Baseline Drift

Definition: A baseline drift refers to a gradual change or deviation in a signal’s behavior or output over time. Changes in the contact between the sensors and the scalp, temperature variations, instrument instability, and other variables can all contribute to this change.

Alternative definition:

Synonym: Signal drift

References: https://doi.org/10.3389/fnhum.2015.00617

Related terms: Motion artifact, baseline shift