DocumentCode :
3196736
Title :
ERP component analysis for rapid image searching in finer categories
Author :
Siyuan Xiao ; Bangyu Cai ; Lei Jiang ; Yiweng Wang ; Weidong Chen ; Xiaoxiang Zheng
Author_Institution :
Coll. of Comput. Sci. & Technol., Zhejiang Univ., Hangzhou, China
fYear :
2013
fDate :
3-7 July 2013
Firstpage :
3089
Lastpage :
3092
Abstract :
Event-related potentials (ERP)-based image triage (or search) in the context of Rapid Serial Visual Presentation (RSVP) exploits difference in the human brain response to target and distracted stimuli in the form of an image. So far, most paradigms focus on image triage (or search) among rough object categories. In this paper, we explored the possibility and effectiveness of target detection among finer categories like different animals. We analyzed on the difference of ERP components in two image search tasks, a simple-recognition task in which all images of a target are the same and a discriminative-recognition task in which all images are randomly different but belong to the same target category (the same kind of animal). We observed that the P3 amplitude reduced and the P3 latency delayed on the discriminative-recognition condition due to the increased difficulty of identifying different images belonging to the same category. But the average area under ROC curve reached 0.82 which indicated that rapid target detection among finer categories by single-trial ERP were feasible with trivial contribution of N1 and stable contribution of N2 and P3.
Keywords :
electro-oculography; electroencephalography; medical signal processing; pattern recognition; sensitivity analysis; P3 amplitude; P3 latency delay; ROC curve; discriminative-recognition task; electroencephalography; electrooculography; event-related potential component analysis; event-related potentials-based image triage; finer categories; human brain response; image search tasks; rapid image searching; rapid serial visual presentation; rapid target detection; rough object categories; simple-recognition task; target detection effectiveness; Animals; Classification algorithms; Educational institutions; Electrodes; Electroencephalography; Object detection; Visualization;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Engineering in Medicine and Biology Society (EMBC), 2013 35th Annual International Conference of the IEEE
Conference_Location :
Osaka
ISSN :
1557-170X
Type :
conf
DOI :
10.1109/EMBC.2013.6610194
Filename :
6610194
Link To Document :
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