value for each axis of motion: horizontal axis = Rright - Rleft, vertical axis = Rdown - Rup, and looming axis = Rexpand - Rcontract. The distribution of these sensitivity vectors is shown in a 3D (A), as well as the three projected 2D plots: the vertical axis plotted against horizontal (B), looming against vertical (C) and looming against horizontal (D).