2012
DOI: 10.1016/j.jpsychores.2012.09.020
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Abstract: A differential LPP pattern for girls with AN and TD girls when viewing pictures of women's bodies of different weight categories was obtained. Highest amplitudes in AN patients for pictures of underweight women may reflect motivational significance of strongly underweight body shapes.

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Cited by 18 publications
(16 citation statements)
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“… 14 Finally, the motivational salience of underweight shapes in patients with AN has been investigated in an electroencephalography study. 32 Compared with normally developing adolescent girls, young AN patients presented a differential late positive potential pattern when viewing underweight women pictures. These results suggest an increased attention and motivation toward underweight stimuli in AN.…”
Section: Discussionmentioning
confidence: 98%
“… 14 Finally, the motivational salience of underweight shapes in patients with AN has been investigated in an electroencephalography study. 32 Compared with normally developing adolescent girls, young AN patients presented a differential late positive potential pattern when viewing underweight women pictures. These results suggest an increased attention and motivation toward underweight stimuli in AN.…”
Section: Discussionmentioning
confidence: 98%
“…Our group investigated the effect of exposure to body image stimuli in adolescents with AN using event-related potentials (ERPs) (Horndasch et al 2012). The ERP methodology is advantageous when compared to other imaging methods, due to its high temporal resolution of stimulus processing.…”
Section: Introductionmentioning
confidence: 99%
“…Importantly, however, no genotype-diagnosis subgroup ever contained fewer than 13 participants (see Methods). This is a reasonable sample size for clinical ERP research (Horndasch et al, 2012; MacNamara and Hajcak, 2010; Moeller et al, 2013), further evidenced by the fact that we were able to detect a significant main effect of genotype that had respectable, medium effect sizes (Cohen's d ). Since gene polymorphisms typically explain a limited amount of variance in highly complex diseases such as addiction and depression, these medium effect sizes are in fact expected.…”
Section: Discussionmentioning
confidence: 68%
“…Initial multiplicative analyses that tested the two genotypes separately in the same analyses did not reveal any MAOA × 5-HTTLPR interactions on any dependent variables reported below (all p >0.1), suggesting that an additive approach is appropriate. Importantly, all analyses reported below, whether split by 5-HTTLPR , MAOA , or their aggregation, always contained groups with at least 13 participants, which is not unlike other LPP studies in clinical populations [e.g., 15 individuals with generalized anxiety disorder (MacNamara and Hajcak, 2010), 13 individuals with anorexia nervosa (Horndasch et al, 2012), or 10 individuals with the 9R-allele of the dopamine transporter gene who tested positive for cocaine in urine (Moeller et al, 2013)], suggesting that the current study was sufficiently powered. Although study investigators were not blinded to genotype or participant grouping during analysis, they were blinded to genotype during study conduct and data collection [note that complete blinding of all relevant participant groupings would have been impractical (e.g., given the extensive cocaine information collected throughout the study, which was important for guaranteeing validity and quality assurance of the data)].…”
Section: Methodsmentioning
confidence: 99%