On Egocentric and Allocentric Maps

Yeap, Wai K.

doi:10.1007/978-3-319-11215-2_5

Cited by 6 publications

(5 citation statements)

References 29 publications

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“…In the allocentric perspective, objects are represented with reference to other objects, their relationships, and the spatial configuration in the environment. Maps are typical examples of allocentric representations of spatial environments (e.g., Yeap, 2014), as they represent the relations between the objects in the environment from an observer-independent bird's-eye perspective. In the egocentric perspective, in contrast, the position of objects is encoded with reference to the observer, more specifically, to her or his own position and orientation in the environment.…”

Section: Resultsmentioning

confidence: 99%

Landmark selection for route instructions: At which corner of an intersection is the preferred landmark located?

Hamburger¹,

Röser²,

Knauff³

2022

Front. Comput. Sci.

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Cognitive studies showed that good landmarks–salient objects in the environment–make it easier for recipients of route instructions to find their way to the destination. Adding landmarks to route instructions also improves mobile navigation systems for pedestrians. But, which landmarks do people consider most helpful when giving route instructions? Four experiments explored this question. In the first experiment, the environment, including the route and landmarks, was presented on a map. The landmarks were located at the four corners of a right-angled intersection. Participants had to select those landmark-based route instructions they considered most helpful. In all other experiments, the environment was presented from an egocentric perspective, either in a video or as a sequence of pictures of intersections. Participants had to select those landmarks they would use in a route instruction. All landmarks had the same visual and semantic salience. The positions of the participants at the intersection were varied. Results show that participants consistently selected landmarks at the side of the road into which they had to turn. Moreover, the participants' position at the intersection affected whether they selected landmarks before or behind the decision point. These results have consequences for human spatial cognition research and for the automatic selection of landmarks in mobile pedestrian navigation systems.

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Section: Resultsmentioning

confidence: 99%

Landmark selection for route instructions: At which corner of an intersection is the preferred landmark located?

Hamburger¹,

Röser²,

Knauff³

2022

Front. Comput. Sci.

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“…; Collett, Chittka & Collett ). This debate also includes the question whether spatial information in the brain is encoded with respect to the position of the viewer, that is egocentrically, or independently of the position of the viewer, that is allocentrically (Yeap ). In our models, we do not focus on navigational mechanisms but decision‐making processes, and we use the cognitive map as a useful mathematical tool to model spatial information.…”

Section: Discussionmentioning

confidence: 99%

“…The existence of cognitive maps in animals is debated, and there is especially controversy about what form such maps may take, for example whether animals use topological cognitive maps for landmark-based navigation or whether animals can create and use geometric cognitive maps that preserve angles and distances between locations (Bennett 1996;Asensio et al 2011;Collett, Chittka & Collett 2013). This debate also includes the question whether spatial information in the brain is encoded with respect to the position of the viewer, that is egocentrically, or independently of the position of the viewer, that is allocentrically (Yeap 2014). In our models, we do not focus on navigational mechanisms but decision-making processes, and we use the cognitive map as a useful mathematical tool to model spatial information.…”

Section: Discussionmentioning

confidence: 99%

Detecting effects of spatial memory and dynamic information on animal movement decisions

Schlägel

Lewis

2014

Methods Ecol Evol

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Summary 1.Animals of many species demonstrate movement behaviour in which decisions are based on a variety of information. Effects of resources have been studied widely, often under the assumption that the environment is constant over the course of the study. Much less understood is the role of dynamic information about continuously changing resource availability and past experiences. Such information can be acquired during movement bouts and used for future decisions via memory. 2. We present a new class of animal movement models, which incorporates a dynamic interplay of movement and information gain processes. Information is contained in a dynamic cognitive map. As an example, we consider time since last visit to locations and how this interacts with environmental information to shape movement patterns. Our models can be fitted to empirical movement trajectories and are therefore amenable to statistical inference (parameter estimation and model selection). 3. We tested the functionality of our method using simulated data. Parameter estimates were in accordance with true values used in the simulations, and model selection via Bayesian information criterion (BIC) was able to identify true underlying mechanisms of simulated trajectories. Thus, if time since last visit to locations influences movement decisions, our method is able to detect this mechanism. 4. The use of dynamic information such as the one demonstrated in our example models likely requires cognitive abilities such as spatial memory. Therefore, our method can be used to reveal evidence of spatial memory in empirical movement data. Understanding the components of individual movement decisions and their interactions ultimately helps us to predict how population distribution patterns respond to environmental changes, such as landscape fragmentation and changing climate.

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“…Two types of maps can be used to provide survey type of advice. Egocentric maps provide information based on the position of the users while allocentric maps do not [37]. People with AD are able to plan a route based on an allocentric or an egocentric map but are significantly impaired in the use of allocentric maps for navigation and in translating allo-to egocentric information compared to neurotypical people [36].…”

Section: What Was the Content Of The Navigation Advice?mentioning

confidence: 99%

A Systematic Review of Navigation Assistance Systems for People With Dementia

Pillette

Moreau

Normand

et al. 2023

IEEE Trans. Visual. Comput. Graphics

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Technological developments provide solutions to alleviate the tremendous impact on the health and autonomy due to the impact of dementia on navigation abilities. We systematically reviewed the literature on devices tested to provide assistance to people with dementia during indoor, outdoor and virtual navigation (PROSPERO ID number: 215585). Medline and Scopus databases were searched from inception. Our aim was to summarize the results from the literature to guide future developments. Twenty-three articles were included in our study. Three types of information were extracted from these studies. First, the types of navigation advice the devices provided were assessed through: (i) the sensorial modality of presentation, e.g., visual and tactile stimuli, (ii) the navigation content, e.g., landmarks, and (iii) the timing of presentation, e.g., systematically at intersections. Second, we analyzed the technology that the devices were based on, e.g., smartphone. Third, the experimental methodology used to assess the devices and the navigation outcome was evaluated. We report and discuss the results from the literature based on these three main characteristics. Finally, based on these considerations, recommendations are drawn, challenges are identified and potential solutions are suggested. Augmented reality-based devices, intelligent tutoring systems and social support should particularly further be explored.

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On Egocentric and Allocentric Maps

Cited by 6 publications

References 29 publications

Landmark selection for route instructions: At which corner of an intersection is the preferred landmark located?

Landmark selection for route instructions: At which corner of an intersection is the preferred landmark located?

Detecting effects of spatial memory and dynamic information on animal movement decisions

A Systematic Review of Navigation Assistance Systems for People With Dementia

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