Figure 3.

Tuning curves of the response to each orientation and direction. (A,B) Orientation (A) and direction (B) tuning curves are plotted after sifting preferred orientation or direction to 90°, averaging response magnitude and fitting with a Gaussian function (see Materials and Methods). All visually responsive neurons are used. Error bars indicate standard error of mean (S.E.M) (across animals). (C,D) Orientation (C) and direction (D) tuning curves obtained after correcting neuropil contamination (see Materials and Methods).