The phase analysis of ongoing EEG oscillations under face/object perception

Guan Gu, Yuan Yang, Yisheng Zhu, Yihong Qiu*

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

Event-related potentials (ERPs) analysis has been widely used in the cognitive studies due to its good performance in reflecting the time-locked stimulus-related brain activities. However, recent studies have found that the phase coherence of ongoing EEG oscillations is also related to stimulus-related brain activities and could reveal some information (e.g. phase-locked modulation in time-frequency domain) that ERPs could not provide. Here, we used inter-trail phase coherence(ITPC) to analyze the ongoing EEG oscillations under face/object stimuli, which aimed to explore the influence of face/object stimuli on EEG oscillations at various frequency bands (alpha, beta and low frequency gamma). Our preliminary results showed that (1) alpha band has relatively high phase synchronization in the time window of P1-N170-P2 under face/object stimuli; (2) EEG for face stimuli showed higher phase synchronization than object did in the time window of 80-350 ms in alpha band; (3) in low frequency gamma band, faces evoked relatively higher phase synchronization around 170ms than objects did. These results indicated that (1) ITPC, the measure of EEG phase synchronization, could be effectively used in face/object perception to provide oscillatory phase information; (2) the modulation of ITPC value in the alpha band might be more suitable to investigate the face preference EEG activities and locate the time range of the early face perception compared with ERPs; (3) the difference between face and object processing could be reflected in the low frequency gamma band via ITPC values.

Original languageEnglish (US)
Title of host publicationProceedings - 2010 3rd International Conference on Biomedical Engineering and Informatics, BMEI 2010
Pages1063-1066
Number of pages4
Volume3
DOIs
StatePublished - Dec 1 2010
Event3rd International Conference on BioMedical Engineering and Informatics, BMEI 2010 - Yantai, China
Duration: Oct 16 2010Oct 18 2010

Other

Other3rd International Conference on BioMedical Engineering and Informatics, BMEI 2010
CountryChina
CityYantai
Period10/16/1010/18/10

Fingerprint

Electroencephalography
Synchronization
Evoked Potentials
Brain
Modulation
Electroencephalography Phase Synchronization
Bioelectric potentials
Frequency bands
Processing

Keywords

  • Electroencephalography
  • Event-related potentials
  • Face perception
  • Inter-trial phase coherence
  • Object perception

ASJC Scopus subject areas

  • Biomedical Engineering
  • Health Informatics
  • Health Information Management

Cite this

Gu, G., Yang, Y., Zhu, Y., & Qiu, Y. (2010). The phase analysis of ongoing EEG oscillations under face/object perception. In Proceedings - 2010 3rd International Conference on Biomedical Engineering and Informatics, BMEI 2010 (Vol. 3, pp. 1063-1066). [5640542] https://doi.org/10.1109/BMEI.2010.5640542
Gu, Guan ; Yang, Yuan ; Zhu, Yisheng ; Qiu, Yihong. / The phase analysis of ongoing EEG oscillations under face/object perception. Proceedings - 2010 3rd International Conference on Biomedical Engineering and Informatics, BMEI 2010. Vol. 3 2010. pp. 1063-1066
@inproceedings{39798a38f32a4b0986ccfb5e39afda2b,
title = "The phase analysis of ongoing EEG oscillations under face/object perception",
abstract = "Event-related potentials (ERPs) analysis has been widely used in the cognitive studies due to its good performance in reflecting the time-locked stimulus-related brain activities. However, recent studies have found that the phase coherence of ongoing EEG oscillations is also related to stimulus-related brain activities and could reveal some information (e.g. phase-locked modulation in time-frequency domain) that ERPs could not provide. Here, we used inter-trail phase coherence(ITPC) to analyze the ongoing EEG oscillations under face/object stimuli, which aimed to explore the influence of face/object stimuli on EEG oscillations at various frequency bands (alpha, beta and low frequency gamma). Our preliminary results showed that (1) alpha band has relatively high phase synchronization in the time window of P1-N170-P2 under face/object stimuli; (2) EEG for face stimuli showed higher phase synchronization than object did in the time window of 80-350 ms in alpha band; (3) in low frequency gamma band, faces evoked relatively higher phase synchronization around 170ms than objects did. These results indicated that (1) ITPC, the measure of EEG phase synchronization, could be effectively used in face/object perception to provide oscillatory phase information; (2) the modulation of ITPC value in the alpha band might be more suitable to investigate the face preference EEG activities and locate the time range of the early face perception compared with ERPs; (3) the difference between face and object processing could be reflected in the low frequency gamma band via ITPC values.",
keywords = "Electroencephalography, Event-related potentials, Face perception, Inter-trial phase coherence, Object perception",
author = "Guan Gu and Yuan Yang and Yisheng Zhu and Yihong Qiu",
year = "2010",
month = "12",
day = "1",
doi = "10.1109/BMEI.2010.5640542",
language = "English (US)",
isbn = "9781424464968",
volume = "3",
pages = "1063--1066",
booktitle = "Proceedings - 2010 3rd International Conference on Biomedical Engineering and Informatics, BMEI 2010",

