Navigation of a Small Mammal by Dead Reckoning and Local Cues

Etienne, Ariane S.

doi:10.1111/1467-8721.ep11509737

Cited by 95 publications

(72 citation statements)

References 6 publications

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“…This conclusion is reinforced by the observation that on inbound journeys, even though the rat was facing the box, the correction of the mismatch did not begin until the rat was within 10 -15 cm of the box. The ability of rodents to update their position representation on the basis of self-motion cues has been demonstrated directly by behavioral experiments (O'Keefe, 1976;Mittelstaedt and Mittelstaedt, 1982;Cheng, 1986;Etienne et al, 1986;Sharp et al, 1990;Etienne, 1992;Seguinot et al, 1993;Knierim et al, 1995;Alyan, 1996). Several theoretical models have attempted to account for this phenomenon (Worden, 1992;Wan et al, 1994;Maurer and Seguinot, 1995;Redish and Touretzky, 1996;McNaughton et al, 1996).…”

Section: Discussionmentioning

confidence: 99%

Dynamics of Mismatch Correction in the Hippocampal Ensemble Code for Space: Interaction between Path Integration and Environmental Cues

1996

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Populations of hippocampal neurons were recorded simultaneously in rats shuttling on a track between a fixed reward site at one end and a movable reward site, mounted in a sliding box, at the opposite end. While the rat ran toward the fixed site, the box was moved. The rat returned to the box in its new position. On the initial part of all journeys, cells fired at fixed distances from the origin, whereas on the final part, cells fired at fixed distances from the destination. Thus, on outward journeys from the box, with the box behind the rat, the position representation must have been updated by path integration. Farther along the journey, the place field map became aligned on the basis of external stimuli. The spatial representation was quantified in terms of population vectors. During shortened journeys, the vector shifted from an alignment with the origin to an alignment with the destination. The dynamics depended on the degree of mismatch with respect to the full-length journey. For small mismatches, the vector moved smoothly through intervening coordinates until the mismatch was corrected. For large mismatches, it jumped abruptly to the new coordinate. Thus, when mismatches occur, path integration and external cues interact competitively to control place-cell firing.When the same box was used in a different environment, it controlled the alignment of a different set of place cells. These data suggest that although map alignment can be controlled by landmarks, hippocampal neurons do not explicitly represent objects or events.

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Section: Discussionmentioning

confidence: 99%

Dynamics of Mismatch Correction in the Hippocampal Ensemble Code for Space: Interaction between Path Integration and Environmental Cues

1996

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“…As stated previously, in the absence of any discriminative cue, the rats could still rely on the vestibular and kinesthetic information to orient themselves in the maze (Schaeppi et al 1991;Ossenkopp and Hargreaves 1993), even with an interruption procedure after prolonged training (Lavenex 1995). Thus, in conditions in which the animals do not benefit from any discriminative cue, they can rely on the path integration mechanism to know their actual position with respect to a given point of departure (Mittelstaedt and Mittelstaedt 1980;Etienne 1992). One can thus infer that the location of the olfactory cues is linked to this reference framework.…”

Section: Olfactory Cues In a Spatial Representationmentioning

confidence: 94%

Integration of olfactory information in a spatial representation enabling accurate arm choice in the radial arm maze.

Lavenex

Schenk²

1996

Learn. Mem.

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“…Interestingly the taxon system predominates over the locale system in the case of a visible goal, even though, in this case, it results in sub-optimal navigation behaviour. Etienne (1992) reports experiments that show the existence, in the golden hamster, of independent wayfinding mechanisms derived from different sensory modalities, specifically, by dead-reckoning (proprioception) and with respect to (visual) landmarks.…”

Section: Animal Navigationmentioning

confidence: 99%

Spatial Representation for Navigation in Animats

Prescott

1996

Adaptive Behavior

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This article considers the problem of spatial representation for animat navigation systems. It is proposed that the global navigation task, or wayfinding, is best supported by multiple interacting sub-systems, each of which builds its own partial representation of relevant world knowledge. Evidence from the study of animal navigation is reviewed to demonstrate that similar principles underlie the wayfinding behaviour of animals including man. A simulated wayfinding system is described that embodies and illustrates several of the themes identified with animat navigation. This system constructs a network of partial models of the quantitative spatial relations between groups of salient landmarks. Navigation tasks are solved by propagating egocentric view information through this network using a simple but effective heuristic to arbitrate between multiple solutions.

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Navigation of a Small Mammal by Dead Reckoning and Local Cues

Cited by 95 publications

References 6 publications

Dynamics of Mismatch Correction in the Hippocampal Ensemble Code for Space: Interaction between Path Integration and Environmental Cues

Dynamics of Mismatch Correction in the Hippocampal Ensemble Code for Space: Interaction between Path Integration and Environmental Cues

Integration of olfactory information in a spatial representation enabling accurate arm choice in the radial arm maze.

Spatial Representation for Navigation in Animats

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