Cite as:
Lathrop W B, Bridgeman B, Tseng P, 2011, "Perception in the absence of attention: Perceptual processing in the Roelofs effect during inattentional blindness" Perception 40(9) 1104 – 1119
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Perception in the absence of attention: Perceptual processing in the Roelofs effect during inattentional blindness

William B Lathrop, Bruce Bridgeman, Philip Tseng

Received 26 October 2010, in revised form 4 September 2011

Abstract. We present two experiments that examine sensory processing during conditions of inattentional blindness. A large rectangular frame that normally induces a Roelofs effect can go unreported due to inattentional blindness. Even when participants fail to report the frame, they mislocalize an attended target in a way consistent with having processed the frame. A more demanding visuospatial distractor task can increase inattentional blindness during conditions of divided attention, but has no effect on the spatial mislocalization illusion. Our results support theories that postulate a significant amount of perceptual processing in the absence of attention.

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