Resting-state connectivity measures risk spurious correlations from global artifacts

Evidence

Since resting state connectivity is based upon correlations between activity in relevant channels, it is important to carefully remove any aspects of the data (such as fluctuations from heartbeat, breathing, or from movement artifacts that are present in all channels) that would produce a correlation but is not related to neural activity. — Dijk, Pim van, Physiology, Psychoacoustics and…, 4287

Categorization

• CANDY: A clean, memorable line about a methodological trap: physiological noise masquerades as neural correlation.