Accession Number:

ADA551175

Title:

Neuro-ergonomic Research for Online Assessment of Cognitive Workload

Descriptive Note:

Final rept. 24 Aug 2010-23 Aug 2011

Corporate Author:

NATIONAL INFORMATION COMMUNICATION TECHNOLOGY AUSTRALIA LTD EVELEIGH

Personal Author(s):

• Chen, Fang

Report Date:

2011-10-01

Pagination or Media Count:

92.0

Abstract:

This is the final report of a project to use electroencephalography based cognitive load measurement to understand its place in the technology landscape. This report summarizes the research activities, results of the user studies and research accomplishments out of the online assessment of cognitive workload project in the past year. At the start of the project, we carried out a literature review on electroencephalography EEG based cognitive load measurement CLM to understand the technology landscape. We then investigated some statistical features of EEG signals for online measurement. After that, we explored further on various spectral features, including entropy, weighted mean frequency and bandwidth. Finally we investigated the feasibility of using a low-cost EEG headset for CLM. All together, we had carried out 3 sets of user experiments to validate the research outcomes based on a common set of nletter word identification tasks while a subject is reading silently.

Descriptors:

• *ELECTROENCEPHALOGRAPHY
• *MEASUREMENT
• *MENTAL ABILITY
• *REAL TIME
• AUSTRALIA
• EXPERIMENTAL DESIGN
• FEATURE EXTRACTION
• MAN COMPUTER INTERFACE
• PERFORMANCE(HUMAN)
• SIGNAL PROCESSING
• STATISTICAL ANALYSIS
• WORKLOAD

Subject Categories:

• Psychology
• Medicine and Medical Research
• Human Factors Engineering and Man Machine Systems

Distribution Statement:

APPROVED FOR PUBLIC RELEASE