alexa EEG theta beta ratio in relation to fear-modulated response-inhibition, attentional control, and affective traits.


International Journal of Sensor Networks and Data Communications

Author(s): Putman P, van Peer J, Maimari I, van der Werff S, Putman P, van Peer J, Maimari I, van der Werff S

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Abstract Power density-ratios of fast and slow frequency spectrum-bands can be calculated from resting-state electroencephalography (EEG) recordings. A well-established phenomenon is that slow wave/fast wave ratios (SW/FW) are increased in attention-deficit/hyperactivity disorder. Several researchers have also begun to study relationships between SW/FW and affect. This work suggests that increased SW/FW may reflect reduced frontal cortical control over subcortical affective approach drive. The present study (n=28) aimed to further examine this notion by testing several predictions derived from it. In line with these predictions, SW/FW was found to correlate negatively with fearful modulation of response inhibition in an emotional go/no-go task and with self-reported attentional control. Results also suggested a positive relation between SW/FW and trait approach motivation and a negative relation to anxiety, as predicted. These results are consistent with previous studies and support the notion that SW/FW may provide a useful tool in the study of affect and emotion regulation. Copyright 2009 Elsevier B.V. All rights reserved. This article was published in Biol Psychol and referenced in International Journal of Sensor Networks and Data Communications

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