Neural responses to fearful eyes in children with conduct problems and varying levels of callous―unemotional traits
In: Psychological medicine (Print), Jg. 44 (2014), Heft 1, S. 99-109
Online
academicJournal
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Zugriff:
Background. Children with conduct problems (CP) are a heterogeneous group. Those with high levels of callous-unemotional traits (CP/HCU) appear emotionally under-reactive at behavioural and neural levels whereas those with low levels of CU traits (CP/LCU) appear emotionally over-reactive, compared with typically developing (TD) controls. Investigating the degree to which these patterns of emotional reactivity are malleable may have important translational implications. Instructing participants with CP/HCU to focus on the eyes of fearful faces (i.e. the most salient feature) can ameliorate their fear-recognition deficits, but it is unknown whether this is mediated by amygdala response. It is also unknown whether focusing on fearful eyes is associated with increased amygdala reactivity in CP/LCU. Method. Functional magnetic resonance imaging (fMRI) was used to measure neural responses to fearful and calm faces in children with CP/HCU, CP/LCU and TD controls (n=17 per group). On half of trials participants looked for a blue dot anywhere within target faces; on the other half, participants were directed to focus on the eye region. Results. Reaction time (RT) data showed that CP/LCU were selectively slowed in the fear/eyes condition. For the same condition, CP/LCU also showed increased amygdala and subgenual anterior cingulate cortex (sgACC)/orbitofrontal cortex (OFC) responses compared with TD controls. RT and amygdala response to fear/eyes were correlated in CP/LCU only. No effects of focusing on the eye region were observed in CP/HCU. Conclusions. These data extend the evidence base suggesting that CU traits index meaningful heterogeneity in conduct problems. Focusing on regulating reactive emotional responses may be a fruitful strategy for children with CP/LCU.
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Neural responses to fearful eyes in children with conduct problems and varying levels of callous―unemotional traits
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Autor/in / Beteiligte Person: | SEBASTIAN, C. L ; McCRORY, E. J ; DADDS, M. R ; CECIL, C. A. M ; LOCKWOOD, P. L ; HYDE, Z. H ; DE BRITO, S. A ; VIDING, E |
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Zeitschrift: | Psychological medicine (Print), Jg. 44 (2014), Heft 1, S. 99-109 |
Veröffentlichung: | Cambridge: Cambridge University Press, 2014 |
Medientyp: | academicJournal |
Umfang: | print; 11; 1 p.1/4 |
ISSN: | 0033-2917 (print) |
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