Abstract：
:A current controversy exists about the relationship between spatial attention and conscious perception. While some authors propose that these phenomena are intimately related (Bartolomeo, 2008; Chun & Marois, 2002; O'Regan & Noë, 2001; Posner, 1994), others report dissociations between them (Kentridge et al., 1999; Koch & Tsuchiya, 2007; Wyart & Tallon-Baudry, 2008). However, spatial attention is not a unitary mechanism, and it is possible that not all forms of attention dissociate from conscious perception. In the present study we used a paradigm in which endogenous and exogenous forms of attention are orthogonally manipulated in order to investigate their relation with conscious perception within the same design. By analyzing two different cue-related components, our results demonstrated that while endogenous attention was electrophysiologically dissociated from conscious perception, exogenous attention was not, consistent with the hypothesis that exogenous attention is an important antecedent of our conscious experience. Our results support previous claims of dissociations between some forms of spatial attention and conscious perception, but also highlight the importance of exogenous orienting on the selection of information for conscious access.
journal_name
Neuropsychologiajournal_title
Neuropsychologiaauthors
Chica AB,Botta F,Lupiáñez J,Bartolomeo Pdoi
10.1016/j.neuropsychologia.2011.12.020subject
Has Abstractpub_date
2012-04-01 00:00:00pages
621-9issue
5eissn
0028-3932issn
1873-3514pii
S0028-3932(11)00565-3journal_volume
50pub_type
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