EEG-based spatial navigation estimation in a virtual reality driving environment

Chin-Teng Lin*, Fu S. Yang, Te Chung Chiou, Li-Wei Ko, Jeng-Ren Duann, Klaus Gramann

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

6 Scopus citations

Abstract

The aim of this study is to investigate the difference of EEG dynamics on navigation performance. A tunnel task was designed to classify subjects into allocentric or egocentric spatial representation users. Despite of the differences of mental spatial representation, behavioral performance in general were compatible between the two strategies subjects in the tunnel task. Task-related EEG dynamics in power changes were analyzed using independent component analysis (ICA), time-frequency and non-parametric statistic test. ERSP image results revealed navigation performance-predictive EEG activities which is is expressed in the parietal component by source reconstruction. For egocentric subjects, comparing to trails with well-estimation of homing angle, the power attenuation at the frequencies from 8 to 30 Hz (around alpha and beta band) was stronger when subjects overestimated homing directions, but the attenuated power was decreased when subjects were underestimated the homing angles. However, we did not found performance related brain activities for allocentric subjects, which may due to the functional dissociation between the use of allo- and egocentric reference frames.

Original languageEnglish
Title of host publicationProceedings of the 2009 9th IEEE International Conference on Bioinformatics and BioEngineering, BIBE 2009
Pages435-438
Number of pages4
DOIs
StatePublished - 18 Nov 2009
Event2009 9th IEEE International Conference on Bioinformatics and BioEngineering, BIBE 2009 - Taichung, Taiwan
Duration: 22 Jun 200924 Jun 2009

Publication series

NameProceedings of the 2009 9th IEEE International Conference on Bioinformatics and BioEngineering, BIBE 2009

Conference

Conference2009 9th IEEE International Conference on Bioinformatics and BioEngineering, BIBE 2009
CountryTaiwan
CityTaichung
Period22/06/0924/06/09

Keywords

  • Allocentric
  • Egocentric
  • Electroencephalograph (EEG)
  • Reference frame
  • Spatial navigation

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