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1 de ene. de 2010 · PDF | Vision is essential for birds, but the metabolic demands of retinal processing, and also the costs of carrying large eyes, are likely to impose... | Find, read and cite all the...
486 optical structure of birds' eyes and, (ii) their associated visual fields. Eye structure and visual fields are particularly suitable for study in avian sensory ecology because of the widely acknowledged importance of vision in the control of avian behaviour which is readily observed.
Figure 1.2 illustrates two extremes of eye size and shape found in birds. In owls (Strigiformes) eyes are tubular and absolutely large. An owl eye is so large relative to the skull that much of it extends outside its orbit. Such an arrange ment prohibits eye movements of any significance (Steinbach and Money 1973) since the usual three pairs ...
1 de ene. de 2022 · Vision in some modern birds is arguably at the pinnacle of eye performance. In some bird species, spatial resolution is close to the very limits of what is theoretically possible for a vertebrate eye, dictated by the physical properties of light ( Land and Nilsson, 2012 ).
that the primary pathways mediating vision are different for birds and mam-mals. Birds rely on the collothalamic pathway, while mammals rely on the lemnothalamic pathway. This divergence in their neural organizations has significant implications for developing any general theory of vision and visual cognition.
1 de ene. de 2022 · Abstract. Birds have acute vision and many remarkable visual cognition abilities, due to their unique living environment. The underlying neural mechanisms have also attracted interests of researchers in neuroscience. Here, we firstly summarize the visual cognition abilities of birds, and make a comparison with mammals.
Form and Function in the Optical Structure of Bird Eyes. Chapter. pp 5–34. Cite this chapter. Download book PDF. G. R. Martin. 386 Accesses. 17 Citations. Abstract. The anatomy of bird eyes has often been described in near eulogistic terms.
