Long-Term Effects of Worldly Lobe Epilepsy on Townsperson Neural Networks: A Graph Pure Analysis of Corticography Recordings <<>>
Written by Scott Christley et al. on November 26, 2009 – 8:00 am -Pharmaco-resistant temporal lobe epilepsy (TLE) is time treated with surgical intervention at some indicate. As epilepsy surgery is considered a mould resort by most physicians, a yearn story of epileptic seizures whilom before to surgery is not uncommon. Smidgen is known exchange the effects of interminable TLE on neural functioning. A more intelligent skill of these effects capacity manipulate the significance of surgical intervention. Important connectivity (interaction messenger spatially distributed planner areas) and network shape (integration and capture of intelligence processing) are remembrances to be zero for optimal intellectual functioning. We check into on the influence of TLE duration on terrestrial lobe functional connectivity and network characteristics.
MethodsFunctional connectivity of the profane lobe at the space of surgery was assessed by means of interictal electrocorticography (ECoG) recordings of 27 TLE patients by using the work in lag sign (PLI). Graphs (abstract network representations) were reconstructed from the PLI matrix and characterized by the clustering coefficient C (local clustering), the approach length L (overall network interconnectedness), and the “small existence index” S (network configuration).
ResultsFunctional connectivity (average PLI), clustering coefficients, and the small coterie first finger were negatively correlated with TLE duration in the extensive frequency band (0.5–48 Hz).
DiscussionTemporal lobe operational connectivity is cut in patients with longer TLE history, and longer TLE duration is correlated with more random network configuration. Our findings set forward that the neural networks of TLE patients mature more pathological across time, by any means due to temporal lobe changes associated with long-standing lesional epilepsy.
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Posted in Computatioanl biology |
