Idiothetic

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Idiothetic literally means "self-proposition" (Greek derivation), and is used in navigation models (e.g., of a rat in a maze) to describe the use of self-motion cues, [1] rather than allothetic, or external, cues such as landmarks, to determine position and movement. [2] The word is sometimes also spelled "ideothetic" (e.g., Chen et al, 1994 [3] ). Idiothetic cues include vestibular, optic flow and proprioception. Idiothetic cues are important for the type of navigation known as path integration [4] [5] in which subjects navigate purely using such self-motion cues. This is achieved by an animal through the signals generated by angular and linear accelerations in the course of its exploration. [6] This information generates and updates a vector towards the starting point and an accurate path for return. [6] The spider Cupiennius salei has been known to posses this idiothetic orientation, demonstrating its higher cognitive abilities. [7]

The term idiothetic is also used in robotics [8] and in personality psychology. Idiothetic psychology of personality suggests that personality description follows idiographic principles, while personality development centres around nomothetic principles. [9] Idiothetic-based psychological theories include James Lamiell's Critical Personalism model, George Kelly's Role Repertory Test, [10] and the narrative approaches that focus on the impact of life stories.

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<span class="mw-page-title-main">Place cell</span> Place-activated hippocampus cells found in some mammals

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<span class="mw-page-title-main">Path integration</span> Means of dead reckoning used by animals

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<span class="mw-page-title-main">Animal navigation</span> Ability of many animals to find their way accurately without maps or instruments

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<span class="mw-page-title-main">T-maze</span> Forked passage used in animal cognition tests

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<span class="mw-page-title-main">Cincinnati Water Maze</span> Water maze used in rodent experiments

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Timothy P. McNamara is a psychologist currently serving as the Ginny and Conner Searcy Dean of the College of Arts and Science at Vanderbilt University. He heads the Spatial Memory & Navigation Lab

References

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