Campus Units

Psychology

Document Type

Article

Publication Version

Accepted Manuscript

Publication Date

8-21-2017

Journal or Book Title

Memory & Cognition

Volume

46

Issue

1

First Page

89

Last Page

99

DOI

10.3758/s13421-017-0747-7

Abstract

Navigation is influenced by body-based self-motion cues that are integrated over time, in a process known as path integration, as well as by environmental cues such as landmarks and room shape. In two experiments we explored whether humans combine path integration and environmental cues (Exp. 1: room shape; Exp. 2: room shape, single landmark, and multiple landmarks) to reduce response variability when returning to a previously visited location. Participants walked an outbound path in an immersive virtual environment before attempting to return to the path origin. Path integration and an environmental cue were both available during the outbound path, but experimental manipulations created single- and dual-cue conditions during the return path. The response variance when returning to the path origin was reduced when both cues were available, consistent with optimal integration predicted on the basis of Bayesian principles. The findings indicate that humans optimally integrate multiple spatial cues during navigation. Additionally, a large (but not a small) cue conflict caused participants to assign a higher weight to path integration than to environmental cues, despite the relatively greater precision afforded by the environmental cues.

Comments

This article is published as Sjolund, L.A., Kelly, J.W. & McNamara, T.P. Optimal combination of environmental cues and path integration during navigation. Memory & Cognition, (2018) 46(1);89-99. doi: 10.3758/s13421-017-0747-7. Posted with permission.

Copyright Owner

Psychonomic Society, Inc.

Language

en

File Format

application/pdf

Published Version

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