Acquisition of locational information about reference points during locomotion: The role of central information processing

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Abstract
The role of central information processing for the acquisition of information about locations in a large‐scale environment was investigated in two experiments. Subjects with and without a concurrent backwards counting task traversed a locomotion path repeatedly attempting to learn the locations of six reference points designated along the path, then estimated direction and distance numerically to these reference points when traversing the same path further times in a subsequent test phase. The main dependent measures were the latencies and the constant and variable errors of the estimates. The results indicated that acquisition of information about the locations was disrupted when central information processing was interfered with. However, central processing seemed to be less critical for long‐term storage of information about the locomotion path. The latter type of information could thus be used by the subjects with the concurrent task when estimating the locations. Finally, the results suggested that information about the path was used also by the subjects without any concurrent task when the test phase required them to remain oriented relative to several reference points at the same time.

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