often inflated, consistent with reporting biases [30]. Interestingly, this and another investigation suggested that studies with fewer coauthors tend to report larger brain abnormalities [31]. Similar biases were also detected in the use of functional magnetic resonance imaging (fMRI) in an evaluation of 94 whole brain fMRI meta-analyses with 1788 unique datasets of psychiatric or neurological conditions and tasks [32]. Reporting biases seemed to affect small fMRI studies, which may be analyzed and reported in ways that may generate a larger number of foci (many foci especially in smaller studies may represent false-positives) [32].
