Improving the validity of neuroimaging decoding tests of invariant and configural neural representation
Fig 8
Pervasiveness of the problem of false positive invariance for the extreme case of context-specificity studied in simulation 1.
Proportion nullity represents the proportion of all dimensions in the measurement space that would produce false positive invariance, and therefore the size of the false positive invariance problem. The values reported were always the same for a given combination of number of neural channels and number of stimuli, across 200 randomly sampled encoding models.