Anticipated action goals structure spatial organisation in visual working memory following self-movement

Working memory enables the retention of relevant visual information in service of anticipated behaviour. Consequently, the goal for which information is retained may crucially sculpt the way we retain and organise information in visual working memory. Here, we investigated how anticipated action goals structure the spatial organisation used for visual working memory following self movement. Participants encoded two tilted objects (left and right) in working memory, then turned around 180 degrees before being cued to either reproduce the tilt of the cued object from memory (report session) or manually reach back to it (reach session). The 180-degree self-movement uniquely enabled us to oppose and disentangle two potential spatial frames for immersive working memory in moving participants: the native spatial frame of how the objects were registered during encoding and an updated spatial frame keeping track where the objects are in the external world behind the participant after self-movement. Behavioural memory reports and spatial biases in gaze converged on the use of distinct spatial frames in the two tasks. This reveals how a foundational aspect of working memory in behaving humans - the spatial frame used to organise memories following self movement - is critically sculpted by anticipated action goals.