Dear colleagues, The deadline of the Special Issue on Cross-Frequency Coupling in Brain Networks: Methodological Challenges and Functional Implications in BioMed Research International has now been extended to Monday, 12 January 2015. Please note that while the Call for Papers still shows the old date, you will be able to submit a manuscript to the special issue until Monday, 12 January 2015. For more information on the special issue: http://www.hindawi.com/journals/bmri/si/897985/cfp/. To submit a manuscript, go to http://mts.hindawi.com/login/ and choose BIOMED RESEARCH INTERNATIONAL and then the section COMPUTATIONAL BIOLOGY where the special issue will appear. If you have any questions, please contact one of the organisers. We look forward to your contributions. Tjeerd Boonstra Ali Bahramisharif Andreas Daffertshofer Sylvain Baillet