Abstract
The purpose of this study was to determine whether the detectability of a uniquely oriented line element in a field of uniformly oriented line elements depends on element length. Displays containing various numbers of elements were presented briefly and followed by a mask. The length and orientation of the elements were varied. With longer (1.0-deg) elements, detection performance varied little with the number of elements present. With shorter (0.25-deg) elements, performance worsened as the element number increased, especially when the uniformly oriented elements were oblique. It seems that rapid spatially parallel processes facilitate detection of targets in many-element displays of long elements but not of short elements.
| Original language | English |
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| Pages (from-to) | 485-497 |
| Number of pages | 12 |
| Journal | Spatial vision |
| Volume | 12 |
| Issue number | 4 |
| Publication status | Published - Oct 1999 |