(Downloading may take up to 30 seconds.
If the slide opens in your browser, select File -> Save As to save it.)
Click on image to view larger version.

Fig. 4. Difference in stroke amplitude (left-minus-right wing, blue) of
Drosophila melanogaster while responding to the black stripe. Time
traces show the fly's behaviour 10 s after switching on the stimulus bias.
(A–F) Flight at the damping coefficients 52, 156, 260, 520, 1040 and
5200 pNm s, respectively. The outcome of the numerical model for compensation
of the velocity bias (Eqn 9) is
shown in red. The visual target (black stripe) oscillated with an amplitude of
±48° and 0.5 Hz. The shaded areas indicate fixation behaviour.
Positive (negative) differences indicate clockwise (counter clockwise)
rotation.