Light and Biological Rhythms in Man (Wenner-Gren by L. Wetterberg

By L. Wetterberg

During this quantity, present wisdom on gentle as a regulator of organic rhythms is taken into account from either easy technological know-how and scientific views. Chapters by means of major, specialists conceal the complete diversity of organic rhythms, from infradian and circadian to the longer ultradian rhythms, in a wide selection of mammalian species. The chapters on people offer a foundation on which to set up mechanisms for mediating the healing and physiologically useful results of sunshine as a regulator of rhythms in well-being and sickness.

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A n i m a l studies alone, however, are n o t sufficient a n d m u s t be m a t c h e d by direct h u m a n studies to determine the relative impact of gaze behavior, status of the ocular m e d i a , pupillary response, retinal field a n d p h o t o r e c e p t o r sensitivity o n the biological a n d therapeutic effects of light in h u m a n s . 48 Light and Biological Rhythms in Man Acknowledgments T h e a u t h o r s would like to t h a n k F . L. R u b e r g a n d D . L. B r a i n a r d for their t h o r o u g h editorial assistance a n d m a n u s c r i p t p r e p a r a t i o n , a n d J.

A n d B r a i n a r d G . C . (1993) T h e direct s p e c t r a l t r a n s m i t t a n c e of t h e excised h u m a n lens as a function of a g e . Vision Res. (in press). 7. B a r n e t A . B . , Weiss L P . , O h l r i c h F . S . , S h a n k s B. a n d L o d g e A. (1980) V E P d e v e l o p m e n t in infancy a n d c h i l d h o o d : A l o n g i t u d i n a l s t u d y . Electroenceph. Clin. Neurophysiol. 49, 579-589. 8. Benshoff H . M . , B r a i n a r d G . C , R o l l a g M . D . a n d L y n c h G .

6. T h e b a r s in this g r a p h i n d i c a t e m e a n + S E M H D R S values for p a t i e n t s before t r e a t m e n t ( h a t c h e d b a r s ) a n d after 1 week of t r e a t m e n t w i t h e q u a l p h o t o n 18 densities of different light s p e c t r a ( o p e n b a r s ) . N u m b e r s in p a r e n t h e s e s i n d i c a t e t h e half-peak b a n d w i d t h of t h e light s o u r c e . This study was the first step t o w a r d s defining a n action spectrum of light t h e r a p y for winter depression.

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