TY - GEN
T1 - Development of a wide-view visual presentation system for functional MRI studies of peripheral visual
AU - Wang, Bin
AU - Wu, Jinglong
AU - Yang, Jia Jia
AU - Hikino, Yuu
AU - Takahashi, Satoshi
AU - Yan, Tianyi
AU - Ohno, Seiichiro
AU - Kanazawa, Susumu
PY - 2013
Y1 - 2013
N2 - In present paper, we described a novel wide-view visual presentation system for fMRI studies. To achieve a wide field view, a translucent spherical screen with a curvature radius of 30 mm was placed 30 mm away from the subjects' eyes. The subjects wore contact lenses that enabled them to focus on the screen, and the resulting visual field reached 120°. Then, high resolution computer-generated images were projected onto the translucent hemispheric screen inside the MRI bore. Signal-to-noise ratio valuation experiment was performed to evaluate the clarity and quality of the MRI images. In addition, we successfully applied this visual presentation system to studies of visual retinotopic mapping and object perception neural function in the peripheral visual field. Our study demonstrated that the system is compatible with the MRI environment. Moreover, this system was more effective at mapping checkerboard stimuli in V1-V3, and successfully located several classical category-selective areas, including the face-selective area (FFA), occipital face area (OFA), house-selective area (PPA), transverse occipital sulcus (TOS), lateral occipital complex (LOC) in higher-level visual areas. In conclusion, the wide-view visual presentation system within the MRI environment can be applied to many kinds of fMRI studies of peripheral vision.
AB - In present paper, we described a novel wide-view visual presentation system for fMRI studies. To achieve a wide field view, a translucent spherical screen with a curvature radius of 30 mm was placed 30 mm away from the subjects' eyes. The subjects wore contact lenses that enabled them to focus on the screen, and the resulting visual field reached 120°. Then, high resolution computer-generated images were projected onto the translucent hemispheric screen inside the MRI bore. Signal-to-noise ratio valuation experiment was performed to evaluate the clarity and quality of the MRI images. In addition, we successfully applied this visual presentation system to studies of visual retinotopic mapping and object perception neural function in the peripheral visual field. Our study demonstrated that the system is compatible with the MRI environment. Moreover, this system was more effective at mapping checkerboard stimuli in V1-V3, and successfully located several classical category-selective areas, including the face-selective area (FFA), occipital face area (OFA), house-selective area (PPA), transverse occipital sulcus (TOS), lateral occipital complex (LOC) in higher-level visual areas. In conclusion, the wide-view visual presentation system within the MRI environment can be applied to many kinds of fMRI studies of peripheral vision.
KW - Visual cortex
KW - Visual presentation
KW - Wide-view
KW - fMRI
UR - http://www.scopus.com/inward/record.url?scp=84892932430&partnerID=8YFLogxK
U2 - 10.1007/978-3-319-02753-1_28
DO - 10.1007/978-3-319-02753-1_28
M3 - Conference contribution
AN - SCOPUS:84892932430
SN - 9783319027524
T3 - Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
SP - 277
EP - 286
BT - Brain and Health Informatics - International Conference, BHI 2013, Proceedings
T2 - International Conference on Brain and Health Informatics, BHI 2013
Y2 - 29 October 2013 through 31 October 2013
ER -