EEG activation response under different neurohumoral states

Stabilometric, electromyographic, and electroencephalographic parameters in postmenopausal women depend on training support afferentation

“…It appeared that, as judged by the α wave amplitude suppression value in response to opening the eyes [30,46], visual activation was the highest precisely in group N in the standing position, whereas for women purposefully training their support afferentation, the decrease in the EEG α wave amplitude in response to opening the eyes was not significant. That the increase in support afferentation may decrease the role of visual activation in balance maintenance was also confirmed by the results of Vecchio et al [55], who showed that the role of visual activation in sensorimotor integra tion decreased in masters of shooting purposefully training proprioceptive and tactile sensitivity of sup port afferentation zones [55].…”

“…Thus, to assess the support afferentation influence on the central component of sensorimotor integration of the balance maintenance system in elderly women, we studied the following characteristics of the EEG α activity: (1) the α wave power in the individually determined low frequency band (this parameter is associated with central processes of involuntary acti vation [24,29,30] and involuntary inhibition [31,32]); (2) the EEG power in the individually deter mined high frequency α band whose decrease charac terizes voluntary activation [33,34] and its increase reflects selective inhibition of irrelevant information [35,36]; (3) the individual α band width, which reflects the number of frequency generators involved in activation reaction [37] and is associated with non verbal creativity [38]. Simultaneously with the mea surement of the α activity values, the forehead muscle tone was assessed by electromyography.…”