Abstract
When two targets (T1 & T2) are presented in rapid
succession, observers often fail to report T2 if they attend
to T1. The bottleneck theory proposes that this attentional
blink (AB) is due to T1 occupying a slow processing stage
when T2 is presented. Accordingly, if increasing T1
difficulty increases T1 processing time, this should cause a
greater AB. The attention capture hypothesis suggests that
T1 captures attention, which cannot be reallocated to T2 in
time. Accordingly, if increasing T1 difficulty decreases T1
saliency, this should cause a smaller AB. In two
experiments we find support for an attention capture
hypothesis. In Experiment 1 we find that AB magnitude
increases with T1 contrast – but only when T1 is unmasked.
In Experiment 2 we add Gaussian noise to targets and vary
T1 contrast but keep T1 ‘s SNR constant. Again we find
that AB magnitude increases with T1 contrast.
Original language | English |
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Title of host publication | Proceedings of the Cognitive Science Society's Annual meeting 2011 |
Publication date | 2011 |
Publication status | Published - 2011 |
Event | Cognitive Science Society's Annual meeting - Boston, Massachusetts, USA Duration: 1 Jan 2011 → … |
Conference
Conference | Cognitive Science Society's Annual meeting |
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City | Boston, Massachusetts, USA |
Period | 01/01/2011 → … |
Keywords
- Attentional Blink
- Spatial Attention
- Human Vision
- First Target Interference
- Temporal Attention
- Attention Capture