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Greater Disruption Due to Failure of Inhibitory Control on an Ambiguous Distractor

Tsushima, Yoshiaki and Sasaki, Yuka and Watanabe, Takeo (2006) Greater Disruption Due to Failure of Inhibitory Control on an Ambiguous Distractor. Science, 314 (5806). pp. 1786-1788. ISSN 0036-8075. doi:10.1126/science.1133197.

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Considerable evidence indicates that a stimulus that is subthreshold, and thus consciously invisible, influences brain activity and behavioral performance. However, it is not clear how subthreshold stimuli are processed in the brain. We found that a task-irrelevant subthreshold coherent motion led to a stronger disturbance in task performance than did suprathreshold motion. With the subthreshold motion, activity in the visual cortex measured by functional magnetic resonance imaging was higher, but activity in the lateral prefrontal cortex was lower, than with suprathreshold motion. These results suggest that subthreshold irrelevant signals are not subject to effective inhibitory control.

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Additional Information:© 2006 American Association for the Advancement of Science. Received 31 July 2006; accepted 20 October 2006. This study is funded by grants from NIH (R01 EY015980 and R21 EY017737), NSF (BCS-0345746, BCS-0549036, and BCS-PR04-137 Center of Excellence for Learning in Education, Science, and Technology), and the Human Frontier Science Program Organization (RGP18/2004) to T.W., and by grants from National Center for Research Resources (P41RR14075), the Mental Illness and Neuroscience Discovery Institute, the Athinoula A. Martinos Center for Biomedical Imaging, and the ERATO Shimojo Implicit Brain Function project to Y.S. We thank P. Cavanagh, Y. Kamitani, M. Kawato, I. Motoyoshi, J. Nanez, M. Sakagami, S. Shimojo, and the members of Vision Sciences Laboratory at Boston University for their comments on the study and N. Ito and Y. Yotsumoto for technical assistance.
Funding AgencyGrant Number
NIHR01 EY015980
NIHR21 EY017737
Human Frontier Science ProgramRGP18/2004
Mental Illness and Neuroscience Discovery InstituteUNSPECIFIED
Athinoula A. Martinos Center for Biomedical ImagingUNSPECIFIED
ERATO Shimojo Implicit Brain Function ProjectUNSPECIFIED
Issue or Number:5806
Record Number:CaltechAUTHORS:20141114-091646218
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:51751
Deposited By: Tony Diaz
Deposited On:14 Nov 2014 22:20
Last Modified:10 Nov 2021 19:15

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