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Page 148
... rods and cones . The rods are the photoreceptors for vision under conditions of dim illu- mination ; the cones mediate daylight vision and colour sensation in many animals . The photoreceptors in both the rods and cones are composed of ...
... rods and cones . The rods are the photoreceptors for vision under conditions of dim illu- mination ; the cones mediate daylight vision and colour sensation in many animals . The photoreceptors in both the rods and cones are composed of ...
Page 183
... rods and cones to reach their maximum sensitivity in the dark ? Again , why is visual acuity so low under scotopic conditions compared with that in daylight , although sensitivity to light is so high ? Finally , why do the rods not ...
... rods and cones to reach their maximum sensitivity in the dark ? Again , why is visual acuity so low under scotopic conditions compared with that in daylight , although sensitivity to light is so high ? Finally , why do the rods not ...
Page 184
... rods , light falling on the individual rods summates , or accumulates , its effects completely so that 100 quanta falling on a single rod are as effective as one quantum falling simultaneously on 100 rods . The basis for this summation ...
... rods , light falling on the individual rods summates , or accumulates , its effects completely so that 100 quanta falling on a single rod are as effective as one quantum falling simultaneously on 100 rods . The basis for this summation ...
Contents
SÃO PAULO | 3 |
SCANDINAVIAN LITERATURE | 10 |
The History of SCIENCE | 32 |
Copyright | |
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activity animals appears become behaviour body brain called cause cells central centre century changes chemical classical close common completely consists contains continued culture direction dreams early effects example existence experience female fibres field Figure frequency function Greek groups hair head hearing human important increase individual influence inner interest Italy known late later less light literature major male material means mechanical membrane methods middle move movement muscle nature nerve NREM objects observed occurs organs original pattern period person plays position produced receptors relief response result retina sculpture sense sensitivity sensory sexual Shakespeare slavery slaves sleep social society sound species stage stimulation structure style surface taste theory tion types usually vision visual