What You Expect Is What You Get? Potential Use of Contingent Negative Variation 
for Passive BCI Systems in Gaze-Based HCI

Ihme, K; Zander, TO

doi:10.1007/978-3-642-24571-8_57

What You Expect Is What You Get? Potential Use of Contingent Negative Variation for Passive BCI Systems in Gaze-Based HCI

Ihme, K., & Zander, T. (2011). What You Expect Is What You Get? Potential Use of Contingent Negative Variation for Passive BCI Systems in Gaze-Based HCI. In S., D’Mello, A., Graesser, B., Schuller, & J., martin (Eds.), Affective Computing and Intelligent Interaction (pp. 447-456). Berlin, Germany: Springer.

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アイテムのパーマリンク: https://hdl.handle.net/21.11116/0000-0001-F298-2 版のパーマリンク: https://hdl.handle.net/21.11116/0000-0001-F299-1

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Ihme, K, 著者
Zander, TO^{1, 2}, 著者

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1Department Empirical Inference, Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497795
2Max Planck Institute for Biological Cybernetics, Max Planck Society, Spemannstrasse 38, 72076 Tübingen, DE, ou_1497794

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要旨: When using eye movements for cursor control in human-computer interaction (HCI), it may be difficult to find an appropriate substitute for the click operation. Most approaches make use of dwell times. However, in this context the so-called Midas-Touch-Problem occurs which means that the system wrongly interprets fixations due to long processing times or spontaneous dwellings of the user as command. Lately it has been shown that brain-computer interface (BCI) input bears good prospects to overcome this problem using imagined hand movements to elicit a selection. The current approach tries to develop this idea further by exploring potential signals for the use in a passive BCI, which would have the advantage that the brain signals used as input are generated automatically without conscious effort of the user. To explore event-related potentials (ERPs) giving information about the user’s intention to select an object, 32-channel electroencephalography (EEG) was recorded from ten participants interacting with a dwell-time-based system. Comparing ERP signals during the dwell time with those occurring during fixations on a neutral cross hair, a sustained negative slow cortical potential at central electrode sites was revealed. This negativity might be a contingent negative variation (CNV) reflecting the participants’ anticipation of the upcoming selection. Offline classification suggests that the CNV is detectable in single trial (mean accuracy 74.9 %). In future, research on the CNV should be accomplished to ensure its stable occurence in human-computer interaction and render possible its use as a potential substitue for the click operation.

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日付: 出版: 2011-10

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識別子（DOI, ISBNなど）: DOI: 10.1007/978-3-642-24571-8_57

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出版物名: Affective Computing and Intelligent Interaction

種別: 会議論文集

著者・編者:
D’Mello, S, 編集者
Graesser, A, 編集者
Schuller, B, 編集者
martin, JC, 編集者

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出版社, 出版地: Berlin, Germany : Springer

ページ: - 巻号: - 通巻号: - 開始・終了ページ: 447 - 456 識別子（ISBN, ISSN, DOIなど）: ISBN: 978-3-642-24570-1

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出版物名: Lecture Notes in Computer Science

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ページ: - 巻号: 6975 通巻号: - 開始・終了ページ: - 識別子（ISBN, ISSN, DOIなど）: -

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