Table 3.
Relationships between covariance patterns derived from both stimulus materials, and their subject expression. (The PROBE phase only produced a significant pattern in the Letter task, and was thus left out here.) The first row assesses the similarity of the brain regions involved in the covariance patterns of both stimulus materials, using the topographic correlation between pattern loadings as a test statistic. The second and third row assesses the similarity of utilization of both types of covariance patterns, listing the correlations between the subject expressions of both covariance patterns in data of both stimulus types. To help the reader, we explain the content of the field in the 2nd row and 1st column: in the STIM phase of the Letter data, utilization of both Letter- and Shape-patterns was not significantly related to one another as can be seen from the p-value of 0.17.
| STIM | RET | |
|---|---|---|
| Topographic concordance of covariance patterns; CORR(vl, vs ) |
R=0.14, p=0.30 |
R=0.37, p=0.008 |
| Mean expression of covariance patterns in Letter data; CORR(L · vl, L · vs ) |
R=−0.22, p=0.17 |
R=0.36,
p=0.02 |
| Mean expression of covariance patterns in Shape data; CORR(S · vl, S · vs ) |
R=−0.03, p=0.88 |
R=0.80, p=5 e- 6 |