From: Sandwich masking eliminates both visual awareness of faces and face-specific brain activity through a feedforward mechanism Journal of Vision. 2011;11(7):3. doi:10.1167/11.7.3 Figure Legend: Stimuli and task. In each trial, five consecutive images were presented in quick succession at fixation. The target image (i.e., face, house, or blank) was always presented in the third temporal position and was either immediately preceded and followed by non-object scrambled masks (masked/subliminal condition) or preceded and followed by non-object scrambled masks with a 100-ms period between images (unmasked/supraliminal condition). (A, B) In the color detection task, participants were required to make a speeded response to the infrequent color-tinted masks. (C, D) In the two-alternative forced choice categorization task, participants were required to identify target object stimuli, masked or unmasked, as being either a face or a house. Date of download: 10/21/2017 The Association for Research in Vision and Ophthalmology Copyright © 2017. All rights reserved.