. 2018 Nov 5;8:16310. doi: 10.1038/s41598-018-31435-0

Table 1.

Phosphene Counts for Each Viewing Condition.

Viewing Condition	Phosphene Counts
Viewing Condition	Full Visual Field (some beyond screen)	Falling on Screen with Gaze at Center	Within central 10 degrees (square window)
P_CLEAR	n/a	n/a	n/a
P₂₀₀₀	2000	1183	494
P₁₀₀₀	1000	591	252
P₅₀₀	500	300	136

Simulated phosphene patterns spanned the entirety of the visual field, although only a fraction of phosphenes in the current pattern would appear on the screen for any given trial, pattern, and gaze position. The counts of phosphenes in each pattern are shown here for (a) the entire visual field, (b) the extent of the screen with the gaze position in the center of the display, and (c) the central square of the visual field that measured 10 degrees on a side, approximating the part of the visual field most critical to the experimental task. Layouts of the patterns can be found in Figs 8 and 11.