Table 1.

Five V1 models differing in their spatial and temporal sparsity, measured via kurtosis, and the resulting classification performance measured via the area under the ROC curve (Az).

	Spatial Sparseness (Kurtosis)	Temporal Sparseness (Kurtosis)	Classification (Az)
Model 1	8.50	2.51	0.73
Model 2	11.83	1.42	0.84
Model 3	14.91	0.08	0.87
Model 4	8.84	0.60	0.76
Model 5	9.86	1.15	0.78