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Author Sunny, Meera Mary ♦ Mühlenen, Adrian von
Source IIT Gandhinagar
Content type Text
Publisher Springer Link
File Format HTM / HTML
Language English
Subject Domain (in DDC) Philosophy & psychology ♦ Psychology ♦ Perception, movement, emotions & drives
Subject Keyword Attention ♦ Attentional capture ♦ Motion perception ♦ Visual masking
Abstract Sunny and von Mühlenen (Psychonomic Bulletin & Review, 18, 1050–1056, 2011) showed that an onset of motion captured attention only when the motion was jerky (refreshed at 8 or 17 Hz), but not when it was smooth (33 or 100 Hz). However, it remained unclear why the onset of jerky motion captures attention. In the present study, we systematically tested the role of different aspects of jerky motion in capturing attention. Simple flicker without motion did not capture attention in the same way as jerky motion (Exp. 1). An abrupt displacement between 0.26° and 1.05° captured attention, irrespective of whether the stimulus subsequently continued to move smoothly (Exp. 2) or whether it remained stationary (Exps. 3 and 4). A displaced stimulus that was preceded briefly at the new location by a figure-8 placeholder did not capture attention (Exp. 5). These results are explained within a masking account, according to which abrupt onsets and abrupt displacements receive a processing advantage because they escape forward masking by the preceding figure-8 placeholders.
ISSN 19433921
Learning Resource Type Article
e-ISSN 1943393X