Session: DTM-01-01 - New Models, Constructs, and Explanations in DTM

Paper Number: 89995

89995 - The Cognitive Costs of Design Tasks: The Evolution of Cognitive Load in Design and Its Relationship With Design Outcomes 

Problem solving can be a cognitively intensive undertaking; as design is characterized by ambiguity and unknowns, design problems in particular can be cognitively expensive. Few studies examine the evolution of cognitive load during the engineering design process and the linkages between sub-dimensions of cognitive load and design task outcomes. To address this issue, the goal of this work is to establish a relationship between cognitive load, design task, and design outcomes. Twenty participants were recruited to perform a design task where their mental workload was recorded at each stage of the design process. Their ideation and prototype outcomes were then evaluated to determine if there is a relationship between cognitive load, design task, and design outcomes. Results suggest that there is a significant difference in cognitive load experienced by the designer during each stage of the design process and while cognitive load is correlated with idea generation design outcomes, it may not be tied to prototyping design outcomes. The aim of this work is to build foundational knowledge about the linkages between cognitive load and design tasks. We compare the cognitive load of designers in two distinct design tasks: idea generation and prototyping. Additionally, the relationship between cognitive load and design outcomes, such as novelty and quality, is investigated to understand if the effect of cognitive load on task performance is mediated by the nature of the design task itself.

Presenting Author: Nicole Calpin The Pennsylvania State University

Presenting Author Biography: Nicole Calpin is a graduate researcher in the Technology and Human Research in Engineering Design Lab and a graduate student in the Department of Mechanical Engineering at the Pennsylvania State University.

Authors:

Nicole Calpin The Pennsylvania State University
Jessica Menold The Pennsylvania State University