Central achromatopsia

The neuropsychologic, neuroanatomic, and neurophysiologic correlates of achromatopsia were studied in two patients. Prosopagnosia accompanied the color perception defect in the bilateral case but not in the unilateral one. No other neuropsychologic disturbance was present in either case. The lesions compromised the ventromedial sector of the occipital lobe in both cases. Cerebral evoked responses produced by pattern shift stimulation were normal for black and white but abnormal for red and green, when stimulation was given in the achromatopsic field.

[1]  A. Damasio,et al.  “Paradoxic” ear extinction in dichotic listening , 1979, Neurology.

[2]  J. C. Meadows,et al.  Cerebral color blindness: An acquired defect in hue discrimination , 1979, Annals of neurology.

[3]  K. D. Hamsher,et al.  Stereopsis and the perception of anomalous contours , 1978, Neuropsychologia.

[4]  A. Benton,et al.  Visuospatial judgment. A clinical test. , 1978, Archives of neurology.

[5]  J. Baizer,et al.  Visual responses of area 18 neurons in awake, behaving monkey. , 1977, Journal of neurophysiology.

[6]  S. Zeki,et al.  Colour coding in the superior temporal sulcus of rhesus monkey visual cortex , 1977, Proceedings of the Royal Society of London. Series B. Biological Sciences.

[7]  S. Lessell,et al.  Acquired cerebral dyschromatopsia. , 1977, Archives of ophthalmology.

[8]  M. Albert,et al.  Hemianopic colour blindness. , 1975, Journal of neurology, neurosurgery, and psychiatry.

[9]  D. Hubel,et al.  Sequence regularity and geometry of orientation columns in the monkey striate cortex , 1974, The Journal of comparative neurology.

[10]  J. C. Meadows.  Disturbed perception of colours associated with localized cerebral lesions. , 1974, Brain : a journal of neurology.

[11]  S. Zeki,et al.  Colour coding in rhesus monkey prestriate cortex. , 1973, Brain research.

[12]  D. Jeffreys,et al.  Cortical Source Locations of Pattern-related Visual Evoked Potentials recorded from the Human Scalp , 1971, Nature.

[13]  A. Benton,et al.  Stereoscopic vision in patients with unilateral cerebral disease , 1970, Neurology.

[14]  A. Benton,et al.  Impairment in facial recognition in patients with cerebral disease. , 1968, Transactions of the American Neurological Association.

[15]  M. Critchley.  Acquired anomalies of colour perception of central origin. , 1965, Brain : a journal of neurology.

[16]  G. Holmes.  DISTURBANCES OF VISION BY CEREBRAL LESIONS , 1918, The British journal of ophthalmology.