EEG ANALYSIS OF REAL AND IMAGINARY ARM MOVEMENTS BY SPECTRAL COHERENCE

Gursel Ozmen, Nurhan

doi:10.17482/uumfd.793775

EEG ANALYSIS OF REAL AND IMAGINARY ARM MOVEMENTS BY SPECTRAL COHERENCE

Nurhan GÜRSEL ÖZMEN (Karadeniz Teknik Üniversitesi, Makina Mühendisliği Bölümü, Trabzon, Türkiye)

Uludağ Üniversitesi Mühendislik Fakültesi Dergisi

3 1

Yıl: 2021 Cilt: 26 Sayı: 1 Sayfa Aralığı: 109 - 126 Metin Dili: İngilizce DOI: 10.17482/uumfd.793775 İndeks Tarihi: 29-07-2022

EEG ANALYSIS OF REAL AND IMAGINARY ARM MOVEMENTS BY SPECTRAL COHERENCE

Öz:

Revealing the information between similar patterns of brain for a real motor task and itsimaginary equivalent can be means to clarify movement intentions and help to improve Brain ComputerInterfaces (BCI)s. This paper uses spectral coherence to assess the functional interactions between neuralregions engaged in a real and an imagined arm movement task. Magnitude squared coherence values werecalculated for two specific bands of Electroencephalogram (EEG) that are 8–12 Hz alpha band and 13–20Hz beta for 48 channels from selected regions of interest (ROIs). The coherence values are transferred intosurface maps. We try to explain how motor cognition in these regions are relevant with the literature. Themaximum coherence is observed between the channels in the same hemisphere and surrounding closestchannels located vertically and horizontally based on the 10-20 electrode placement.Our results that the supplementary motor area, the premotor, prefrontal, primary motor cortex and theparietal cortex play a role in facilitating real and imaginary motor movements, are in good accordance withthe previous studies. Further research can be put on spectral coherence patterns which would be a possiblemeans for prosthetic-interactive BCI systems, interactive multimedia applications, and emerging EEGbased biometric recognition areas.

Anahtar Kelime: EEG Real and imaginary arm movements Spectral coherence BCI Motor task classification

Gerçek ve Hayali Kol Hareketlerine ait EEG verilerinin Spektral Koherens Yöntemiyle Analizi

Öz:

Gerçek bir motor görev ve onun hayal edilmesi arasındaki benzer aktivasyon örüntülerinin tanımlanması, beyindeki hareket niyet noktalarının tespit edilmesine ve Beyin Bilgisayar Arayüzlerinin (BBA) geliştirilmesine yardımcı olabilir. Bu çalışmada, gerçek ve hayali bir kol hareketi görevi yapan nöral bölgeler arasındaki fonksiyonel etkileşimler, spektral koherens yöntemi ile değerlendirilmiştir. Çift kat güçlendirilmiş koherens değerleri, tipik alfa (8-12 Hz) ve beta (13-20 Hz) frekans bant aralığında seçilen ilişkili bölgedeki (İB) 48 farklı Elektroensefalogram (EEG) kanalı için hesaplanmıştır. Farklı görevler için hesaplanan koherens değerleri, yüzey haritalarına dönüştürülmüştür. Bu bölgelerdeki motor biliş anlayışımızın sağ ve sol kol ile ilgili literatürden elde edilen bulgularla nasıl ilişkili olduğu açıklanmaya çalışılmıştır. Aynı yarımküredeki kanallar ile 10-20 elektrot yerleşimi temelinde dikey ve yatay olarak yerleştirilmiş en yakın kanallar arasında maksimum tutarlılığın gözlendiği gösterilmiştir. Çalışmamızın sonuçları, literatürde yer alan tamamlayıcı motor alanının, premotor, prefrontal ve primer motor kortekslerinin ve parietal korteksin gerçek ve hayali motor hareketlerini kolaylaştırmada rol oynadığı bulguları ile uyumludur. Çalışmanın sonuçları, spektral tutarlılık modellerinin protez-etkileşimli BBA sistemleri, etkileşimli multimedya uygulamaları ve ortaya çıkan EEG tabanlı biyometrik tanıma alanları için olası bir araç olabileceğini göstermektedir.

