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| C and S withthe same activationsigns | C and S withdifferent activationsigns | |
| NSuppressiondM >0 | 862 | 109 |
| NFacilitationdM <0 | 188 | 219 |
Average number of voxels (VOIAVA) across all subjects showing facilitative interaction (NFacilitation) and suppressive interaction (NSuppression ), when center (C) and surround (S) had the same and when they had different sign of BOLD response.
