EEG Alpha Power Is Modulated by Attentional Changes during Cognitive Tasks and Virtual Reality Immersion
المؤلفون المشاركون
Magosso, Elisa
De Crescenzio, Francesca
Ricci, Giulia
Piastra, Sergio
Ursino, Mauro
المصدر
Computational Intelligence and Neuroscience
العدد
المجلد 2019، العدد 2019 (31 ديسمبر/كانون الأول 2019)، ص ص. 1-18، 18ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2019-06-25
دولة النشر
مصر
عدد الصفحات
18
التخصصات الرئيسية
الملخص EN
Variations in alpha rhythm have a significant role in perception and attention.
Recently, alpha decrease has been associated with externally directed attention, especially in the visual domain, whereas alpha increase has been related to internal processing such as mental arithmetic.
However, the role of alpha oscillations and how the different components of a task (processing of external stimuli, internal manipulation/representation, and task demand) interact to affect alpha power are still unclear.
Here, we investigate how alpha power is differently modulated by attentional tasks depending both on task difficulty (less/more demanding task) and direction of attention (internal/external).
To this aim, we designed two experiments that differently manipulated these aspects.
Experiment 1, outside Virtual Reality (VR), involved two tasks both requiring internal and external attentional components (intake of visual items for their internal manipulation) but with different internal task demands (arithmetic vs.
reading).
Experiment 2 took advantage of the VR (mimicking an aircraft cabin interior) to manipulate attention direction: it included a condition of VR immersion only, characterized by visual external attention, and a condition of a purely mental arithmetic task during VR immersion, requiring neglect of sensory stimuli.
Results show that: (1) In line with previous studies, visual external attention caused a significant alpha decrease, especially in parieto-occipital regions; (2) Alpha decrease was significantly larger during the more demanding arithmetic task, when the task was driven by external visual stimuli; (3) Alpha dramatically increased during the purely mental task in VR immersion, whereby the external stimuli had no relation with the task.
Our results suggest that alpha power is crucial to isolate a subject from the environment, and move attention from external to internal cues.
Moreover, they emphasize that the emerging use of VR associated with EEG may have important implications to study brain rhythms and support the design of artificial systems.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Magosso, Elisa& De Crescenzio, Francesca& Ricci, Giulia& Piastra, Sergio& Ursino, Mauro. 2019. EEG Alpha Power Is Modulated by Attentional Changes during Cognitive Tasks and Virtual Reality Immersion. Computational Intelligence and Neuroscience،Vol. 2019, no. 2019, pp.1-18.
https://search.emarefa.net/detail/BIM-1129554
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Magosso, Elisa…[et al.]. EEG Alpha Power Is Modulated by Attentional Changes during Cognitive Tasks and Virtual Reality Immersion. Computational Intelligence and Neuroscience No. 2019 (2019), pp.1-18.
https://search.emarefa.net/detail/BIM-1129554
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Magosso, Elisa& De Crescenzio, Francesca& Ricci, Giulia& Piastra, Sergio& Ursino, Mauro. EEG Alpha Power Is Modulated by Attentional Changes during Cognitive Tasks and Virtual Reality Immersion. Computational Intelligence and Neuroscience. 2019. Vol. 2019, no. 2019, pp.1-18.
https://search.emarefa.net/detail/BIM-1129554
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1129554
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
تقوم هذه الخدمة بالتحقق من التشابه أو الانتحال في الأبحاث والمقالات العلمية والأطروحات الجامعية والكتب والأبحاث باللغة العربية، وتحديد درجة التشابه أو أصالة الأعمال البحثية وحماية ملكيتها الفكرية. تعرف اكثر