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Autumn School 2008 - Magnetoencephalography
Singh, Krish (2008)
clipboard
mla
clipboard		 Singh K. "Autumn School 2008 - Magnetoencephalography.", timms video, Universität Tübingen (2008): https://timms.uni-tuebingen.de:443/tp/UT_20081016_001_autumnschool_0001. Accessed 04 Apr 2025.
apa
clipboard		 Singh, K. (2008). Autumn School 2008 - Magnetoencephalography. timms video: Universität Tübingen. Retrieved April 04, 2025 from the World Wide Web https://timms.uni-tuebingen.de:443/tp/UT_20081016_001_autumnschool_0001
harvard
clipboard		 Singh, K. (2008). Autumn School 2008 - Magnetoencephalography [Online video]. 16 October. Available at: https://timms.uni-tuebingen.de:443/tp/UT_20081016_001_autumnschool_0001 (Accessed: 4 April 2025).
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title: Autumn School 2008 - Magnetoencephalography
alt. title: Beamformer source-localisation of task-related oscillatory power changes and their relation to the haemodynamic response
creator: Singh, Krish (author)
subjects: Autumn School 2008, Magnetoencephalography, Neurosciences, Beamformer, Haemodynamic response, Functional Neuroimaging, fMRI (functional magnetic resonance imaging), BOLD (Blood Oxygen Level Dependency), ERS (Event Related Synchronisation), ERD (Event Related De-synchronization), SAM (Synthetic Aperture Magnetometry), Visual cortex, Singh, Krish, Universität Tübingen
description: Lecture of Prof. Krish Singh
abstract: In recent years many studies have used to BOLD response to characterize the cortical response to perceptual or cognitive tasks. The underlying model is that when an area of brain is differentially activated, increased oxygen consumption in that region leads to a local increase in oxygenated blood, which can be measured using MRI. At the same time, researchers using Electroencephalography (EEG), and its close relative Magnetoencephalography (MEG) have shown that when subjects are performing sensory or cognitive tasks, there are regional increases or decreases in electrical oscillatory power within the cortex. These increases or decreases in power are known as event-related synchronisation (ERS) and event-related desynchronisation (ERD) and occur within set frequency bands. Using MEG, with its enhanced spatial resolution compared to EEG, we can localize these power changes within the cortex. Despite the very different nature of the BOLD and ERS/ERD measures, there is now increasing evidence that regions of the cortex exhibiting task related haemodynamic changes, as measured with fMRI, also show task-related oscillatory power changes, as measured with MEG. In my talk I will discuss the relationship between BOLD and ERS/ERD, introduce MEG and its application to studies or ERS/ERD and describe some recent experimental results.
publisher: ZDV Universität Tübingen
contributors: ZDV Universität Tübingen (producer), Research Training Group - SFB 550, University of Tübingen (organizer)
creation date: 2008-10-16
dc type: image
localtype: video
identifier: UT_20081016_001_autumnschool_0001
language: eng
rights: Url: https://timmsstatic.uni-tuebingen.de/jtimms/TimmsDisclaimer.html?638793381391602160