Cognitive Load.

The amount of mental processing power needed to use your site, affects how easily users find content and complete tasks.

External Cognition in Product Design: 3 Ways to Make Use of External Cognition in Product DesignInteraction Design FoundationJune 12th, 2018
Design principles for reducing cognitive loadJon YablonskiSeptember 19th, 2016
Reducing Cognitive Load: The Best UX Design for Your Community SiteHigher LogicFebruary 8th, 2016
How to reduce friction with good designThe Next WebMarch 8th, 2015
Psychology in web experience - minimising the cognitive loadNothing InteractiveJune 20th, 2014
Minimize Cognitive Load to Maximize UsabilityNielsen Norman GroupDecember 22nd, 2013
The Impact Of Cognitive LoadMind the ProductSeptember 23rd, 2013
Cognition & The Intrinsic User ExperienceUX MagazineMarch 6th, 2012