The following information is about Retina.

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Off-site Retina Links, User Submitted

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Thu Sep 4

• RETINA - home
• Home Page of American Society of Retina Specialists

Tue Sep 2

• Retina-clock relations dictate nocturnal to diurnal behaviors ? PNAS: One hypothesis for the evolutionary expansion of mammals after their emergence from reptiles is that mammals became nocturnal and were thus able to use an unexploited temporal niche (1, 2). To produce an exact 24-h rhythm in behavioral outputs, the circadian clock develops a temporal phase relation with the day/night cycle. In species studied thus far, the electrical and gene expression rhythms in the circadian clock in both diurnal and nocturnal animals have similar phases with respect to the light:dark cycle. This suggests that the phase difference in the activity of nocturnal and diurnal animals is not caused by differences in the circadian clock but rather by how the clock couples to output mechanisms (3). In this issue of PNAS, Doyle et al. (4) present a possible mechanism for how retinal mutations could also lead to a switch between nocturnal and diurnal behavior.

Mon Aug 25

• Webvision Home Page

Sun Aug 24

• TEMPORAL FACTORS IN SUBJECTIVE COLOR,: The use of the Prevost-Fechne r-Benham Effect to obtain colored images on black-and-whit e television receivers is discussed to illustrate one technological application of subjective color.
• The Spiral Aftereffect. III. Some Effects of Perceived Size, Retinal Size, and Retinal Speed on the Duration of Illusory Motion,: Many safety problems encountered in aviation have been attributed to visual illusions. One of the various types of visual illusions, that of apparent motion, includes as an aftereffect the apparent reversed motion of an object after it ceases real movement.
• Webvision: Facts and Figures concerning the human retina: 32 mm from ora to ora along the horizontal meridian (Van Buren, 1963; Kolb, unpublished measurements). Area of the human retina is 1094 square mm (Bernstein, personal communication) calculated from the expectations that the average dimension of the human eye is 22 mm from anterior to posterior poles, and that 72% of the inside of the globe is retina (Michels et al., 1990).

Fri Aug 22

• Retinal Detachments

Wed Aug 20

• Spatio-tempora l correlations and visual signalling in a complete neuronal population : Abstract : Nature
• Detached Comic: James Burn suffered from a detached Retina and made a comic book around these circumstances

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Off-site Retina Research Links

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