An fMRI Study of the Neural Correlates of Incidental Versus Directed Emotion Processing in Pediatric Bipolar Disorder.
Objective: To use functional neuroimaging to probe the affective circuitry dysfunctions underlying disturbances in emotion processing and emotional reactivity in pediatric bipolar disorder (PBD). Method: Equal numbers of controls (HC) and unmedicated patients with euthymia and PBD were matched for a...
| Publicado en: | Journal of the American Academy of Child & Adolescent Psychiatry Vol. 48; no. 3; pp. 308 - 320 |
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| Autores principales: | , , , |
| Formato: | Artículo |
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Elsevier Science
March 2009
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ssf&AN=510770992&site=ehost-live header: @attributes: shortDbName: ssf uiTerm: 510770992 longDbName: Social Sciences Full Text (H.W. Wilson) uiTag: AN controlInfo: bkinfo: jinfo: jid: 08908567 JAM jtl: Journal of the American Academy of Child & Adolescent Psychiatry issn: 08908567 maglogo: N pubinfo: dt: March 2009 vid: 48 iid: 3 pid: 467 pub: Elsevier Science artinfo: ui: 510770992 10.1097/CHI.0b013e3181948fc7 ppf: 308 ppct: 12 formats: tig: atl: An fMRI Study of the Neural Correlates of Incidental Versus Directed Emotion Processing in Pediatric Bipolar Disorder. aug: au: Pavuluri, Mani N. Passarotti, Alessandra M. Harral, Erin M. Sweeney, John A. su: Bipolar disorder in children Child behavior Children with mental illness Emotions Brain function localization sug: subj: Bipolar disorder in children Child behavior Children with mental illness Emotions Brain function localization ab: Objective: To use functional neuroimaging to probe the affective circuitry dysfunctions underlying disturbances in emotion processing and emotional reactivity in pediatric bipolar disorder (PBD). Method: Equal numbers of controls (HC) and unmedicated patients with euthymia and PBD were matched for age, sex, race, socioeconomic status, and IQ (n = 10 per group; mean age 14.2 years [SD 2.0 years]). The task consisted of a “directed” emotion processing condition where subjects judged whether emotion in facial expression was positive or negative and an “incidental” condition where subjects judged whether faces expressing similar affect were older or younger than 35 years. Results: Relative to the directed condition, the incidental condition elicited greater activation in the right amygdala and the right insula, the left middle frontal gyrus, and the left posterior cingulate cortex in patients with PBD, in contrast to the HC that showed greater activation in the right superior frontal gyrus. In both incidental and directed conditions, relative to visual fixation, patients with PBD showed less activation in the right prefrontal cortex (superior, middle, and inferior frontal gyri) and the pregenual anterior cingulate cortex and greater activation in the posterior visual and face-processing regions (i.e., right precuneus/cuneus, fusiform gyrus). Conclusions: Increased amygdala activation observed in patients with PBD elicited by incidental emotional processing relative to directed emotional processing may indicate more intense automatic emotional reactivity. Furthermore, the right prefrontal systems that are believed to modulate affect seem to be less engaged in patients with PBD regardless of whether the emotion processing is incidental or directed, which may signify reduced top-down control of emotional reactivity in PBD. J. Am. Acad. Child Adolesc. Psychiatry, 2009;48(3):308-319. Reprinted by permission of the publisher. pubtype: Academic Journal doctype: Article src: R language: English refInfo: copyright: @attributes: flag: N holdings: @attributes: islocal: N |
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