A Smart Model of Imaginal Perspective Taking

Published on December 9, 2022

Imagine you’re trying to find your way through a maze, but you can only see the path from a bird’s-eye view. How do you navigate? Well, scientists have been studying imaginal perspective taking, which is our ability to understand spatial relations from different perspectives. And now, they’ve developed a smart computational model called Smart (Spatial Memory Access by Reference Frame SelecTion) that simulates how our brain processes and activates memories to help us navigate. By explaining key findings on human imaginal perspective taking, Smart sheds light on the underlying mechanisms of this spatial cognition process. Moreover, this model suggests that our spatial representations are not fixed but rather flexible combinations of different reference frames. So, just like a puzzle-solving genius, Smart pieces together the puzzle of how we perceive and navigate space.

Abstract
The ability to judge spatial relations from perspectives that differ from one’s current body orientation and location is important for many everyday activities. Despite considerable research on imaginal perspective taking, however, detailed computational accounts of the processes involved in this ability are missing. In this contribution, I introduce Smart (Spatial Memory Access by Reference Frame SelecTion) as a computational cognitive model of imaginal perspective taking processes. In assuming that imaginal perspective taking is governed by reference frame selection for memory access and subsequent motor activation, Smart is able to explain and simulate key findings on human imaginal perspective taking. In addition to providing novel insight into the mechanisms underlying imaginal perspective taking, Smart also has several implications for our view on spatial memory, more generally. In particular, Smart supports the idea that enduring spatial representations are essentially orientation-free and that spatial representations are best viewed as flexible combinations of representation structures and reference frames.

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