Table 1.

Properties of signals obtained during voltage-sensitive dye imaging and electrophysiological recordings

	Recording Site	Onset Latency, ms	Peak Latency, ms	Peak Amplitude
VSDI	Layer 5 (n = 5)	1.0 ± 0.24	4.8*	−0.23 ± 0.011%
FP	Layer 5 (n = 5)	4.8 ± 0.60	11.8 ± 0.60	−1.56 ± 0.094 mV

Properties of signals obtained during voltage-sensitive dye imaging (VSDI) and electrophysiological recordings. Note that the time course of the fast optical signal (onset and peak latency from electrical stimulation) is similar to that of a prominent FP. Data are presented as the mean ± SE.

^*SE was much less than the sampling time.