The attentional blink unveils the interplay between conscious perception, spatial attention and working memory encoding.
Eyal Alef Ophir, Guido Hesselmann, Dominique Lamy
Consciousness and Cognition October 1, 2020 DOI: 10.1016/j.concog.2020.103008 (opens in new tab)
Study at a glance
AI-extracted from the abstract| Characteristics | Experimental study Peer reviewed |
|---|---|
| Keywords | Attentional blink Attentional capture Awareness Conscious perception Fragile memory Phenomenal consciousness Spatial attention Working memory |
| Citations | 5 |
| Key findings | Consciously perceiving a task-relevant event is necessary but not sufficient for causing the attentional blink, and spatial attention to T1 is neither necessary nor sufficient for eliciting it. |
Abstract
Our ability to perceive two events in close temporal succession is severely limited, a phenomenon known as the attentional blink. While the blink has served as a popular tool to prevent conscious perception, there is less research on its causes, and in particular on the role of conscious perception of the first event in triggering it. In three experiments, we disentangled the roles of spatial attention, conscious perception and working memory (WM) in causing the blink. We show that while allocating spatial attention to T1 is neither necessary nor sufficient for eliciting a blink, consciously perceiving it is necessary but not sufficient. When T1 was task irrelevant, consciously perceiving it triggered a blink only when it matched the attentional set for T2. We conclude that consciously perceiving a task-relevant event causes the blink, possibly because it triggers encoding of this event into WM. We discuss the implications of these findings for the relationship between spatial attention, conscious perception and WM, as well as for the distinction between access and phenomenal consciousness.