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INFANTS’ PERCEPTION OF EMOTION FROM DYNAMIC BODY MOVEMENTSZieber, Nicole R. 01 January 2012 (has links)
In humans, the capacity to extract meaning from another person’s behavior is fundamental to social competency. Adults recognize emotions conveyed by body movements with comparable accuracy to when they are portrayed in facial expressions. While infancy research has examined the development of facial and vocal emotion processing extensively, no prior study has explored infants’ perception of emotion from body movements. The current studies examined the development of emotion processing from body gestures. In Experiment 1, I asked whether 6.5-month-olds infants would prefer to view emotional versus neutral body movements. The results indicate that infants prefer to view a happy versus a neutral body action when the videos are presented upright, but fail to exhibit a preference when the videos are inverted. This suggests that the preference for the emotional body movement was not driven by low-level features (such as the amount or size of the movement displayed), but rather by the affective content displayed.
Experiments 2A and 2B sought to extend the findings of Experiment 1 by asking whether infants are able to match affective body expressions to their corresponding vocal emotional expressions. In both experiments, infants were tested using an intermodal preference technique: Infants were exposed to a happy and an angry body expression presented side by side while hearing either a happy or angry vocalization. An inverted condition was included to investigate whether matching was based solely upon some feature redundantly specified across modalities (e.g., tempo). In Experiment 2A, 6.5-month-old infants looked longer at the emotionally congruent videos when they were presented upright, but did not display a preference when the same videos were inverted. In Experiment 2B, 3.5-month-olds tested in the same manner exhibited a preference for the incongruent video in the upright condition, but did not show a preference when the stimuli were inverted. These results demonstrate that even young infants are sensitive to emotions conveyed by bodies, indicating that sophisticated emotion processing capabilities are present early in life.
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Associations of observer’s gender, Body Mass Index and internalization of societal beauty ideals to visual body processingCazzato, V., Walters, Elizabeth R., Urgesi, C. 01 March 2021 (has links)
Yes / We examined whether visual processing mechanisms of the body of conspecifics are different in women and men and whether these rely on westernised socio-cultural ideals and body image concerns. Twenty-four women and 24 men performed a visual discrimination task of upright or inverted images of female or male bodies and faces (Experiment 1) and objects (Experiment 2). In Experiment 1, both groups of women and men showed comparable abilities in the discrimination of upright and inverted bodies and faces. However, the gender of the human stimuli yielded different effects on participants’ performance, so that female faces, and male bodies appeared to be processed less configurally than female bodies and male faces, respectively. Interestingly, the reduction of configural processing for male bodies was significantly predicted by participants’ Body Mass Index (BMI) and their level of internalization of muscularity. Our findings suggest that configural visual processing of bodies and faces in women and men may be linked to a selective attention to detail needed for discriminating salient physical (perhaps sexual) cues of conspecifics. Importantly, BMI and muscularity internalization of beauty ideals may also play a crucial role in this mechanism.
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