}

Gu, G, Yang, Y, Zhu, Y & Qiu, Y 2010, The phase analysis of ongoing EEG oscillations under face/object perception. in Proceedings - 2010 3rd International Conference on Biomedical Engineering and Informatics, BMEI 2010. vol. 3, 5640542, pp. 1063-1066, 3rd International Conference on BioMedical Engineering and Informatics, BMEI 2010, Yantai, China, 10/16/10. https://doi.org/10.1109/BMEI.2010.5640542

The phase analysis of ongoing EEG oscillations under face/object perception. / Gu, Guan; Yang, Yuan; Zhu, Yisheng; Qiu, Yihong.

Proceedings - 2010 3rd International Conference on Biomedical Engineering and Informatics, BMEI 2010. Vol. 3 2010. p. 1063-1066 5640542.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

TY - GEN

T1 - The phase analysis of ongoing EEG oscillations under face/object perception

AU - Gu, Guan

AU - Yang, Yuan

AU - Zhu, Yisheng

AU - Qiu, Yihong

PY - 2010/12/1

Y1 - 2010/12/1

N2 - Event-related potentials (ERPs) analysis has been widely used in the cognitive studies due to its good performance in reflecting the time-locked stimulus-related brain activities. However, recent studies have found that the phase coherence of ongoing EEG oscillations is also related to stimulus-related brain activities and could reveal some information (e.g. phase-locked modulation in time-frequency domain) that ERPs could not provide. Here, we used inter-trail phase coherence(ITPC) to analyze the ongoing EEG oscillations under face/object stimuli, which aimed to explore the influence of face/object stimuli on EEG oscillations at various frequency bands (alpha, beta and low frequency gamma). Our preliminary results showed that (1) alpha band has relatively high phase synchronization in the time window of P1-N170-P2 under face/object stimuli; (2) EEG for face stimuli showed higher phase synchronization than object did in the time window of 80-350 ms in alpha band; (3) in low frequency gamma band, faces evoked relatively higher phase synchronization around 170ms than objects did. These results indicated that (1) ITPC, the measure of EEG phase synchronization, could be effectively used in face/object perception to provide oscillatory phase information; (2) the modulation of ITPC value in the alpha band might be more suitable to investigate the face preference EEG activities and locate the time range of the early face perception compared with ERPs; (3) the difference between face and object processing could be reflected in the low frequency gamma band via ITPC values.

AB - Event-related potentials (ERPs) analysis has been widely used in the cognitive studies due to its good performance in reflecting the time-locked stimulus-related brain activities. However, recent studies have found that the phase coherence of ongoing EEG oscillations is also related to stimulus-related brain activities and could reveal some information (e.g. phase-locked modulation in time-frequency domain) that ERPs could not provide. Here, we used inter-trail phase coherence(ITPC) to analyze the ongoing EEG oscillations under face/object stimuli, which aimed to explore the influence of face/object stimuli on EEG oscillations at various frequency bands (alpha, beta and low frequency gamma). Our preliminary results showed that (1) alpha band has relatively high phase synchronization in the time window of P1-N170-P2 under face/object stimuli; (2) EEG for face stimuli showed higher phase synchronization than object did in the time window of 80-350 ms in alpha band; (3) in low frequency gamma band, faces evoked relatively higher phase synchronization around 170ms than objects did. These results indicated that (1) ITPC, the measure of EEG phase synchronization, could be effectively used in face/object perception to provide oscillatory phase information; (2) the modulation of ITPC value in the alpha band might be more suitable to investigate the face preference EEG activities and locate the time range of the early face perception compared with ERPs; (3) the difference between face and object processing could be reflected in the low frequency gamma band via ITPC values.

KW - Electroencephalography

KW - Event-related potentials

KW - Face perception

KW - Inter-trial phase coherence

KW - Object perception

UR - http://www.scopus.com/inward/record.url?scp=78650631075&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=78650631075&partnerID=8YFLogxK

U2 - 10.1109/BMEI.2010.5640542

DO - 10.1109/BMEI.2010.5640542

M3 - Conference contribution

SN - 9781424464968

VL - 3

SP - 1063

EP - 1066

BT - Proceedings - 2010 3rd International Conference on Biomedical Engineering and Informatics, BMEI 2010

ER -

Gu G, Yang Y, Zhu Y, Qiu Y. The phase analysis of ongoing EEG oscillations under face/object perception. In Proceedings - 2010 3rd International Conference on Biomedical Engineering and Informatics, BMEI 2010. Vol. 3. 2010. p. 1063-1066. 5640542 https://doi.org/10.1109/BMEI.2010.5640542