ABSTRACT
Early clinical reports on patients showing selective visual loss following posterior brain injury have suggested that visual functions are cortically distributed, a concept that many years later has been verified on the basis of combined anatomical, electrophysiological, and behavioural evidence. The neuropsychology of vision is still a major topic in neuroscience, and the questions of how the different lower and higher level “processing units” integrate pieces of information, how they co-operate by various interactions to achieve and maintain coherence of visual perception in time and space, and how they are influenced by attention and intention etc., are exciting and very promising research topics for the next few years. A “sufficiently long period of training” was, however, required before the monkey was able, for example, to locate objects in space. Eye movements can therefore be used to objectively assess practice effects.
