Allocentric egocentric updating spatial memories pdf dating site
Such decisions on where things are in space with respect to one another and the actual location of the individual, however, do not necessarily depend on an allocentric representation. Allocentric and egocentric updating of spatial memories. For example, we could also remember, based on our past experience, that our goal is present 50 and 30° to the right of our current position, which would be an egocentric form of spatial judgment (Figures 1A, B; see also Wolbers and Wiener, 2014). We discuss our non-aggregate network model in light of existing data and provide several key predictions for future experiments. Central to considering how we represent our spatial surrounding, Edward Tolman (1948) first proposed that the brain creates a “cognitive map” of a spatial environment. doi: 10.1037/0096-15184.108.40.206 Pubmed Abstract | Pubmed Full Text | Cross Ref Full Text | Google Scholar Philbeck, J. While there is overall broad consensus regarding the involvement of the hippocampus in allocentric memory, there is significantly less consensus across both empirical and theoretical studies, particularly in humans, regarding the primary (i.e., necessary) role of the hippocampus to all forms of allocentric memory. Here, we will explore some reasons why pinning down a primary role for the human hippocampus in allocentric memory across studies has been challenging, including both the difficulty of identifying “process-pure” allocentric tasks and the fact that multiple brain regions contribute necessary functions to allocentric memory.
Before we begin our discussion, it is helpful to define and clarify some of the basic assumptions and ideas we will be working with throughout.
Subsequent work in humans, though, has generally not supported the idea that situations involving utilization of an allocentric representation possess the same characteristics as cartographic maps, particularly their Euclidean qualities (for a review, see: Tversky, 1992).
For example, prior heuristic knowledge (Stevens and Coupe, 1978), experience with specific egocentric viewpoints (Shelton and Mc Namara, 2001), and geometrically prominent features (Mc Namara et al., 2003; Cheng and Newcombe, 2005) influence how these representations manifest. The cognitive neuroscience of remote episodic, semantic and spatial memory.
While the widely studied allocentric spatial representation holds a special status in neuroscience research, its exact nature and neural underpinnings continue to be the topic of debate, particularly in humans. Network alterations supporting word retrieval in patients with medial temporal lobe epilepsy.
Here, based on a review of human behavioral research, we argue that allocentric representations do not provide the kind of map-like, metric representation one might expect based on past theoretical work.