Table 3.
Definition of evaluation measures of Simulation 2 (Simulation 2 section).
Level | Measure | Notation | Definition | Description | |
---|---|---|---|---|---|
Voxel | False discovery rate | vFDR |
|
Expected value of the proportion of false positive voxels among all rejected voxels | |
Sensitivity | vSens | E(V1|1) / V·|1 | Expected value of the proportion of truly active voxels that have been correctly rejected | ||
Cluster | Family-wise error rate | cFWER | P(C1|0 > 0) | Probability of observing a family-wise error, which occurs when there are one or more false positive clusters per map |
Note: We adopted the notational convention of Nichols and Hayasaka (2003) to define the measures (see Table 2 and Simulation 2 section). As defined in Nichols and Hayasaka (2003), I{A} is the indicator function for an event A.