Table 2.

Multiple regression on late positive potential amplitudes for pornographic minus neutral pictures based on TSMQ solitary sexuality.

	B	SE	β	p	R2	R2 change
P300
Step 1					0.032	0.032
Group	−0.620	0.432	−0.179	0.157
Step 2					0.055	0.023
Group	−0.620	0.430	−0.179	0.155
Solitary Sexuality	0.331	0.269	0.153	0.224
Step 3					0.150	0.095*
Group	−0.620	0.412	−0.179	0.137
Solitary Sexuality	−0.235	0.338	−0.109	0.489
Interaction	1.351	0.522	0.404	0.012
LPP
Step 1					0.007	0.007
Group	−0.029	0.457	−0.082	0.522
Step 2					0.044	0.037
Group	−0.294	0.452	−0.082	0.518
Solitary Sexuality	0.435	0.283	0.193	0.129
Step 3					0.106	0.062*
Group	−0.294	0.441	−0.082	0.507
Solitary Sexuality	−0.042	0.362	−0.019	0.908
Interaction	1.138	0.559	0.384	0.046

N = 64; Group is coded neutral feedback = 0 and negative feedback = 1; B, unstandardized coefficient; SE, standard error of B; β, standardized coefficient; P300, positive potential 300–500 ms post stimulus; LPP, late positive potential 500–800 ms post stimulus.

^*p < .05.