Effects of ageing on postreceptoral short-wavelength gain control: Transient tritanopia increases with age
2010 | journal article. A publication with affiliation to the University of Göttingen.
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Effects of ageing on postreceptoral short-wavelength gain control: Transient tritanopia increases with age
Werner, A.; Bayer, A.; Schwarz, G.; Zrenner, E. & Paulus, W. J. (2010)
Vision Research, 50(17) pp. 1641-1648. DOI: https://doi.org/10.1016/j.visres.2010.05.004
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Details
- Authors
- Werner, A.; Bayer, A.; Schwarz, Guenter; Zrenner, E.; Paulus, Walter J.
- Abstract
- We investigated the effect of ageing on the neural gain control in the short-wavelength opponent channel. In order to tackle specifically postreceptoral changes, we determined the effect of ageing on transient tritanopia, a paradoxical and transient reduction of short-wavelength sensitivity after the presentation of a long-wavelength adapting light. The results demonstrate an unexpected and significant increase of transient tritanopia with age, which cannot be explained by a general decline of short-wave sensitivity or the selective reduction of retinal illumination. Instead, our data imply that ageing affects also short-wavelength gain control at the site of chromatic opponency or beyond. Age-related changes of adaptation processes should therefore be considered an important factor influencing the visual performances of the elderly. (C) 2010 Elsevier Ltd. All rights reserved.
- Issue Date
- 2010
- Status
- published
- Publisher
- Pergamon-elsevier Science Ltd
- Journal
- Vision Research
- ISSN
- 0042-6989
- Sponsor
- BMBFKompetenznetz Parkinson [01G10401]