Table 3.

Properties of fEPSPs induced by layer 1a stimulation in horizontal slices

	Recording Site	Onset Latency	Peak Latency	Peak Fluorescence ΔF/F, %
Normal ACSF	Layer 1 (n = 6)	0.0*	1.2*	−0.41 ± 0.028
	Layers 2–3 (n = 6)	0.0*	3.4 ± 0.22	−0.19 ± 0.0085
	Layers 5–6 (n = 6)	1.0 ± 0.22	8.0 ± 1.00	−0.12 ± 0.018

Onset latency, peak latency, and peak fluorescence amplitude of fEPSPs in horizontal slices. Onset and peak latencies were longer in deep layers than in superficial layers.

^*SE was much less than the sampling time.