http://cogprints.org/1757/
Vision in a monkey without striate cortex: a case study
A rhesus monkey, Helen, from whom the striate cortex was almost totally removed, was studied intensively over a period of 8 years. During this time she regained an effective, though limited, degree of visually guided behaviour. The evidence suggests that while Helen suffered a permanent loss of 'focal vision' she retained (initially unexpressed) the capacity for 'ambient vision'.
Humphrey, Nicholas K
Behavioral Neuroscience
Neuropsychology
Perceptual Cognitive Psychology
Nicholas K
Humphrey