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How useful are landmarks when learning a route in a virtual environment? Evidence from typical development and Williams syndrome

Farran, Emily K., Courbois, Yannick, Van Herwegen, Jo and Blades, Mark (2012) How useful are landmarks when learning a route in a virtual environment? Evidence from typical development and Williams syndrome JOURNAL OF EXPERIMENTAL CHILD PSYCHOLOGY, 111 (4). pp. 571-586.

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The ability to learn a route through a virtual environment was assessed in 19 older children and adults with Williams syndrome (WS) and 40 typically developing (TD) children aged 6–9 years. In addition to comparing route-learning ability across groups, we were interested in whether participants show an adult-like differentiation between “useful” and “less useful” landmarks when learning a route and the relative salience of landmark position versus landmark identity. Each virtual environment consisted of a brick wall maze with six junctions. There were 16 landmarks in the maze, half of which were on the correct path and half on incorrect paths. Results showed that both groups could learn each route to criterion (two successful completions of a route without error). During the learning phase, the WS group produced more errors than the TD group and took longer to reach criterion. This was predominantly due to the large number of perseverative errors (i.e., errors that were made at the same choice point on consecutive learning trials) made by the WS group relative to the TD children. We suggest that this reflects a difficulty in inhibiting erroneous responses in WS. During the test phase, the TD group showed stronger recall of landmarks adjacent to junctions (more useful landmarks) than of landmarks along path sections (less useful landmarks) independent of each individual’s level of nonverbal ability. This pattern was also evident in the WS group but was related to level of nonverbal maturation; the differentiation between recall of junction and path landmarks increased as nonverbal ability increased across WS participants. Overall, the results demonstrate that individuals with WS can learn a route but that the development of this ability is atypical.

Item Type: Article
Divisions : Faculty of Health and Medical Sciences > School of Psychology
Authors :
Farran, Emily
Courbois, Yannick
Van Herwegen, Jo
Blades, Mark
Date : 1 April 2012
DOI : 10.1016/j.jecp.2011.10.009
Copyright Disclaimer : Copyright 2011 Elsevier Inc. All rights reserved.
Uncontrolled Keywords : Spatial cognition, Route learning, Navigation, Virtual reality, Williams syndrome, Landmarks
Depositing User : Diane Maxfield
Date Deposited : 27 Jun 2019 15:13
Last Modified : 27 Jun 2019 15:13

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