Editing Binding problem (section)

==== EEG work ====
Mersad and colleagues used an EEG frequency tagging technique to differentiate between brain activity for the integrated whole object and brain activity for parts of the object.<ref>{{Cite journal|last1=Mersad|first1=Karima|last2=Caristan|first2=Céline|date=2021-09-17|title=Blending into the Crowd: Electrophysiological Evidence of Gestalt Perception of a Human Dyad|journal=Neuropsychologia|volume=160|pages=107967|doi=10.1016/j.neuropsychologia.2021.107967|issn=1873-3514|pmid=34303717|s2cid=236183221|doi-access=free}}</ref> The results showed that the visual system binds two humans in close proximity as part of an integrated whole. These results are consistent with evolutionary theories that face-to-face bodies are one of the earliest representations of social interaction.<ref name=":2" /> It also supports other experimental work showing that body-selective visual areas respond more strongly to facing bodies.<ref>{{Cite journal|last1=Abassi|first1=Etienne|last2=Papeo|first2=Liuba|date=2020-01-22|title=The Representation of Two-Body Shapes in the Human Visual Cortex|journal=The Journal of Neuroscience|volume=40|issue=4|pages=852–863|doi=10.1523/JNEUROSCI.1378-19.2019|issn=1529-2401|pmc=6975292|pmid=31801812}}</ref>