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Status: Unchecked ×Keyword: data quality ×Clear all

3 claims from 1 paper

1. Neuroscience › Functional Brain Connectivity Studies

   Data Quality Influences Observed Links Between Functional Connectivity and Behavior

   Siegel, Mitra, Laumann et al. · Cerebral Cortex · 2016

   Using Human Connectome Project data, the authors report that head motion correlates with many behavioural measures and may bias reported links between brain functional connectivity and behaviour.

   Unchecked3 claims
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   1. UncheckedIn Human Connectome Project data, 23 of 122 behavioural, demographic and physiological measures correlated with head motion during scanning.“Using data from the Human Connectome Project (HCP), we find that a surprising number of behavioral, demographic, and physiological measures (23 of 122), including fluid intelligence, reading ability, weight, and psychiatric diagnostic scales, correlate with head motion.”
   2. UncheckedIn Human Connectome Project data, the effects of head motion on functional connectivity look remarkably similar across people and across days within the same person.“We demonstrate that "trait" (across-subject) and "state" (across-day, within-subject) effects of motion on FC are remarkably similar in HCP data, suggesting that state effects of motion could potentially mimic trait correlates of behavior.”
   3. Unchecked“Next, we show that data cleaning strategies reduce the influence of head motion and substantially alter previously reported FC:behavior relationship.”