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

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Hydrocel Геодезические Чистая датчика от EGI является неинвазивным и простым в применить метод получения г ЭЭГ данные из взрослой и детской участников. Эта технология сочетает в себе высокое временное и пространственное разрешение с более широкие возможности для мобильности, делая его идеальным для использования в сложных поведенческих парадигм для исследования познавательной деятельности, которые могут быть отражены только в тонкие изменения в электрической активности. Учитывая возрастающий интерес к исследованию развития познания младенческой и относительного дефицита методов визуализации мозга подходит для использования в детской населения, использование HCGSN, вероятно, увеличится, что приведет нас к более глубокому пониманию детского познания.

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

Плотные электроэнцефалография массиве все более широко используется для изучения социальных когнитивных функций у детей и взрослых. Здесь мы представляем создана методология, которая представляет собой значительное улучшение на обычных методик для изучения ЭЭГ у детей и взрослых.

Исследование социального познания у младенцев и взрослых Использование Плотные Электроэнцефалография Array ( Г ЭЭГ)

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

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Neuroscience

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

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