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 OJMI  Vol.2 No.3 , September 2012
Eye Movements Provide Inhibitory Inputs to the Occipito-Temporal Region
Abstract: Eye movements play an important role in attention and visual processing. However, the manner in which eye move-ments are involved in object processing is not clear. The aim of this study is to examine the effects of eye movements on object-processing areas in the occipito-temporal region. Eye movements are always accompanied by visual perception; therefore, the effects of eye movements on object-processing areas in which visual object information is sent via eye movements instead of via retinal inputs of visual images must be measured. For this purpose, response to an eye- drawing stimulation in subjects who drew pictures of faces or buildings by their moving eyes under closed-eye condi-tions was measured by functional magnetic resonance imaging. Functional areas in the occipito-temporal region showed negative responses to the eye-drawing stimulation, and the pattern of negative activation maps in the region was almost the same as that of positive activation maps observed after visual image stimulation. Responses in cate-gory-selective area showed category dependency to the eye-drawing stimulation. This suggests that eye movements provide inhibitory inputs to the object-processing areas in the occipito-temporal region, and these inputs may modulate visual inputs to these areas coming through the retina in the visual perception process.
Cite this paper: Y. Sung, H. Tsubokawa, Y. Kim and S. Ogawa, "Eye Movements Provide Inhibitory Inputs to the Occipito-Temporal Region," Open Journal of Medical Imaging, Vol. 2 No. 3, 2012, pp. 85-89. doi: 10.4236/ojmi.2012.23015.
References

[1]   D. Noton and L. W. Stark, “Scanpaths in Eye Movements during Pattern Perception,” Science, Vol. 171, No. 3968, 1971, pp. 308-311. doi:10.1126/science.171.3968.308

[2]   I. A. Rybak, V. I. Gusakova, A. V. Golovan, L. N. Podladchikova and N. A. Shevtsova, “A Model of AttentionGuided Visual Perception and Recognition,” Vision Research, Vol. 38, No. 15-16, 1998, pp. 2387-2400. doi:10.1016/S0042-6989(98)00020-0

[3]   M. Rucci, R. Iovin, M. Poletti and F. Santini, “Miniature Eye Movements Enhance Fine Spatial Detail,” Nature, Vol. 447, No. 7146, 2007, pp. 851-854.

[4]   L. Saether, W. Van Belle, B. Laeng T. Brennen and M. Overvoll, “Anchoring Gaze When Categorizing Faces’ Sex: Evidence from Eye-Tracking Data,” Vision Research, Vol. 49, No. 23, 2009, pp. 2870-2880. doi:10.1016/j.visres.2009.09.001

[5]   Z. M. Hafed and R. J. Krauzlis, “Ongoing Eye Movements Constraint Visual Perception,” Nature Neuroscience, Vol. 9, No. 11, 2006, pp. 1449-1457. doi:10.1038/nn1782

[6]   B. Laeng and D.-S. Teodorescu, “Eye Scanpaths during Visual Imagery Reenact Those of Perception of the Same Visual Scene,” Cognitive Science, Vol. 26, No. 2, 2002, pp. 207-231. doi:10.1207/s15516709cog2602_3

[7]   S. Brandt and L. W. Stark, “Spontaneous Eye Movements during Visual Imagery Reflect the Content of the Visual Scene,” Journal of Cognitive Neuroscience, Vol. 9, No. 1, 1997, pp. 27-38. doi:10.1162/jocn.1997.9.1.27

[8]   R. A. Epstein and N. A. Kanwisher, “A Cortical Representtation of the Local Visual Environment,” Nature, Vol. 391, No. 6676, 1998, pp. 598-601. doi:10.1038/33402

[9]   M. L. Gomo-Tempini and C. J. Price, “Identification of Famous Faces and Buildings,” Brain, Vol. 124, No. 19, 2001, pp. 2087-2097. doi:10.1093/brain/124.10.2087

[10]   K. Grill-Spector, “The Neural Basis of Object Perception,” Current Opinion in Neurobiology, Vol. 13, No. 2, 2003, pp. 159-166. doi:10.1016/S0959-4388(03)00040-0

[11]   N. Kanwisher, J. McDermott and M. M. Chun, “The Fusiform Face Area: A Module in Human Extrastriate Cortex Specialized for Face Perception,” Journal of Neuroscience, Vol. 17, No. 11, 1997, pp. 4302-4311.

[12]   Y. Sung and S. Ogawa, “A Property of Face Representation at the Categorical Level,” Neuroscience Letters, Vol. 448, No. 1, 2008, pp. 1-5. doi:10.1016/j.neulet.2008.09.053

[13]   C. Summerfield, E. Egner, M. Greene, E. Koechlin, J. Mangels and J. Hirsch, “Predictive Codes for Forthcoming Perception in the Frontal Cortex,” Science, Vol. 314 No. 5803, 2006, pp. 1311-1314. doi:10.1126/science.1132028

[14]   M. D. Fox and M. E. Raichle, “Spontaneous Fluctuations in Brain Activity Observed with Functional Magnetic Resonance Imaging,” Nature Reviews Neuroscience, Vol. 8, No. 9, 2007, pp. 700-711. doi:10.1038/nrn2201

 
 
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