Paper Info
Title
EEG-based Evaluation of Cognitive Workload Induced by Acoustic Parameters for Data Sonification.
Abstract
Data Visualization has been receiving growing attention recently, with ubiquitous smart devices designed to render information in a variety of ways. However, while evaluations of visual tools for their interpretability and intuitiveness have been commonplace, not much research has been devoted to other forms of data rendering, \eg, sonification. This work is the first to automatically estimate the cognitive load induced by different acoustic parameters considered for sonification in prior studies~\citeferguson2017evaluation,ferguson2018investigating. We examine cognitive load via (a) perceptual data-sound mapping accuracies of users for the different acoustic parameters, (b) cognitive workload impressions explicitly reported by users, and (c) their implicit EEG responses compiled during the mapping task. Our main findings are that (i) low cognitive load-inducing (ıe, more intuitive) acoustic parameters correspond to higher mapping accuracies, (ii) EEG spectral power analysis reveals higher α band power for low cognitive load parameters, implying a congruent relationship between explicit and implicit user responses, and (iii) Cognitive load classification with EEG features achieves a peak F1-score of 0.64, confirming that reliable workload estimation is achievable with user EEG data compiled using wearable sensors.
Year
DOI
Venue
2018
10.1145/3242969.3243016
ICMI
Keywords
DocType
Volume
Data Sonification, EEG, Cognitive Workload, Acoustic parameters
Conference
abs/1808.06055
ISBN
Citations 
PageRank 
978-1-4503-5692-3
2
0.39
References 
Authors
9
4
Name
Order
Citations
PageRank
Maneesh Bilalpur140.76
Mohan Kankanhalli23825299.56
Stefan Winkler330.74
Subramanian Ramanathan448760.35