Table 2:

Rater comparisons: no versus any fMRI experiencea

No fMRI ExperienceAny fMRI ExperienceP Value
Distance from foot motor centroid20 ± 13 mm13 ± 6 mm2 × 10−6b
Arrow in motor gyrus47% (118/252)67% (160/238)7 × 10−5b
Tumor in foot motor cortex73% (183/252)81% (192/238).121
Tumor in motor gyrus66% (167/252)76% (181/238).06
  • a Numbers in parentheses indicate the number of correct responses over the total number of responses (eg, in the no fMRI group, there were 18 raters for each of the 14 cases, making 252 total responses).

  • b Significant (P ≤ .05).