It encompasses regions that are involved in human motion processing: In contrast, these regions may not have shown increased activation in the children either because some SIs were not part of their motor repertoire yet or because their mirror system was less refined. Adults recruited frontoparietal regions part of the mirror system or to the social brain to a greater extent than adolescents. In the s, the psychologist Johansson developed a technique to explore body motion perception with minimized shape aspects. Oxford University Press is a department of the University of Oxford. Moreover, the network identified during SI observation was quite similar to the one recruited during the observation of pictures depicting cooperative SI Canessa et al.
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Open in f690000 separate window. However, surprisingly, adolescents showed greater activation in these regions than adults. Published by Oxford University Press.
Introduction From an early age, we use and interpret body language to communicate with other people.
All groups successfully performed the discrimination task, but children had a lower performance and longer response times than the older groups. The information carried by human motion only is thus sufficient to activate the regions involved in the observation of realistic SIs.
However, in adults other frontal and parietal regions e. Indeed, perception and interpretation of SI may evolve throughout development, particularly during adolescence since changes in terms of relationships and identity occur emerge Casey et al.
Superior temporal and premotor brain areas necessary for biological motion perception.
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Specific involvement of human parietal systems and the amygdala in the perception of biological motion. No feedback on responses was provided. The patients successively performed 2 experimental tasks. Vieeo Cortex22— These should be differentiated from stimulus-induced responses, which are transient variations due to the stimulation.
In the first column, blue corresponds to the temporal and occipital lobes, and red corresponds to the frontal and parietal vixeo. Patients are coded by colored symbols; the site names refer to Table 1.
Deciphering human motion to discriminate social interactions: a developmental neuroimaging study
In all three groups, the posterior parts of the superior temporal sulci and middle temporal gyri, the inferior frontal gyri and the anterior temporal lobes showed greater activation when observing social interactions. They suggest that interestingly, a set of core regions enabling the discrimination of Hi–q from NMs overlapped in the three groups.
Materials and methods Participants Fourteen healthy children 8 females, mean age in years: PloS One6e The patients were presented with a succession of words, some printed in green type others in red type color displayed in random order.
This ensured possible comparisons between the different age groups as brain activity differences would not be merely sustained by different performance. Brain regions specific to adults The precuneus was more activated in adults than in adolescents. As can be seen in Figure 2there were no baseline shifts in the present experiment, as prestimulus energy levels did not deviate from values measured at hi-qq.
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Frontiers in Human Neuroscience4 The pSTS plays a key role in human body perception, in social perception Lahnakoski et al. Point-light or stick-light displays enabled the observer to focus on body movements only, without paying attention to other aspects such as facial expressions. One hundred and twelve items showing 20 different SI and 20 different NM were pseudo-randomly presented.
It furthers the University’s objective of excellence in research, scholarship, and education by publishing worldwide. In conclusion, a shared set of brain regions enabling the discrimination of social interactions from neutral movements through t69000 motion is already present in 8-year-old children.
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This study vieeo designed to investigate the neural correlates of SI recognition based on human motion perception in children, adolescents, and adults. Motion cues varied with each SI.
Conversely, transient interruption of gamma synchronization might be an efficient way of shutting down local neural communication, disassembling local neural networks, and reducing the influence of a given cortical region on the g69000 of the system. A prediction would be that this mechanism should be quite general and observed throughout the brain. Social Cognitive and Affective Neuroscience9—