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Behavioural Analysis in Geoscientific Data Interpretation

Western Australia

Geophysical data interpretation is a highly subjective task and interpreters use various data visualisation methods for enhancement and display in this process.  

The goal of this research was to understand how current visualisation practices may affect an interpretation; and ultimately to design and implement more effective visualisation and interpretation methods. As a first step toward these goals, the study aimed to understand how interpreters interact with the data when conducting specific tasks and to analyse variability in interpretation process between and within individuals. To achieve this we monitored the neurological and physiological responses of interpreters as they work using an eye tracker system (ETS) that tracks their vision during data observation and an electroencephalography (EEG) that captures brain responses as the interpretation proceeds. This was a Ph.D study by Yathnanthan Sivarajah.

Research Outcomes:

Sivarajah, Y., Holden, E.J., Togneri, R., Dentith, M.C., Lindsay, M., 2014, Visual Saliency and Potential Field Data Enhancements: Where is your attention drawn?, Special section: Interpretation and integration of gravity and magnetic data, Interpretation, November, pp. SJ9-SJ21.

Sivarajah, Y., Holden, E.J., Togneri, R., Price, G., Tan, T., 2014, Quantifying Target Spotting Performances with Complex Geoscientific Imagery Using ERP P300 Responses, International Journal of Human-Computer Studies 72, 3, pp. 275-283.

Sivarajah, Y., Holden, E.J., Togneri, R., Dentith, M., 2013, Identifying Effective Interpretation Methods for Magnetic Data by Profiling and Analysing Human Data Interactions, Interpretation, Vol. 1(1), pp.T45-T55.