Several studies have reported impairments in decoding emotional facial expressions in intimate partner violence (IPV) perpetrators. However, the mechanisms that underlie these impaired skills are not well known. Given this gap in the literature, we aimed to establish whether IPV perpetrators (n=18) differ in their emotion decoding process, attentional skills, and testosterone (T), cortisol (C) levels and T/C ratio in comparison with controls (n=20), and also to examine the moderating role of the group and hormonal parameters in the relationship between attention skills and the emotion decoding process. Our results demonstrated that IPV perpetrators showed poorer emotion recognition and higher attention switching costs than controls. Nonetheless, they did not differ in attention to detail and hormonal parameters. Finally, the slope predicting emotion recognition from deficits in attention switching became steeper as T levels increased, especially in IPV perpetrators, although the basal C and T/C ratios were unrelated to emotion recognition and attention deficits for both groups. These findings contribute to a better understanding of the mechanisms underlying emotion recognition deficits. These factors therefore constitute the target for future interventions.

中文翻译：

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睾丸激素和注意力缺陷是亲密伴侣暴力施暴者情绪识别受损的可能机制

几项研究报告说，亲密伴侣暴力（IPV）犯罪者在解码情感面部表情时会受到损害。但是，导致这些技能受损的机制尚不清楚。鉴于文献中的空白，我们旨在确定IPV犯罪者（n = 18）与对照组相比，其情绪解码过程，注意力技能以及睾丸激素（T），皮质醇（C）水平和T / C比是否存在差异（ （n = 20），并研究小组在调节注意力和情绪解码过程之间的调节作用和荷尔蒙参数。我们的结果表明，与对照组相比，IPV犯罪者表现出较差的情绪识别和更高的注意力转换成本。但是，他们在细节和荷尔蒙参数上的注意没有差异。最后，尽管基础C和T / C比率与两组的情绪识别和注意缺陷无关，但随着T水平的升高，特别是在IPV犯罪者中，从注意力转换缺陷识别出的情绪识别的斜率变得越来越陡。这些发现有助于更好地理解情绪识别缺陷的潜在机制。因此，这些因素构成了未来干预的目标。