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The visual acuity of the lynx
L Maffei1, A Fiorentini, S Bisti
1Istituto di Neurofisiologia del CNR and Scuola Normale Superiore, Pisa, Italy.
Vision Research
|January 1, 1990
Summary
The visual acuity of the European Lynx (Lynx europea) was measured using visual evoked potentials, revealing a acuity close to domestic cats but significantly lower than humans.
Area of Science:
- Neuroscience
- Comparative Vision
- Zoology
Background:
- Understanding animal vision is crucial for conservation and welfare.
- The visual capabilities of the European Lynx (Lynx europea) are not well-documented.
- Comparative studies highlight differences in visual acuity across species.
Purpose of the Study:
- To determine the visual acuity of the European Lynx (Lynx europea).
- To compare the visual acuity of Lynx with other species, including domestic cats and humans.
Main Methods:
- Visual evoked potentials (VEPs) were recorded from the occipital scalp of anaesthetized Lynx.
- Stimuli included alternating gratings of varying spatial frequencies and contrasts.
- Data analysis focused on determining the highest spatial frequency perceivable by the Lynx.
Main Results:
- The visual acuity of the European Lynx was determined to be approximately 5-6 cycles per degree (c/deg).
- This level of visual acuity is comparable to that of domestic cats.
- Lynx visual acuity was found to be significantly inferior to that of humans.
Conclusions:
- The European Lynx possesses visual acuity similar to domestic cats.
- Lynx visual acuity is considerably less than human visual acuity.
- These findings contribute to our understanding of feline visual systems and sensory ecology.