AN interactive light and sound installation hits Cathedral Square this week with a vast network of glowing spheres looking for a human connection.

The artwork Affinity by Sydney-based artist studio Amigo & Amigo was first seen at Sydney’s Vivid festival and it’s been brought west with funding from the WA government Covid-recovery chest to get people back into the city.

Affinity features a network of orbs with 62 different colour combinations linked up to represent neurons in the brain. They change colour at a touch and the more people that interact with a globe the further their colour travels through the network.

It runs daily 6pm to 9pm from May 1 to May 28 at the corner of Cathedral Avenue and St Georges Terrace.