Table 1.

Experiment 1. Parameters of the Gabor patterns and the straight lines fitted separately to contrast thresholds to the left and right of the fixation point.

Observer	Gabor Pattern			Left of Fixation				Right of Fixation
	SD	Phase	Duration	Slope	Intercept	R2	k	Slope	Intercept	R2	k
	(deg)		(msec)	(dB/cycle)	(dB re 1)			(dB/cycle)	(dB re 1)
KC	0.18	cos	90	−0.47	−32.3	0.91	−0.054	0.47	−32.0	0.79	0.054
KRH	0.25	sin	90	−0.44	−41.2	0.97	−0.051	0.39	−40.3	0.96	0.045
JMF	0.25	sin	240	−0.46	−36.8	0.98	−0.053	0.32	−36.9	0.95	0.037
NNS	0.18	cos	90	−0.50	−32.9	0.93	−0.058	0.49	−32.6	0.86	0.056
SVR	0.18	cos	90	−0.52	−34.8	0.91	−0.060	0.60	−36.6	0.72	0.069
Mean				−0.48		0.94	−0.055	0.454		0.856	0.052
SD				0.032		0.033	0.004	0.106		0.103	0.012