%A SJJ Gould %A LL Chuang %A I Iacovides %A D Garaialde %A ME Cecchinato %A BR Cowan %A AL Cox %I Association for Computing Machinery (ACM) %D 2021 %K Friction, design, interaction, dual process theory, cognition %X A lot of academic and industrial HCI work has focused on making interactions easier and less effortful. As the potential risks of optimising for effortlessness have crystallised in systems designed to take advantage of the way human attention and cognition works, academic researchers and industrial practitioners have wondered whether increasing the g€friction' in interactions, making them more effortful might make sense in some contexts. The goal of this special interest group is to provide a forum for researchers and practitioners to discuss and advance the theoretical underpinnings of designed friction, the relation of friction to other design paradigms, and to identify the domains and interaction flows that frictions might best suit. During the SIG, attendees will attempt to prioritise a set of research questions about frictions in HCI. %T A Special Interest Group on Designed and Engineered Friction in Interaction %L discovery10130282 %J Conference on Human Factors in Computing Systems - Proceedings %O This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. %B CHI EA '21: Extended Abstracts of the 2021 CHI Conference on Human Factors in Computing Systems %C New York, NY, USA