A multi-strategy spatial navigation model in a text-based environment

Changkun Zhao, Jeremiah W. Hiam, Jonathan H. Morgan, Frank E. Ritter

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Scopus citations

Abstract

Cognitive maps have been used to explain the cognitive processes underlying human spatial memory for several decades. Numerous theories have offered explanations regarding the structure of cognitive maps from the perspectives of spatial cognition, visual perception, and neuroscience. Within this literature, two representations of cognitive maps (map-like representations and route-based representations) have generally been used to model the learning of spatial information. Map-like representations involve spatial geometries, with landmarks acting as strong references. Alternatively, route-based representations consist of sequences of positions, orientations, and landmarks. Studies suggest that humans use both of these representations, and that the representation (and thus the strategy) used is often a function of the agent's familiarity with the environment. In this paper, we propose an ACT-R model that integrates both these representations and their associated strategies, using a route-based representation when learning new environments and a map-based representation to refine the agent's understanding. The results show that the map-based representation could improve an agent's route-following abilities in at least two cases: (1) searching the route when the agent is in an off-route position, and (2) for taking novel shortcuts in the route. Our model's behavioral output is consistent with the literature (Foo, Duchon, Warren, & Tarr, 2005; Foo, Warren, Duchon, & Tarr, 2007), in that our agents like human beings rely primarily on route-based memory when navigating while using map-based memory as a secondary reference.

Original languageEnglish (US)
Title of host publication20th Annual Conference on Behavior Representation in Modeling and Simulation 2011, BRiMS 2011
Pages251-258
Number of pages8
StatePublished - 2011
Event20th Annual Conference on Behavior Representation in Modeling and Simulation 2011, BRiMS 2011 - Sundance, UT, United States
Duration: Mar 21 2011Mar 24 2011

Other

Other20th Annual Conference on Behavior Representation in Modeling and Simulation 2011, BRiMS 2011
CountryUnited States
CitySundance, UT
Period3/21/113/24/11

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All Science Journal Classification (ASJC) codes

  • Modeling and Simulation

Cite this

Zhao, C., Hiam, J. W., Morgan, J. H., & Ritter, F. E. (2011). A multi-strategy spatial navigation model in a text-based environment. In 20th Annual Conference on Behavior Representation in Modeling and Simulation 2011, BRiMS 2011 (pp. 251-258)