RT Journal Article SR 00 A1 Pitt, Benjamin T1 Multidimensional spatial memory: One action, two reference frames JF Proceedings of the Annual Meeting of the Cognitive Science Society YR 2024 FD 2024 VO Vol. 46 SP 276 OP 282 AB Spatial cognition is fundamental to human behavior, but people differ in how they remember spatial relations, variably using body-based (egocentric) and environment-based (allocentric) spatial reference frames. Despite decades of study, the causes of this variation and flexibility in spatial memory remain unclear. Here we show that people spontaneously use different reference frames on different spatial axes at the same time. When remembering the placement of a target object in a 2-dimensional array, Indigenous Tsimane' adults preferentially used allocentric space to determine lateral placement and egocentric space to determine sagittal placement in the same action. This effect of axis was also significant among US university students, whose overall preference for egocentric space was stronger on the sagittal than lateral axis. These findings support a novel account of spatial cognitive diversity and suggest that people across cultures habitually integrate egocentric and allocentric spatial reference frames into the same action. SN 1069-7977 LK https://publications.ut-capitole.fr/id/eprint/50436/ UL http://tse-fr.eu/pub/130342