Drawing together reveals how young and old brains build connection
People who drew together showed more similar brain activity than when they drew separately. Younger and older pairs felt closer over six weeks, but their brain synchrony decreased rather than increased. The findings suggest closeness does not always mean two brains “tick” alike, especially across generations. Two strangers sit over one sheet of paper, oil pastels nearby, trying to draw without talking. Their hands move, their eyes follow, and their brains begin responding to each other. At ETH Zurich, cognitive scientist Ryssa Moffat used that simple scene to study how new relationships form. Moffat, a postdoctoral researcher at the Social Brain Sciences Lab within the Chair of Cognitive and Social Neuroscience, followed pairs of people as they met repeatedly for shared drawing sessions. The study, published in PLOS Biology, included 61 pairs who met six times across six weeks. Participants came from two age groups: younger adults ages 18 to 35 and older adults ages 70 to 85. The group included 31 cross-generational pairs and 30 same-age pairs. At the start, the participants did not …






