ISC and kNN map (min 100s)

Contributed by kauttoj on March 15, 2017

Collection: Brain mechanisms underlying cue-based memorizing during free viewing of movie Memento

Description: This map shows voxels with significant difference in their BOLD temporal activation between original Memento (condition 1) and chronological Memento (condition 2). We computed inter-subject correlation between all subject-pairs and resulting correlation matrix was analyzed with RSA and k-nearest neighbor classifier (average over k=3,5,7). Correlation matrix was computed as a weighted sum over 15 movies segments that were at least 150s long. Comparison was done for all gray-matter voxels. Two resulting maps (from two methods) were combined by requiring that significant voxels passed p<0.05 (permutation tests, FDR adjusted) for both analyses. This final map shows all those voxels with additional cluster size threshold 20 (clusters smaller than this was considered as spurious).

Task View 3D View
Warning: This map seems to be thresholded, sparse or acquired with limited field of view (97.7% of voxels are zeros). Some of the NeuroVault functions such as decoding might not work properly. Please use unthresholded maps whenever possible.
Field Value
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