a decreasing trendp = 0.017
The GCs also exhibited a decreasing trend after stimulation (optimal frequency on the basis of spike counts: Pt. 1: p = 0.017, Pt. 3: p = 0.03, Pt. 6: p = 0.008; optimal frequency on the basis of PSD: Pt. 4: p = 0.03, Pt. 6: p = 0.008, Pt. 7: p = 0.004).