The main finding of this study was that the coactivation of neuronal populations with different orientation preferences, as it occurs for plaid stimuli, led to the disruption of ongoing gamma synchronization.
In conscious rats, they produce an abnormal behavior associated with a peculiar brain state characterized by increased synchronization in ongoing γ (30 80 Hz) oscillations in the frontoparietal (sensorimotor) electrocorticogram (ECoG).
Moreover, the observed inter-regional gamma-band synchronizations appear to partake of an ongoing pattern of intra-regional synchronizations that recur at a frequency in the theta band.
They are evidence, however, of a strong association between inter-regional gamma-band synchronization and the phases of ongoing theta-band cortical rhythms.
Here we show that interbrain neural synchronizations can be seen as reflecting in different bands several aspects of the ongoing social interaction, such as interactional synchrony, anticipation of other's actions and co-regulation of turn-taking.
Synchronization measurement of non-stationary nonlinear data is an ongoing problem in the study of complex systems, e.g., neuroscience.
The ongoing rhythm of both intra-regional and inter-regional gamma-band synchronization is consistent with a theta rate of roughly 4 6 Hz (see Figure 5).
In addition to standard evoked responses, TMS may also trigger oscillatory activity (Paus et al. 2001; Fuggetta et al. 2005; Rosanova et al. 2009) or perturb ongoing rhythms (Rosanova et al. 2009), eliciting, e.g., event-related synchronization (ERS) or desynchronization (ERD) (Pfurtscheller and Lopes da Silva 1999) or more complicated phenomena.
Timing and carrier synchronization for multi-carrier SISO communication systems is still an ongoing topic of research, as evidenced by the large number of published papers.
PLVs were then calculated in the manner described above within each bin, producing an index of the amount of gamma-band phase synchronization between a pair of sources typical during a particular segment of ongoing theta oscillations in one of the analyzed sources.
