RT Journal Article SR Electronic T1 Long-Distance Amplitude Correlations in the High Gamma Band Reveal Segregation and Integration within the Reading Network JF The Journal of Neuroscience JO J. Neurosci. FD Society for Neuroscience SP 6421 OP 6434 DO 10.1523/JNEUROSCI.4363-11.2012 VO 32 IS 19 A1 Vidal, Juan R. A1 Freyermuth, Samson A1 Jerbi, Karim A1 Hamamé, Carlos M. A1 Ossandon, Tomas A1 Bertrand, Olivier A1 Minotti, Lorella A1 Kahane, Philippe A1 Berthoz, Alain A1 Lachaux, Jean-Philippe YR 2012 UL http://www.jneurosci.org/content/32/19/6421.abstract AB Reading sentences involves a distributed network of brain regions acting in concert surrounding the left sylvian fissure. The mechanisms of neural communication underlying the extraction and integration of verbal information across subcomponents of this reading network are still largely unknown. We recorded intracranial EEG activity in 12 epileptic human patients performing natural sentence reading and analyzed long-range corticocortical interactions between local neural activations. During a simple task contrasting semantic, phonological, and purely visual processes, we found process-specific neural activity elicited at the single-trial level, characterized by energy increases in a broad gamma band (40–150 Hz). Correlation analysis between task-induced gamma-band activations revealed a selective fragmentation of the network into specialized subnetworks supporting sentence-level semantic analysis and phonological processing. We extend the implications of our results beyond reading, to propose that gamma-band amplitude correlations might constitute a fundamental mechanism for large-scale neural integration during high-level cognition.