The FLRFs of three example neurons showing that the modulation of frequency tuning by preceding noise was temporal-dependent. Panels in each row are the data from one neuron. Panels in column 1 show the control FLRF, and panels in columns 2 to 6 show the masked FLRFs determined at various ISIs. The masker was a white noise at 50 dB SPL for the three neurons. The ISIs for conditions in each column are shown (in ms) on the top of the panels in row 1.