Recent years have seen a surge of research on variability in functional brain connectivity
within and between individuals, with encouraging progress toward understanding the
consequences of this variability for cognition and behavior. At the same time, well-founded
concerns over rigor and reproducibility in psychology and neuroscience have led many to
question whether functional connectivity is sufficiently reliable, and call for methods to
improve its reliability. The thesis of this opinion piece is that when studying variability in …