In the present paper we study synchronized activity in a neural network model whose dynamics is driven by an external activation.
For example, a study of scalp EEG in healthy subjects found evidence for synchronized activity between hand and foot areas during finger movements, and concluded that synchronization was occurring between distinct neuronal networks (Pfurtscheller et al., 2000).
In addition, synchronized activity of PV interneurons, wherein abnormalities were observed in GluN2C KO, is crucial to generation of gamma oscillations.
For example, epileptiform discharges are associated with bursts of neural ensembles with highly synchronized activity [14].
HEGCs thus have many paths along which to receive synchronized activity from normotopic granule cells and to transmit their own hyperactivity to both normotopic granule cells and CA3 pyramidal cells.
When large numbers of neurons show synchronized activity, the electric fields that they generate can be large enough to detect outside the skull, using electroencephalography (EEG) or magnetoencephalography (MEG).
Furthermore, a comparison between narrow band noise and a normative database revealed increased synchronized activity in the PCC and the beta and in the parahippocampal area for gamma.
For both increased synchronized activity could be found in the PCC (BA31) for pure tone tinnitus patients (see Fig 5; p<.05).
In the absence of PNU-120596, the mean open time of hippocampal α7* nAChRs is very short (∼100 µs, [54]) and therefore, only a highly synchronized activity of α7* nAChRs can be confidently detected in voltage-clamp whole-cell experiments.
More recently, neurons in monkey GP demonstrated synchronized activity with saccadic generation (Shin and Sommer, 2010).
Using high-density scalp electroencephalography, we examined how synchronized activity depends on visual stimulus information and on individual observer sensitivity.
