Periventricular leukomalacia specifically affects cortical MEG response to biological motion

Authors

  • Marina Pavlova PhD,

    Corresponding author
    1. Department of Paediatric Neurology and Child Development, Children's Hospital, University of Tübingen Medical School, Tübingen
    2. MEG-Center, Institute of Medical Psychology and Behavioral Neurobiology, University of Tübingen, Tübingen
    • Department of Paediatric Neurology and Child Development, Children's Hospital, University of Tübingen, Hoppe-Seyler-Strasse 1, D-72076, Tübingen, Germany
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  • Fabio Marconato PhD,

    1. Department of Paediatric Neurology and Child Development, Children's Hospital, University of Tübingen Medical School, Tübingen
    2. Department of General Psychology, University of Padova, Padova, Italy
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  • Alexander Sokolov PhD,

    1. Center for Neuroscience and Learning and Department of Psychiatry, University of Ulm Medical School, Ulm, Germany
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  • Christoph Braun PhD,

    1. MEG-Center, Institute of Medical Psychology and Behavioral Neurobiology, University of Tübingen, Tübingen
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  • Niels Birbaumer PhD,

    1. MEG-Center, Institute of Medical Psychology and Behavioral Neurobiology, University of Tübingen, Tübingen
    2. Center for Cognitive Neuroscience, University of Trento, Trento, Italy
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  • Ingeborg Krägeloh-Mann MD, PhD

    1. Department of Paediatric Neurology and Child Development, Children's Hospital, University of Tübingen Medical School, Tübingen
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Abstract

Objective

Periventricular leukomalacia (PVL) underlies most of the neurological morbidity including visual-perceptual deficits in survivors of premature birth. However, it is unknown whether and, if so, how PVL affects functional cortical activity.

Methods

Here, we assessed changes in the magnetoencephalographic (MEG) response to visual displays depicting human locomotion in adolescents who were born premature with magnetic resonance imaging signs of PVL.

Results

Dynamics of MEG activity parallel behavioral deficits. Early (140–170 milliseconds) brain activation over the right parietal cortex was weaker in patients compared with term-born controls.

Interpretation

This is the first evidence for stimulus-specific modulation of cortical activity by periventricular lesions providing new insights into the functional pathology of PVL. Ann Neurol 2006

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