Anahtar Kelime:

Belge Türü: Makale Makale Türü: Araştırma Makalesi Erişim Türü: Erişime Açık

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APA	Gursel Ozmen N (2021). EEG ANALYSIS OF REAL AND IMAGINARY ARM MOVEMENTS BY SPECTRAL COHERENCE. , 109 - 126. 10.17482/uumfd.793775
Chicago	Gursel Ozmen Nurhan EEG ANALYSIS OF REAL AND IMAGINARY ARM MOVEMENTS BY SPECTRAL COHERENCE. (2021): 109 - 126. 10.17482/uumfd.793775
MLA	Gursel Ozmen Nurhan EEG ANALYSIS OF REAL AND IMAGINARY ARM MOVEMENTS BY SPECTRAL COHERENCE. , 2021, ss.109 - 126. 10.17482/uumfd.793775
AMA	Gursel Ozmen N EEG ANALYSIS OF REAL AND IMAGINARY ARM MOVEMENTS BY SPECTRAL COHERENCE. . 2021; 109 - 126. 10.17482/uumfd.793775
Vancouver	Gursel Ozmen N EEG ANALYSIS OF REAL AND IMAGINARY ARM MOVEMENTS BY SPECTRAL COHERENCE. . 2021; 109 - 126. 10.17482/uumfd.793775
IEEE	Gursel Ozmen N "EEG ANALYSIS OF REAL AND IMAGINARY ARM MOVEMENTS BY SPECTRAL COHERENCE." , ss.109 - 126, 2021. 10.17482/uumfd.793775
ISNAD	Gursel Ozmen, Nurhan. "EEG ANALYSIS OF REAL AND IMAGINARY ARM MOVEMENTS BY SPECTRAL COHERENCE". (2021), 109-126. https://doi.org/10.17482/uumfd.793775

APA	Gursel Ozmen N (2021). EEG ANALYSIS OF REAL AND IMAGINARY ARM MOVEMENTS BY SPECTRAL COHERENCE. Uludağ Üniversitesi Mühendislik Fakültesi Dergisi, 26(1), 109 - 126. 10.17482/uumfd.793775
Chicago	Gursel Ozmen Nurhan EEG ANALYSIS OF REAL AND IMAGINARY ARM MOVEMENTS BY SPECTRAL COHERENCE. Uludağ Üniversitesi Mühendislik Fakültesi Dergisi 26, no.1 (2021): 109 - 126. 10.17482/uumfd.793775
MLA	Gursel Ozmen Nurhan EEG ANALYSIS OF REAL AND IMAGINARY ARM MOVEMENTS BY SPECTRAL COHERENCE. Uludağ Üniversitesi Mühendislik Fakültesi Dergisi, vol.26, no.1, 2021, ss.109 - 126. 10.17482/uumfd.793775
AMA	Gursel Ozmen N EEG ANALYSIS OF REAL AND IMAGINARY ARM MOVEMENTS BY SPECTRAL COHERENCE. Uludağ Üniversitesi Mühendislik Fakültesi Dergisi. 2021; 26(1): 109 - 126. 10.17482/uumfd.793775
Vancouver	Gursel Ozmen N EEG ANALYSIS OF REAL AND IMAGINARY ARM MOVEMENTS BY SPECTRAL COHERENCE. Uludağ Üniversitesi Mühendislik Fakültesi Dergisi. 2021; 26(1): 109 - 126. 10.17482/uumfd.793775
IEEE	Gursel Ozmen N "EEG ANALYSIS OF REAL AND IMAGINARY ARM MOVEMENTS BY SPECTRAL COHERENCE." Uludağ Üniversitesi Mühendislik Fakültesi Dergisi, 26, ss.109 - 126, 2021. 10.17482/uumfd.793775
ISNAD	Gursel Ozmen, Nurhan. "EEG ANALYSIS OF REAL AND IMAGINARY ARM MOVEMENTS BY SPECTRAL COHERENCE". Uludağ Üniversitesi Mühendislik Fakültesi Dergisi 26/1 (2021), 109-126. https://doi.org/10.17482/uumfd.793775