Spatial cues in memory for movement.

The purpose of this experiment was to investigate further the finding that location cues provide a reliable source of movement information in memory. Three movement conditions were employed: location cues only, extent cues only, and both location and extent cues. These movement conditions were observed over three retention-interval conditions: reproduction immediately following presentation of the standard and reproduction following a 20-sec delay which was either unfilled or filled with an attention-demanding task. The results tended to support the notion that location cues provide the more reliable source of information in that the extent condition had higher absolute and variable error than the other two conditions which were found not to be reliably different.