Topic: phase-amplitude coupling

Object-based visual working memory relies critically on the fronto-temporal cortical network. Investigating interactions within this network is crucial for comprehending the neural mechanisms of goal-directed recall in memory. A delayed color recall task, wherein colors were associated with achromatic images of scenes and geometric drawings, was employed to examine interactions between the temporal and prefrontal cortex through high-density electrocorticography (ECoG) in two macaque monkeys. Regions with similar functionality were identified by clustering the time-varying signal of electrodes

Having a patient specific mapping of the eloquent cortex is crucial for patients undergoing resective surgery. Non-invasive neuroimaging modalities like magnetoencephalography (MEG) are increasingly used for pre-surgical mapping due to high temporal resolution. Phase-amplitude coupling (PAC), a form of cross-frequency coupling, involves the modulation of high-frequency amplitude by the phase of low-frequency oscillations. PAC observed during tasks reflect interactions between microscale and macroscale neural ensembles. The objective of this study was characterizing whether PAC differs during t

Food addiction is characterized by impulsive decision-making, compulsive food intake, and a loss of behavioral control toward highly palatable foods. Impulsivity has been described as a predictive vulnerability marker for addiction disorders. The ventral hippocampus (vHPC) to prelimbic medial prefrontal cortex (PL mPFC) pathway has been associated with impulsive operant responses towards highly palatable foods and food-motivated behaviors. However, the electrophysiological dynamics between these brain areas underlying impulsivity are not well understood.In the food addiction animal model, mice

Motor timing precision is believed to be influenced by the strength of phase-amplitude coupling between the alpha oscillation phase and beta activity power(ABC). While the accuracy and precision of time estimation and the precise timing of motor behavior are closely linked to overall cognitive function, the relationship between timing ability and theta-gamma coupling(TGC), which plays a crucial role in various cognitive processes, remains unclear. We hypothesized that TGC would reflect the accuracy of timing mechanisms, while ABC would serve as an indicator of temporal regularity. A total of t