Area PEc Neurons Use a Multiphasic Pattern of Activity to Signal the Spatial Properties of Optic Flow

Figure 5

Number of phases recorded across conditions in PEc cells. Neurons are grouped by the number of phases to show their different phasic activity. Frequency distribution histograms indicating the number of PEc neurons that showed two or more phases during the entire period of stimulation. (a) Expansion stimulus in the retinotopic condition. (b) Expansion stimulus in the eye position condition. (c) Expansion stimulus in the angle of gaze condition. (d) Contraction stimulus in the retinotopic condition. (e) Contraction stimulus in the eye position condition. (f) Contraction stimulus in the angle of gaze condition. Conventions as in Figure 1.