Name: investigating social cognition in infants and adults using dense array electroencephalography (deeg)
Uploaded: 2011-06-27T14:00:00
Duration: 12 min 48 s
Description: Watch this Scientific Journal Video about Investigating Social Cognition in Infants and Adults Using Dense Array Electroencephalography dEEG at JoVE.com

الصانع من صافي الاستشعار جيوديسي هو الجيوديسية الكهربائية ، وشركة (EGI). للحصول على معلومات الاتصال ، يرجى زيارة <a href="http://www.egi.com/company">http://www.egi.com/company</a> .

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الإعلان عن أي تضارب في المصالح.

وHydrocel صافي الاستشعار من جيوديسي EGI يشكل طريقة غير الغازية وسهلة لتقديم طلب الحصول على بيانات من كل من د EEG الكبار والمشاركين الرضع. يجمع بين هذه التكنولوجيا عالية الدقة الزمنية والمكانية مع زيادة فرصة للتنقل ، مما يجعلها مثالية للاستخدام في نماذج سلوكية معقدة للتحقيق في الأنشطة المعرفية التي يمكن أن تنعكس فقط في التغييرات الطفيفة في النشاط الكهربائي. يعطى اهتماما متزايدا في التحقيق في تنمية الإدراك الرضع والندرة النسبية للتقنيات تصوير الدماغ مناسبة للاستخدام في عدد الرضع ، واستخدام HCGSN من المرجح أن يزداد ، مما يؤدي بنا إلى فهم أعمق للمعرفة الرضع.

investigating social cognition in infants and adults using dense array electroencephalography (deeg)

Dense array electroencephalography (dEEG), which provides a non-invasive window for measuring brain activity and a temporal resolution unsurpassed by any other current brain imaging technology1,2, is being used increasingly in the study of social cognitive functioning in infants and adults. While dEEG is enabling researchers to examine brain activity patterns with unprecedented levels of sensitivity, conventional EEG recording systems continue to face certain limitations, including 1) poor spatial resolution and source localization3,4,2) the physical discomfort for test subjects of enduring the individual application of numerous electrodes to the surface of the scalp, and 3) the complexity for researchers of learning to use multiple software packages to collect and process data. Here we present an overview of an established methodology that represents a significant improvement on conventional methodologies for studying EEG in infants and adults. Although several analytical software techniques can be used to establish indirect indices of source localization to improve the spatial resolution of dEEG, the HydroCel Geodesic Sensor Net (HCGSN) by Electrical Geodesics, Inc. (EGI), a dense sensory array that maintains equal distances among adjacent recording electrodes on all surfaces of the scalp, further enhances spatial resolution4,5,6 compared to standard dEEG systems. The sponge-based HCGSN can be applied rapidly and without scalp abrasion, making it ideal for use with adults7,8, children9,10,11, and infants12, in both research and clinical4,5,6,13,14,15 settings. This feature allows for considerable cost and time savings by decreasing the average net application time compared to other dEEG systems. Moreover, the HCGSN includes unified, seamless software applications for all phases of data, greatly simplifying the collection, processing, and analysis of dEEG data.
The HCGSN features a low-profile electrode pedestal, which, when filled with electrolyte solution, creates a sealed microenvironment and an electrode-scalp interface. In all Geodesic dEEG systems, EEG sensors detect changes in voltage originating from the participant's scalp, along with a small amount of electrical noise originating from the room environment. Electrical signals from all sensors of the Geodesic sensor net are received simultaneously by the amplifier, where they are automatically processed, packaged, and sent to the data-acquisition computer (DAC). Once received by the DAC, scalp electrical activity can be isolated from artifacts for analysis using the filtering and artifact detection tools included in the EGI software. Typically, the HCGSN can be used continuously for only up to two hours because the electrolyte solution dries out over time, gradually decreasing the quality of the scalp-electrode interface.
In the Parent-Infant Research Lab at the University of Toronto, we are using dEEG to study social cognitive processes including memory, emotion, goals, intentionality, anticipation, and executive functioning in both adult and infant participants.

Watch this Scientific Journal Video about Investigating Social Cognition in Infants and Adults Using Dense Array Electroencephalography dEEG at JoVE.com

Investigating Social Cognition in Infants and Adults Using Dense Array Electroencephalography dEEG

وتستخدم مجموعة كثيفة تخطيط كهربية الدماغ بصورة متزايدة لدراسة الوظائف المعرفية الاجتماعية لدى الرضع والبالغين. هنا نقدم منهجية تثبت ذلك يمثل تحسنا كبيرا عن المنهجيات التقليدية لدراسة التخطيط الدماغي عند الأطفال والبالغين.

التحقيق في الإدراك الاجتماعي في الرضع والبالغين باستخدام تخطيط كهربية الدماغ الكثيفة صفيف ( د EEG)

Dense array electroencephalography (dEEG), which provides a non-invasive window for measuring brain activity and a temporal resolution unsurpassed by any ...

Research

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Neuroscience

Investigating Social Cognition in Infants and Adults Using Dense Array Electroencephalography (dEEG)

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