However, in over a third of the sample (37%; 7/19), inactivation of PTV caused an upward shift in their preferred velocities (Figures 4A–C; control: 21.8 ± 19.1°/s; range: 1.1°–46.2°/s vs. during PTV inactivation: 35.4 ± 19.9°/s; range: 3.3°–52.8°/s). Furthermore, in two of these cells, their high cut-off velocities also shifted upward. The RF centers of all seven cells were located over 10° from areae centrales. It is worth noting that in all but one cell, after rewarming of PTV the preferred velocity was the same as that before cooling PTV (Figure 4Cii).