Publications by authors named "Malene Abell"
EEG studies of wakeful rest have shown that there are brief periods in which global electrical brain activity on the scalp remains semi-stable (so-called microstates). Topographical analyses of this activity have revealed that much of the variance is explained by four distinct microstates that occur in a repetitive sequence. A recent fMRI study showed that these four microstates correlated with four known functional systems, each of which is activated by specific cognitive functions and sensory inputs.
View Article and Find Full Text PDFIntrinsically driven neural activity generated at rest exhibits complex spatiotemporal dynamics characterized by patterns of synchronization across distant brain regions. Mounting evidence suggests that these patterns exhibit fluctuations and nonstationarity at multiple time scales. Resting-state electroencephalographic (EEG) recordings were examined in 12 young adults for changes in synchronization patterns on a fast time scale in the range of tens to hundreds of milliseconds.
View Article and Find Full Text PDFPrimary Objectives: To investigate the measurement properties of the Orientation Log (O-Log) and a hybrid scale using Rasch analysis techniques and to explore the relations between the items of the 2 scales and the latent linear construct modeled in the Rasch analysis.
Design: Calibration of data collected weekly during inpatient rehabilitation.
Participants: Ninety patients admitted for rehabilitation after traumatic brain injury.
Primary Objective: The Delirium Diagnostic Tool-Provisional (DDT-Pro) is a newly developed provisional diagnostic tool for delirium presented here. This study evaluated its accuracy and validity in a population of participants with acquired brain injury (ABI).
Research Design: Cross-sectional study.