Title of article :
Alpha absolute power measurement in panic disorder with agoraphobia patients
Author/Authors :
de Carvalho، نويسنده , , Marcele Regine and Velasques، نويسنده , , Bruna Brandمo and Freire، نويسنده , , Rafael C. and Cagy، نويسنده , , Maurيcio and Marques، نويسنده , , Juliana Bittencourt and Teixeira، نويسنده , , Silmar and Rangé، نويسنده , , Bernard P. and Piedade، نويسنده , , Roberto and Ribeiro، نويسنده , , Pedro and Nardi، نويسنده , , Antonio Egidio and Akiskal، نويسنده , , Ha، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2013
Pages :
6
From page :
259
To page :
264
Abstract :
AbstractBackground attacks are thought to be a result from a dysfunctional coordination of cortical and brainstem sensory information leading to heightened amygdala activity with subsequent neuroendocrine, autonomic and behavioral activation. Prefrontal areas may be responsible for inhibitory top-down control processes and alpha synchronization seems to reflect this modulation. The objective of this study was to measure frontal absolute alpha-power with qEEG in 24 subjects with panic disorder and agoraphobia (PDA) compared to 21 healthy controls. s ata were acquired while participants watched a computer simulation, consisting of moments classified as “high anxiety”(HAM) and “low anxiety” (LAM). qEEG data were also acquired during two rest conditions, before and after the computer simulation display. s erved a higher absolute alpha-power in controls when compared to the PDA patients while watching the computer simulation. The main finding was an interaction between the moment and group factors on frontal cortex. Our findings suggest that the decreased alpha-power in the frontal cortex for the PDA group may reflect a state of high excitability. sions sults suggest a possible deficiency in top-down control processes of anxiety reflected by a low absolute alpha-power in the PDA group while watching the computer simulation and they highlight that prefrontal regions and frontal region nearby the temporal area are recruited during the exposure to anxiogenic stimuli.
Keywords :
Absolute alpha-power , Panic Disorder , QEEG , frontal cortex , neurobiology , Brain mapping
Journal title :
Journal of Affective Disorders
Serial Year :
2013
Journal title :
Journal of Affective Disorders
Record number :
1434117
Link To Document :
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