2. Task coverage

2.1 Catalog to Atlas

One row per task in this catalog, recording its primary Atlas counterpart.

Match type	Tasks	Share
exact	70	68%
close	11	11%
related	4	4%
none	18	17%

2.2 Atlas to catalog

One row per Atlas task entry. 88 of the catalog’s tasks have at least one Atlas entry pointing at them, and 17 named variations are matched by an Atlas entry of their own.

Match type	Atlas entries	Share
exact	86	10%
close	73	9%
related	24	3%
none	674	79%

Most Atlas entries have no counterpart here, which is expected rather than a gap: this catalog admits only event-producing experimental paradigms, while the Atlas mixes those with instruments of several other kinds.

Why no counterpart	Atlas entries
Experimental paradigm not in the 103-task catalog	481
Self-report instrument	107
Standardized test battery	41
Imaging protocol label	26
Physiological procedure	19

The kind assigned to an unmatched entry is derived from its name by rule and is a heuristic, not a hand-checked judgement. The none verdict itself was reviewed.

2.3 Reading the two directions together

The directions answer different questions and can differ without contradiction. The catalog-to-Atlas table asks whether the Atlas contains a given paradigm; the Atlas-to-catalog table asks, for each Atlas entry, whether this catalog covers it.

Three tasks are none in the first table yet appear in the second with related rows: Self-Paced Reading, Sentence Comprehension and Virtual Radial Arm Maze. The Atlas has no entry that is any of those paradigms, but it does hold adjacent entries (Eye tracking paradigms, syntactic task, Porteus maze test). Both statements are true.