Journal
JOURNAL OF VISION
Volume 8, Issue 14, Pages -Publisher
ASSOC RESEARCH VISION OPHTHALMOLOGY INC
DOI: 10.1167/8.14.1
Keywords
attention; eye movements; space and scene perception
Categories
Funding
- German Science Foundation DFG [HA2630/4, LA-952/2, LA-952/3]
- Federal Ministry of Education and Research [BMBF 01GW0653]
- EU
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Peri-saccadic perception experiments have revealed a multitude of mislocalization phenomena. For instance, a briefly. ashed stimulus is perceived closer to the saccade target, whereas a displacement of the saccade target goes usually unnoticeable. This latter saccadic suppression of displacement has been explained by a built-in characteristic of the perceptual system: the assumption that during a saccade, the environment remains stable. We explored whether the mislocalization of a briefly. ashed stimulus toward the saccade target also grounds in the built-in assumption of a stable environment. If the mislocalization of a peri-saccadically. ashed stimulus originates from a post-saccadic alignment process, an additional location marker at the position of the upcoming flash should counteract compression. Alternatively, compression might be the result of peri-saccadic attentional phenomena. In this case, mislocalization should occur even if the position of the. ashed stimulus is marked. When subjects were asked about their perceived location, they mislocalized the stimulus toward the saccade target, even though they were fully aware of the correct stimulus location. Thus, our results suggest that the uncertainty about the location of a. ashed stimulus is not inherently relevant for compression.
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