The Neural Fate of Consciously Perceived and Missed Events in the Attentional Blink

René Marois, Do Joon Yi, Marvin M. Chun

Research output: Contribution to journalArticlepeer-review

247 Citations (Scopus)


Cognitive models of attention propose that visual perception is a product of two stages of visual processing: early operations permit rapid initial categorization of the visual world, while later attention-demanding capacity-limited stages are necessary for the conscious report of the stimuli. Here we used the attentional blink paradigm and fMRI to neurally distinguish these two stages of vision. Subjects detected a face target and a scene target presented rapidly among distractors at fixation. Although the second, scene target frequently went undetected by the subjects, it nonetheless activated regions of the medial temporal cortex involved in high-level scene representations, the parahippocampal place area (PPA). This PPA activation was amplified when the stimulus was consciously perceived. By contrast, the frontal cortex was activated only when scenes were successfully reported. These results suggest that medial temporal cortex permits rapid categorization of the visual input, while the frontal cortex is part of a capacity-limited attentional bottleneck to conscious report.

Original languageEnglish
Pages (from-to)465-472
Number of pages8
Issue number3
Publication statusPublished - 2004 Feb 5

Bibliographical note

Funding Information:
We wish to thank Todd Kelley for technical assistance and Ye-Seul Choi for assistance with data analysis. This work was supported by NSF grant #0094992 and in part by NIH R01 EY014193.

All Science Journal Classification (ASJC) codes

  • Neuroscience(all)


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