Periventricular leukomalacia specifically affects cortical MEG response to biological motion
- 10 January 2006
- journal article
- research article
- Published by Wiley in Annals of Neurology
- Vol. 59 (2), 415-419
- https://doi.org/10.1002/ana.20762
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 2006Keywords
Funding Information
- German Research Foundation (KR 1316/5-P, SFB55O, C6)
- Medical School of Eberhard-Karls-Universität Tübingen
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