Cortical Magnification Theory Fails to Predict Visual Recognition

European Journal of Neuroscience - Tập 6 Số 10 - Trang 1583-1588 - 1994
Hans Strasburger1, Ingo Rentschler1, Lewis O. Harvey2
1Institute for Medical Psychology, University of Munich, Goethestraβe 31, D-80336 Munich, Germany
2Department of Psychology, University of Colorado at Boulder, Boulder, CO 80309 USA

Tóm tắt

AbstractThe sense of form is poor in indirect view. Yet the cortical magnification theory asserts that the disadvantage can be made up by scaling the image size according to the spatial variation in the mapping of the retina onto the cortex. It is thus assumed that all visual information passes through a functionally homogeneous neural circuitry, with the spatial sampling of input signals varying across the visual field. We challenge this notion by showing that character recognition in the visual field cannot be accommodated by any concept of sole size scaling but requires increasing both size and contrast of the target being viewed. This finding is formalized into a hyperbolic law which states that target size multiplied by log contrast is constant across the visual field. We conclude that the scalar cortical magnification theory fails for character recognition since the latter depends on multidimensional pattern representations in higher, i.e. striate and prestriate, cortical areas.

Từ khóa


Tài liệu tham khảo

Aubert H., 1857, Beiträge zur Kenntniss des indirecten Sehens. (I). Untersuchungen über den Raumsinn der Retina, Arch. Ophthalmol., 3, 1

Baumgartner G., 1990, Where do Visual Signals Become a Perception

10.1038/326873a0

10.1364/JOSAA.9.001233

Bourdon B., 1902, La Perception Visuelle de ľEspace

10.1007/BF00237163

10.1113/jphysiol.1961.sp006803

10.1113/jphysiol.1984.sp015498

10.1038/266554a0

10.1016/0042-6989(89)90113-2

Drasdo N., 1991, Limits of Vision, 250

10.1016/0042-6989(83)90137-2

10.1007/BF00233968

10.1038/360343a0

10.3758/BF03201438

10.1097/00006324-197209000-00007

10.3758/BF03207169

Hering E.(1899)Über die Grenzen der Sehschärfe.Ber. Verhand. Königlich‐Sächsischen Gesell. Wissensch. Leipzig/Math.‐Phys. Classe: Naturwissenschaft. Teil 16–24.

10.1113/jphysiol.1983.sp014619

10.1016/0042-6989(74)90006-6

10.1007/BF00238818

Hübner M., 1985, Hidden‐face recognition: Comparing foveal and extrafoveal performance, Hum. Neurobiol., 4, 1

10.1016/0278-4327(90)90009-7

10.1364/JOSAA.1.000107

10.1364/JOSA.68.000854

10.1364/JOSA.68.000860

10.1038/320360a0

10.1016/0042-6989(85)90207-X

10.1038/315285b0

10.1016/S0002-9394(41)90648-7

10.1016/0893-6080(90)90069-W

Ogle K. N., 1950, Researches in Binocular Vision

10.1016/0166-4328(84)90216-X

10.1016/0042-6989(85)90004-5

10.1016/0306-4522(84)90006-X

10.1111/j.1469-185X.1986.tb00463.x

10.1038/313308a0

10.1007/BF00236819

10.1038/271054a0

10.1068/p160583

10.1016/0042-6989(80)90090-5

10.1068/p130041

10.3758/BF03212183

Tolhurst D. J., 1988, Magnification factors and the organization of the human striate cortex, Hum. Neurobiol., 6, 247

10.1016/0042-6989(84)90041-5

10.1007/BF00236818

10.1016/0042-6989(82)90087-6

10.1364/JOSAA.4.001568

10.1038/341643a0

Watanabe S., 1985, Pattern Recognition: Human and Mechanical

Wertheim T., 1894, Über die indirekte Sehschärfe, Zeitschr. Psychol. Physiol. Sinnesorg., 7, 172

10.1016/0042-6989(82)90177-8

10.1016/0002-9394(58)90042-4

10.1016/0042-6989(91)90204-I

10.1016/0042-6989(90)90120-A

Thông tin
Thông tin xuất bản

European Journal of Neuroscience

Tập 6 Số 10

1583-1588

Thông tin tác giả