Event-related brain dynamics.
Event-related potentials (ERPs) provide evidence of a direct link between cognitive events and brain electrical activity in a wide range of cognitive paradigms. It has generally been held that an ERP is the result of a set of discrete stimulus-evoked brain events. A recent study, however, provides new evidence to suggest that some ERP components might be generated by stimulus-induced changes in ongoing brain dynamics. This is consistent with views emerging from several neuroscientific fields, suggesting that phase synchronization of ongoing rhythms across different spatio-temporal scales mediates the functional integration necessary to perform higher cognitive tasks.
Wellcome Department of Imaging Neuroscience, University College London, 12 Queen Square, London WC1N 3BG, UK. wpenny@fil.ion.ucl.ac.uk
Will D
WD
Penny
Stephan J
SJ
Kiebel
James M
JM
Kilner
Mick D
MD
Rugg
D000818:Animals; D001683:Biological Clocks / Q000502:physiology; D001921:Brain / Q000166:cytology / Q000502:physiology*; D003071:Cognition / Q000502:physiology*; D005071:Evoked Potentials / Q000502:physiology*; D006801:Humans; D009415:Nerve Net / Q000166:cytology / Q000502:physiology*; D009434:Neural Pathways / Q000166:cytology / Q000502:physiology*; D009474:Neurons / Q000502:physiology*; D017711:Nonlinear Dynamics; D010465:Perception / Q000502:physiology*