Department of Psychology, University of Cape Town, Rondebosch 7700, Cape Town, South Africa.
Brain Cogn. 2021 Feb;147:105652. doi: 10.1016/j.bandc.2020.105652. Epub 2020 Dec 15.
Recent research has identified a leftward cradling bias in males, although males are much less lateralised than females. It has been suggested that on an individual level this leftward bias is strengthened as males acquire caregiving experience. Furthermore, recent explanations propose that leftward cradling bias is facilitated by right-hemispheric specialisation for processing facial emotions. Some have suggested that it is specifically facilitated by right-hemispheric specialisation for basic social-affective processes that underlie our capacity to relate to others. The present study investigated male cradling bias in relation to these three factors. Ninety-eight right-handed males aged 18-56 years were observed across four separate trials of an imaginary cradling scenario. Caregiving experience, attachment style, hemispheric lateralisation for processing facial emotion, and autistic traits were measured. A leftward cradling bias was observed in 72.4% of participants and was not contingent on caregiving experience. Regression analyses revealed that right-hemispheric lateralisation for processing facial emotions and autistic traits were both significant predictors of leftward cradling, while attachment style did not predict leftward cradling. Overall, our findings indicate that the leftward cradling bias in males is not contingent on previous caregiving experience and provide further support for right-hemispheric specialisation and basic social-affective processing explanations.
最近的研究发现男性存在向左抱持的偏向，尽管男性的侧化程度远低于女性。有人认为，在个体层面上，这种左向偏向会随着男性获得育儿经验而增强。此外，最近的解释提出，右半球对面部情绪处理的专业化促进了左向抱持偏向。有人认为，正是右半球对基本社会情感过程的专业化促进了我们与他人建立关系的能力。本研究调查了男性抱持偏向与这三个因素的关系。在四个独立的想象抱持场景试验中，观察了 98 名年龄在 18-56 岁之间的右利手男性。测量了育儿经验、依恋风格、处理面部情绪的大脑半球侧化和自闭症特质。72.4%的参与者表现出向左抱持的偏向，而且这种偏向与育儿经验无关。回归分析表明，处理面部情绪的右半球侧化和自闭症特质都是左向抱持的显著预测因素，而依恋风格则不能预测左向抱持。总的来说，我们的研究结果表明，男性的左向抱持偏向与之前的育儿经验无关，并进一步支持了右半球专业化和基本社会情感处理的解释。
