Pat spent more and more time at Ramachandran's lab, and later on she collaborated with him on a paper titled "A Critique of Pure Vision," which argued that the function of vision was not to represent the world but to help a creature survive, and that it had evolved, accordingly, as a partial and fractured system that served the more basic needs of the motor system.
This is in synch with the likely function of vision — to inform about distal, stable properties of surfaces.
The window also seems to close early for contrast sensitivity: the ability to discern contrasts, shades, and patterns, one of the most basic functions of vision.
One of the most important functions of vision is that it allows us to act, not only on objects that may be the focus of attention, but also within the environments in which we perceive ourselves.
Visual object tracking is a fundamental function of computer vision that has been the object of numerous studies.
Furthermore, attitudes toward the graduate and medical years can differ greatly at programs, often as a function of the vision of the program director.
In fact, in eyeless jellyfish (Stierwald et al. 2004) Six and Pax perform neurogenic functions independently of vision, similar to what is observed in anthozoans (Matus et al. 2007), nematodes (Chisholm and Horvitz 1995; Zhang and Emmons 1995), or planarians (Pineda et al. 2002).
Some, notably those related to clinically important loss of function (significant loss of vision or marked reduction of creatinine clearance), showed no treatment-related differences.
Stereopsis is one of the functions of binocular vision that can be seriously compromised by applying monovision.
While other insects use polarization sensitivity to identify appropriate habitats [ 6], oviposition sites, and food sources [ 7], to date no nonnavigational functions of polarization vision have been identified in bees.
The stroke-like episodes caused by MELAS may result in loss of brain function, dementia, headaches, loss of vision, loss of muscular function, and seizures; the disease typically begins to present itself in childhood.
