A comparative analysis of spatial memory processes

摘要: This paper reviews spatial memory processes in three highly evolved taxa: hymenoptera, birds and mammals. In these taxa, the goal location can be memorized egocentrically as a vector specifying head-referred direction distance to goal, and/or exocentrically view layout of surrounding landmarks perceived by animal when standing at goal. The egocentric coding process requires path-integration mechanism update function animal's current position. Changes are estimated allothetically (by reference an external compass) idiothetically (on basis internal movement-related information) mammals, probably both ways birds. Computer simulations have shown that is very sensitive random errors occurring idiothetic but not allothetic estimations. When using exocentric process, hymenoptera store bearings angular sizes compass-oriented colour snapshot taken They may then return moving so reduce discrepancy between snapshot. this accounted for neurobiologically plausible model which highlights fundamental role exploration environment. way implemented less clear.