Luminance Effects on Neural Mechanism at Photopic Level
GE Jing-Jing**, WANG Zhao-Qi
Institute of Modern Optics, Nankai University, Tianjin 300071 The Key Laboratory of Opto-electronic Information Science and Technology, Ministry of Education, Tianjin 300071
Luminance Effects on Neural Mechanism at Photopic Level
GE Jing-Jing**, WANG Zhao-Qi
Institute of Modern Optics, Nankai University, Tianjin 300071 The Key Laboratory of Opto-electronic Information Science and Technology, Ministry of Education, Tianjin 300071
摘要In order to obtain the influence of the luminance at photopic level on the neural mechanism, a neural contrast sensitivity function (NCSF) measurement system is established. The contrast sensitivity function (CSF) of the visual system and the modulation transfer function (MTF) of the eye's optical system are first measured with correspondent instruments respectively. Then the NCSF is calculated as the ratio of CSF to MTF. Four individual eyes are involved in the cases of green light and white light. With increasing luminance, the tendency of the variation of the CSFs is similar to that of the NCSFs, while the gain is larger than that of the NCSFs, especially in the region of higher spatial frequency. It is the NCSF, rather than CSF, that reflects the luminance sensitivity in the retina-brain neural system, because the influence of the eye's optical system is excluded.
Abstract：In order to obtain the influence of the luminance at photopic level on the neural mechanism, a neural contrast sensitivity function (NCSF) measurement system is established. The contrast sensitivity function (CSF) of the visual system and the modulation transfer function (MTF) of the eye's optical system are first measured with correspondent instruments respectively. Then the NCSF is calculated as the ratio of CSF to MTF. Four individual eyes are involved in the cases of green light and white light. With increasing luminance, the tendency of the variation of the CSFs is similar to that of the NCSFs, while the gain is larger than that of the NCSFs, especially in the region of higher spatial frequency. It is the NCSF, rather than CSF, that reflects the luminance sensitivity in the retina-brain neural system, because the influence of the eye's optical system is excluded.
(Physiology of eye; optic-nerve structure and function)
引用本文:
GE Jing-Jing**;WANG Zhao-Qi
. Luminance Effects on Neural Mechanism at Photopic Level[J]. 中国物理快报, 2011, 28(5): 54206-054206.
GE Jing-Jing**, WANG Zhao-Qi
. Luminance Effects on Neural Mechanism at Photopic Level. Chin. Phys. Lett., 2011, 28(5): 54206-054206.
[1] Repka M X et al 2009 Arch Ophthalmol. 9 127
[2] Pepose J S et al 2009 Ophthalmology 7 247
[3] Vannes F L et al 1967 J. Opt. Soc. Am. 57 401
[4] Smith R A 1973 J Physiol 230 115
[5] Banks M S et al 1987 Vision Res. 19 19
[6] Zhao H X et al 2009 Chin. Phys. Lett. 26 054205
[7] Zhao H X et al 2008 Chin. Phys. Lett. 25 1309
[8] Wang W and Wang Z Q et al 2006 Chin. Phys. Lett. 23 607
[9] Dressler M and Rassow B 1981 Invesr. Ophthalmol. 21 737
[10] Williams D R 1985 J. Opt. Soc. Am. A l2 1087
[11] Ge J J, Wang Z Q et al 2010 Chin. Phys. Lett. 27 054201
[12] Liu M, Wang Z Q et al 2008 Optik 37 1612
[13] Yuan X C 1988 (Beijing: Beijing Institute of Technology Press ) p 386 (in Chinese)
[14] Ge J J, Wang Z Q et al 2010 Acta Photon. Sin. 4 39 (in Chinese)
[15] Rushton W A H 1965 Visual Adaptation (London: Proc. Rpy. Soc.) p 40
[16] de Groot S G and Gebhard J W 1952 J. Opt. Soc. Am. 7 42
2011, Vol. 28 
