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@ARTICLE{Watrous:138493,
      author       = {Watrous, Andrew J and Deuker, Lorena and Fell, Juergen and
                      Axmacher, Nikolai},
      title        = {{P}hase-amplitude coupling supports phase coding in human
                      {EC}o{G}.},
      journal      = {eLife},
      volume       = {4},
      issn         = {2050-084X},
      address      = {Cambridge},
      publisher    = {eLife Sciences Publications},
      reportid     = {DZNE-2020-04815},
      pages        = {e07886},
      year         = {2015},
      abstract     = {Prior studies have shown that high-frequency activity (HFA)
                      is modulated by the phase of low-frequency activity. This
                      phenomenon of phase-amplitude coupling (PAC) is often
                      interpreted as reflecting phase coding of neural
                      representations, although evidence for this link is still
                      lacking in humans. Here, we show that PAC indeed supports
                      phase-dependent stimulus representations for categories. Six
                      patients with medication-resistant epilepsy viewed images of
                      faces, tools, houses, and scenes during simultaneous
                      acquisition of intracranial recordings. Analyzing 167
                      electrodes, we observed PAC at $43\%$ of electrodes. Further
                      inspection of PAC revealed that category specific HFA
                      modulations occurred at different phases and frequencies of
                      the underlying low-frequency rhythm, permitting decoding of
                      categorical information using the phase at which HFA events
                      occurred. These results provide evidence for categorical
                      phase-coded neural representations and are the first to show
                      that PAC coincides with phase-dependent coding in the human
                      brain.},
      keywords     = {Brain: physiology / Brain Waves / Drug Resistant Epilepsy:
                      physiopathology / Electrocorticography / Humans / Photic
                      Stimulation},
      cin          = {AG Axmacher},
      ddc          = {600},
      cid          = {I:(DE-2719)5000027},
      pnm          = {344 - Clinical and Health Care Research (POF3-344)},
      pid          = {G:(DE-HGF)POF3-344},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {pmid:26308582},
      pmc          = {pmc:PMC4579288},
      doi          = {10.7554/eLife.07886},
      url          = {https://pub.dzne.de/record/138493},
}