Abstract
Does spatial separation incur a processing time requirement before precise alignment judgements can occur? Alignment thresholds for separated lines are measured for exposure durations from 27 to 500 ms, with and without post-masks. The effect of masks on visibility is controlled. Unlike without a post-mask, with an effective post-mask, alignment thresholds improve substantially with time, i.e. in square-root fashion. Alignment across space may be important for further shape analysis. Threshold improvement is probably not explained by a spatial scale shift of visual analysis over time. A higher-order collection stage appears to refine relative position information for up to 200 ms.
Original language | English |
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Pages (from-to) | 2305-2313 |
Number of pages | 9 |
Journal | Vision Research |
Volume | 47 |
Issue number | 17 |
Early online date | 5 Jul 2007 |
DOIs | |
Publication status | Published - 1 Aug 2007 |
Externally published | Yes |