Homing in humans: A different look

A current model holds that the long-distance homing abilities of free-ranging mammals rest primarily on a strategy of course reversal, based on outward journey information. In this study, I measured the ability to orient toward home in humans displaced under conditions that promote the use of this strategy, namely along an outward route that was direct, and the main bearing of which could be extrapolated by reference to a pre-existant mental map and by visual backup during the outward journey. Even though the individual course estimates obtained did show a certain amount of dispersion and/or error, they were more accurate and less dispersed than in experiments by other authors, where subjects could not use this strategy, because they were displaced blindfolded and/or along circuitous routes.

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