Enhanced Intensity Dependence as a Marker of Low Serotonergic Neurotransmission in High Optimistic College Students

Table 2

ERP Data: N1, P2 amplitudes and N1, P2, N1/P2 amplitude slopes.

	Optimistic group (𝑛=24)	Pessimistic group (𝑛=24)
	(Mean ± SD)	(Mean ± SD)
Amplitude 60 dB/100 dB/SPL (μV)^1
N1	4.97±2.09/9.01±3.30	5.11±2.10/10.00±3.74
P2	2.03±1.66/9.73±5.50	1.96±1.61/6.80±2.99
Amplitude slope (μV/10 dB)^2
N1	1.02±0.72	1.26±0.64
P2	1.91±1.20	1.21±0.61
N1/P2	2.93±1.18	2.47±1.03

Note: ¹The lowest (60 dB) and the highest (100 dB) stimulus intensities of N1 and P2 amplitudes data are given at Cz in μV.
²Values of the mean amplitude slopes increases were given within the five stimulus intensities in μV per 10 dB.