TY - JOUR
T1 - Spatial and temporal properties of interocular timing differences in multifocal visual evoked potentials
AU - Shimada, Yoshiaki
AU - Horiguchi, Masayuki
AU - Nakamura, Akira
N1 - Funding Information:
Grant No. 13877293 and 14571692 from the Ministry of Education, Culture, Sports, Science and Technology, Japan.
PY - 2005/2
Y1 - 2005/2
N2 - The multifocal VEPs (mfVEPs) obtained from the right and left eyes are practically identical in shape and amplitude, however small differences in the implicit times (ITs) have been reported. We have analyzed the ITs in detail to show that they are dependent on the radial location of the stimulus in the visual field. The differences are large, up to 8.3 ms, near the horizontal meridian, and are probably due to differences in the distances of the nasal and temporal ganglion cell axons from the optic disc. The intraretinal conduction velocity of ganglion cell axons, determined by dividing the axonal length to the optic disc by the ITs, was 0.29 m/s at an eccentricity of 0.5-1.4°and 1.39 m/s at 8-12°.
AB - The multifocal VEPs (mfVEPs) obtained from the right and left eyes are practically identical in shape and amplitude, however small differences in the implicit times (ITs) have been reported. We have analyzed the ITs in detail to show that they are dependent on the radial location of the stimulus in the visual field. The differences are large, up to 8.3 ms, near the horizontal meridian, and are probably due to differences in the distances of the nasal and temporal ganglion cell axons from the optic disc. The intraretinal conduction velocity of ganglion cell axons, determined by dividing the axonal length to the optic disc by the ITs, was 0.29 m/s at an eccentricity of 0.5-1.4°and 1.39 m/s at 8-12°.
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U2 - 10.1016/j.visres.2004.08.016
DO - 10.1016/j.visres.2004.08.016
M3 - Article
C2 - 15607352
AN - SCOPUS:10644262232
SN - 0042-6989
VL - 45
SP - 365
EP - 371
JO - Vision Research
JF - Vision Research
IS - 3
ER -