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Missingness in fMRI Studies: Multiple Imputation
Limited imaging coverage of the brain and susceptibility artifact contributes to missing data in functional imaging studies. Multiple imputation is one solution for dealing with missing data. We demonstrate in a recent Neuroimage manuscript the considerable benefit of using multiple imputation in functional imaging studies. There was a 35% increase in the number of voxels…
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Visual System Activity When Listening to Speech: Distracting or Helpful?
Aging is often associated with increased distractibility that may arise from a failure to adequately suppress the processing of irrelevant sensory information. In our recent Cerebral Cortex paper, we show that decreasing word intelligibility was associated with increasing visual cortex activity in younger, middle-aged, and older adults. In addition, age was related visual cortex activity:…
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Our Science E-Letter on LC Imaging
A commentary about the questionable nature of locus coeruleus (LC) findings from fMRI studies was recently published in the journal Science, as well as replies from the authors who published the questioned LC findings. While this discussion is important to help move forward our understanding of the LC and it’s modulatory role in humans, we…