Impact of Working Memory Load on fMRI Resting State Pattern in Subsequent Resting Phases
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چکیده
منابع مشابه
Impact of Working Memory Load on fMRI Resting State Pattern in Subsequent Resting Phases
BACKGROUND The default-mode network (DMN) is a functional network with increasing relevance for psychiatric research, characterized by increased activation at rest and decreased activation during task performance. The degree of DMN deactivation during a cognitively demanding task depends on its difficulty. However, the relation of hemodynamic responses in the resting phase after a preceding cog...
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BACKGROUND During the last years, functional magnetic resonance imaging (fMRI) of the brain has been introduced as a new tool to measure consciousness, both in a clinical setting and in a basic neurocognitive research. Moreover, advanced mathematical methods and theories have arrived the field of fMRI (e.g. computational neuroimaging), and functional and structural brain connectivity can now be...
متن کاملFunctional Connectivity during Memory Consolidation: A Resting-State fMRI Study
C-W. Li, K-H. Chen, T-L. Chou, K-C. Liang, Y-C. Yu, C-W. Wu, and J-H. Chen Department of Electrical Engineering, National Taiwan University, Taipei, Taiwan, Taiwan, Department of Psychology, National Taiwan University, Taipei, Taiwan, Center for Neurobiology and Cognitive Science, National Taiwan University, Taipei, Taiwan Introduction Memory consolidation is a brain process through which a sho...
متن کاملBrain connectivity during resting state and subsequent working memory task predicts behavioural performance.
Brain regions simultaneously activated during any cognitive process are functionally connected, forming large-scale networks. These functional networks can be examined during active conditions [i.e., task-functional magnetic resonance imaging (fMRI)] and also in passive states (resting-fMRI), where the default mode network (DMN) is the most widely investigated system. The role of the DMN remain...
متن کاملResting-State Neuronal Oscillatory Correlates of Working Memory Performance
PURPOSE Working memory (WM) represents the brain's ability to maintain information in a readily available state for short periods of time. This study examines the resting-state cortical activity patterns that are most associated with performance on a difficult working-memory task. METHODS Magnetoencephalographic (MEG) band-passed (delta/theta (1-7 Hz), alpha (8-13 Hz), beta (14-30 Hz)) and se...
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ژورنال
عنوان ژورنال: PLoS ONE
سال: 2009
ISSN: 1932-6203
DOI: 10.1371/journal.pone.0007198