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. 2010 Jun 25;107(28):12692–12697. doi: 10.1073/pnas.1002418107

Fig. 2.

Fig. 2.

Laser stimulation produces robust activation of LA neurons. (A) Example peristimulus time histogram (PSTH) plot (bin size = 50 ms) and spike rasters from a single LA neuron shows average firing rate (y axis, in Hz) in response to laser stimulation at 20-Hz stimulation frequency (10-ms laser pulse duration) for 1 s (thick blue lines denote each laser pulse during the 1-s stimulation period). (B) Population averaged firing rate in response to 20-Hz (Upper) and 50-Hz (Lower) laser stimulation at 10-ms (black lines), 5-ms (broken lines), and 2-ms (gray lines) laser pulse durations. Total n = 15 cells (from four animals) for 20-Hz stimulation, nine of which also received 50-Hz stimulation. Blue bar beneath graphs denotes the duration of the 1-s train at the different frequencies. (C and D) Examples of CFOS-immunolabeled cells (brown dot labeling) in the LA from the laser-stimulated (D) and nonstimulated (C) hemispheres.