CONTRAST SENSITIVITY AND ACUITY OF THE GOLDFISH

被引:78
作者
NORTHMORE, DPM
DVORAK, CA
机构
[1] Institute for Neuroscience and Behavior, University of Delaware, Newark
关键词
goldfish; visual acuity; visual contrast sensitivity;
D O I
10.1016/0042-6989(79)90171-8
中图分类号
Q189 [神经科学];
学科分类号
071006 ;
摘要
Photopic contrast thresholds to sinusoidal gratings were measured in five goldfish by conditioning respiration in a Pavlovian paradigm. Vertical gratings were generated on an oscilloscope at a space-averaged luminance of 5 and 23 cd/m2. The CSF (contrast sensitivity as a function of grating spatial frequence) peaked at about 0.3 c/deg, falling off at lower and higher spatial frequencies. CSF's were fitted by double exponential functions that were used to calculate acuity and point-spread functions. Acuity, defined as the half-period of a just resolvable unity contrast grating, ranged in different fish from 13′ to 22′, the smaller value agreeing with the acuity predicted from the intercone separation. The central region of the derived point-spread function subtended about 1.6°, which is smaller than both the smallest ganglion cell receptive field centers, and the limit of full summation previously found for the light-adapted goldfish. © 1979.
引用
收藏
页码:255 / 261
页数:7
相关论文
共 48 条
[41]   SPECTRAL AND SPATIAL CODING OF GANGLION CELL RESPONSES IN GOLDFISH RETINA [J].
SPEKREIJSE, H ;
WAGNER, HG ;
WOLBARSHT, ML .
JOURNAL OF NEUROPHYSIOLOGY, 1972, 35 (01) :73-+
[42]   STRUCTURE AND RELATIONSHIPS OF HORIZONTAL CELLS AND PHOTORECEPTOR-BIPOLAR SYNAPTIC COMPLEXES IN GOLDFISH RETINA [J].
STELL, WK .
AMERICAN JOURNAL OF ANATOMY, 1967, 121 (02) :401-+
[43]   CONE STRUCTURE AND VISUAL PIGMENT CONTENT IN RETINA OF GOLDFISH [J].
STELL, WK ;
HAROSI, FI .
VISION RESEARCH, 1976, 16 (06) :647-657
[44]  
TAMURA TAMOTSU, 1957, BULL JAPANESE SOC SCI FISH, V22, P536
[45]   DIRECTIONALLY SELECTIVE VISUAL UNITS RECORDED IN OPTIC TECTUM OF GOLDFISH [J].
WARTZOK, D ;
MARKS, WB .
JOURNAL OF NEUROPHYSIOLOGY, 1973, 36 (04) :588-604
[46]  
WESTHEIMER G, 1972, HDB SENSORY PHYSL, V7
[47]  
WILKINSON F, 1972, THESIS DALHOUSIE U
[48]  
Yamanouchi T., 1956, Publications of the Seto Marine Biological Laboratory, V5, P133