Slow cortical potential biofeedback and the startle reflex | Zendy

Stuart Brody | Zendy; Harald Rau | Zendy; Fabiola Köhler | Zendy; Harald T. Schupp | Zendy; Werner Lutzenberger | Zendy; Niels Birbaumer | Zendy

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Slow cortical potential biofeedback and the startle reflex

Author(s) -

Stuart Brody,

Harald Rau,

Fabiola Köhler,

Harald T. Schupp,

Werner Lutzenberger,

Niels Birbaumer

Publication year - 1994

Publication title -

biofeedback and self-regulation

Language(s) - English

Resource type - Journals

ISSN - 0363-3586

DOI - 10.1007/bf01720666

Subject(s) - biofeedback , arousal , electroencephalography , moro reflex , psychology , neuroscience , audiology , negativity effect , neurofeedback , reflex , relaxation (psychology) , startle response , physical medicine and rehabilitation , medicine , developmental psychology

The negativity of slow cortical potentials (SCP) of the surface EEG is a measure of brain excitability, correlating with motor and cognitive preparation. Self-control of SCP positivity has been shown to reduce seizure activity. Following SCP biofeedback from a central EEG electrode position, subjects gained bidirectional control over their SCP. The current study used a modified feedback methodology, and found a positive relationship between negativity and magnitude of EMG startle response (a measure of cortical and subcortical arousal, particularly aversive response disposition). Greater success in SCP differentiation was associated with self-report of less relaxation during negativity training.

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