Momentary interruptions can derail the train of thought.
Altmann EM, Trafton G, Hambrick DZ. Momentary interruptions can derail the train of thought. J Exp Psychol Gen. 2014;143(1):215-26. doi:10.1037/a0030986.
In this analysis, short interruptions greatly increased sequence errors. These findings contribute to patient safety concerns about distractions during medication administration and other sequenced processes.