Blar i Faculty of Psychology på forfatter "Grüner, Renate"

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    • Default-mode network functional connectivity is closely related to metabolic activity 

      Passow, Susanne; Specht, Karsten; Adamsen, Tom Christian; Biermann, Martin; Brekke, Njål; Craven, Alexander R.; Ersland, Lars; Grüner, Renate; Kleven-Madsen, Nina; Kvernenes, Ole Heine; Schwarzlmüller, Thomas; Olesen, Rasmus Aamand; Hugdahl, Kenneth (Peer reviewed; Journal article, 2015-06)
      Over the last decade, the brain's default-mode network (DMN) and its function has attracted a lot of attention in the field of neuroscience. However, the exact underlying mechanisms of DMN functional connectivity, or more ...

    • Dynamic up- and down-regulation of thedefault (DMN) and extrinsic (EMN) modenetworks during alternating task-on and task-offperiods 

      Hugdahl, Kenneth; Kazimierczak, Katarzyna Anna; Beresniewicz, Justyna; Kompus, Kristiina; Westerhausen, René; Ersland, Lars; Grüner, Renate; Specht, Karsten (Peer reviewed; Journal article, 2019)
      Using fMRI, Hugdahl et al. (2015) reported the existence of a general-domain cortical network during active task-processing which was non-specific to the cognitive task being processed. They labelled this network the ...

    • The effects of alcohol intoxication on neuronal activation at different levels of cognitive load 

      Gundersen, Hilde; Grüner, Renate; Specht, Karsten; Hugdahl, Kenneth (Peer reviewed; Journal article, 2008-08-22)
      The aim of this study was to investigate how alcohol intoxication at two blood alcohol concentrations (BAC) affected neuronal activation during increasing levels of cognitive load. For this purpose we used functional ...

    • Multi-vendor standardized sequence for edited magnetic resonance spectroscopy 

      Saleh, Muhammad G.; Rimbault, Daniel; Mikkelsen, Mark; Oeltzschner, Georg; Wang, Anna M; Jiang, Dengrong; Alhamud, Ali; Near, Jamie; Schär, Michael; Noeske, Ralph; Murdoch, James B; Ersland, Lars; Craven, Alexander R.; Dwyer, Gerard Eric; Grüner, Renate; Pan, Li; Ahn, Sinyeob; Edden, Richard A.E. (Peer reviewed; Journal article, 2019)
      Spectral editing allows direct measurement of low-concentration metabolites, such as GABA, glutathione (GSH) and lactate (Lac), relevant for understanding brain (patho)physiology. The most widely used spectral editing ...

    • No Effects of Anodal tDCS on Local GABA and Glx Levels in the Left Posterior Superior Temporal Gyrus 

      Dwyer, Gerard Eric; Craven, Alexander R.; Hirnstein, Marco; Kompus, Kristiina; Assmus, Jörg; Ersland, Lars; Hugdahl, Kenneth; Grüner, Renate (Peer reviewed; Journal article, 2019-01-08)
      A number of studies investigating the biological effects of transcranial direct current stimulation (tDCS) using magnetic resonance spectroscopy (MRS) have found that it may affect local levels of γ-aminobutyric acid (GABA), ...

    • Similarities and differences between intermittent and continuous resting-state fMRI 

      Beresniewicz, Justyna; Riemer, Frank; Kazimierczak, Katarzyna Anna; Ersland, Lars; Craven, Alexander R.; Hugdahl, Kenneth Jan; Grüner, Renate (Journal article; Peer reviewed, 2023)
      Introduction: Functional Magnetic Resonance Imaging (fMRI) block-design experiments typically include active ON-blocks with presentation of cognitive tasks which are contrasted with OFF- blocks with no tasks presented. ...