Alyson Hock

The development of intermodal emotion perception from bodies and voices

Even in the absence of facial information, adults are able to efficiently extract emotions from bodies and voices. Although prior research indicates that 6.5-month-old infants match emotional body movements to vocalizations, the developmental origins of this function are unknown. Moreover, it is not clear whether infants perceive emotion conveyed in static body postures and match them to vocalizations. In the current experiments, 6.5-month-olds matched happy and angry static body postures to corresponding vocalizations in upright images but not in inverted images. However, 3.5-month-olds failed to match. The younger infants also failed to match when tested with videos of emotional body movements that older infants had previously matched. Thus, whereas 6.5-month-olds process emotional cues from body images and match them to emotional vocalizations, 3.5-month-olds do not exhibit such emotion knowledge. These results indicate developmental changes that lead to sophisticated emotion processing from bodies and voices early in life.

The whole picture: Holistic body posture recognition in infancy

Holistic processing is tied to expertise and is characteristic of face and body perception by adults. Infants process faces holistically, but it is unknown whether they process body information holistically. In the present study, infants were tested for discrimination between body postures that differed in limb orientations in three conditions: in the context of the whole body, with just the isolated limbs that changed orientation, or with the limbs in the context of scrambled body parts. Five- and 9-month-olds discriminated between whole-body postures, but failed in the isolated-part and scrambled-body conditions, demonstrating holistic processing of information from bodies. These results indicate that at least some level of expertise in body processing develops quite early in life.

The Effects of a Comprehensive Reading Program on Reading Outcomes for Middle School Students With Disabilities

Reading achievement scores for adolescents with disabilities are markedly lower than the scores of adolescents without disabilities. For example, 62% of students with disabilities read below the basic level on the NAEP Reading assessment, compared to 19% of their nondisabled peers. This achievement gap has been a continuing challenge for more than 35 years. In this article, we report on the promise of a comprehensive 2-year reading program called Fusion Reading. Fusion Reading is designed to significantly narrow the reading achievement gap of middle school students with reading disabilities. Using a quasi-experimental design with matched groups of middle school students with reading disabilities, statistically significant differences were found between the experimental and comparison conditions on multiple measures of reading achievement with scores favoring the experimental condition. The effect size of the differences were Hedges’s g = 1.66 to g = 1.04 on standardized measures of reading achievement.

Integrated Emotion Processing in Infancy: Matching of Faces and Bodies

Accurate assessment of emotion requires the coordination of information from different sources such as faces, bodies, and voices. Adults readily integrate facial and bodily emotions. However, not much is known about the developmental origin of this capacity. Using a familiarization paired-comparison procedure, 6.5-month-olds in the current experiments were familiarized to happy, angry, or sad emotions in faces or bodies and tested with the opposite image type portraying the familiar emotion paired with a novel emotion. Infants looked longer at the familiar emotion across faces and bodies (except when familiarized to angry images and tested on the happy/angry contrast). This matching occurred not only for emotions from different affective categories (happy, angry) but also within the negative affective category (angry, sad). Thus, 6.5-month-olds, like adults, integrate emotions from bodies and faces in a fairly sophisticated manner, suggesting rapid development of emotion processing early in life.