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Fig. 1. (A) Cartoon of fly showing the compound eyes and mechanosensory halteres.
(B) The flight simulator, which delivers visual and mechanosensory stimuli, is
composed of a wrap-around light-emitting diode (LED) display mounted within a
3 degrees-of-freedom rotational gimbal. The fly is mounted in the center of
the display, above a sensor that measures the left and right wingbeat
amplitudes. (C) Moving striped patterns simulate the optic flow generated when
the fly rotates along the roll and pitch axes.