Slow Cortical Potentials and Behaviour

activity alpha amplitude areas associated attention averaged baseline behaviour biofeedback brain central cerebral changes Chapter Clin compared complex components contingent cortex cortical decrease dependent described differentiation distribution early effects Elbert electrical electrode Electroenc elicited et al event event-related evidence evoked potentials example experiment experimental feedback field Figure frequency frontal function hand human increase indicate influence interval latency learning lines McCallum means measured motor movements negative neuronal Neurophysiol observed operant paradigm patients pattern peak performance polarization positive potential preparation presented Press processing produce range recorded reduced referred reflect regulation reported Research response Rockstroh scalp sensory session shifts signal slow specific stimulus studies subjects suggest task tCNV threshold tion tone trials variation vary visual wave York