Motivation, emotion, and their inhibitory control mirrored in brain oscillations

Right ear advantage for vocal communication in frogs results from both structural asymmetry and attention modulation

“…Stimulus-driven laterality dominance is always monitored and modulated through top-down cognitive processes, such as the shifting of attention and changes in arousal. Moreover dynamic integration of these two processing modes for perceptual information in the cortex [72] has been proposed to be reflected by lower and higher frequencies [46]. Thus, we propose that the combined actions of structural asymmetry (bottom-up) and attention (top-down) bring about the REA, reflected in the dynamic oscillation of each EEG band.…”

“…Satisfaction of basic biological drives such as those associated with feeding, drinking and reproductive activity, as well as responding to cues which predict satisfaction of these drives, involves activation of the brain reward system which, in turn, leads to a decrease in delta activity [46]. Furthermore, the power of delta oscillations is negatively related to sympathetic activity [45] which normally would be more active under acoustic stimulation [47].…”

Natural world physical, brain operational, and mind phenomenal space–time

“…Research has shown that neural assemblies in the cerebral cortex, hippocampus or cerebellar cortex are all tuned to the same frequency ranges 25 [150][151][152][153][154]. Different frequencies appear to be related to the timing of different neuronal assemblies (activated parts of network), which are associated with different types of sensory and cognitive processes [10,[13][14][15]27,155,156]. The general assumption is that the functional interplay between units of the same 23 Recent evidence indicates that the excitation wave of a given neuron needs to arrive within a fixed time window at target neurons located at multiple spatially remote sites at variable distances, -almost simultaneously at each target cortical cell [140].…”

“…Recent studies based on the comparison of diffusion imaging and resting state functional magnetic resonance imaging (fMRI) data reveals a close relationship between structural and functional 27 connections [162], stressing that neuronal assembly is a set of neurons with both strong structural and synchronized functional connections.…”

“…Indeed, neurons in different brain parts oscillate at different frequencies [8][9][10] forming transient neuronal assemblies 1 [11][12][13][14][15]. These neuronal assemblies are selectively coupled or "bound" together into a coherent network each time when a person attends, perceives, memorizes, imagines, thinks, plans, and acts [16][17][18][19][20][21][22][23][24][25][26][27]. During this dynamic self-assembling 2 process different neuronal assemblies spatially located in distant parts of the brain engage and disengage in time, much like different musical pieces in a symphony [30], paralleling the emergence and vanishing of different perceptual features, objects, full scenes, and even abstract ideas in a conscious mind [31].…”