Brain, Vol. 122, No. 7, 1247-1260,
July 1999
© 1999 Oxford University Press
The perceptual consequences of visual loss: `positive' pathologies of vision
Institute of Psychiatry, London, UK
Correspondence to:
Dr D. H. ffytche, Institute of Psychiatry, De Crespigny Park, Denmark Hill, London SE5 8AF, UK E-mail: d.ffytche{at}iop.kcl.ac.uk
Fifty patients with visual hallucinations and illusions secondary to degenerative eye disease reported remarkably stereotyped experiences. Questionnaire responses revealed five previously recognized categories of pathological vision (perseveration, illusory visual spread, polyopia, prosopometamorphopsia and micro/macropsia) and three novel categories (tessellopsia, hyperchromatopsia and dendropsia). Identical pathologies of vision occur in a range of clinical and experimental settings, suggesting that they reflect fundamental visual processes. The known neurophysiology of the visual cortex helps explain the phenomenology of the experiences and provides the basis for a neurobiologically based classification of positive and negative visual perceptual disorders.
visual hallucinations; palinopsia; metamorphopsia; tessellopsia; hyperchromatopsia; dendropsia
fMRI = functional magnetic resonance imaging
CiteULike 
Connotea 
Del.icio.us What's this?
This article has been cited by other articles:
|
|
 |
|
  G. D. Schott Exploring the visual hallucinations of migraine aura: the tacit contribution of illustration Brain, June 1, 2007; 130(6): 1690 - 1703. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 E. J. Abbott, G. B. Connor, P. H. Artes, and R. V. Abadi Visual Loss and Visual Hallucinations in Patients with Age-Related Macular Degeneration (Charles Bonnet Syndrome) Invest. Ophthalmol. Vis. Sci., March 1, 2007; 48(3): 1416 - 1423. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 C. Summerfield, T. Egner, J. Mangels, and J. Hirsch Mistaking a House for a Face: Neural Correlates of Misperception in Healthy Humans Cereb Cortex, April 1, 2006; 16(4): 500 - 508. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
M. Catani and D. H. ffytche The rises and falls of disconnection syndromes Brain, October 1, 2005; 128(10): 2224 - 2239. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 S A Madill, D H Ffytche, and C. S. Tan Charles Bonnet syndrome in patients with glaucoma and good acuity Br. J. Ophthalmol., June 1, 2005; 89(6): 785 - 786. [Full Text] [PDF]
|
|
|
|
 |
|
 M. Razavi, R.D. Jones, K. Manzel, D. Fattal, and M. Rizzo Steroid-Responsive Charles Bonnet Syndrome in Temporal Arteritis J Neuropsychiatry Clin Neurosci, November 1, 2004; 16(4): 505 - 508. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 D. Lewis-Williams Constructing a Cosmos: Architecture, Power and Domestication at Catalhoyuk Journal of Social Archaeology, February 1, 2004; 4(1): 28 - 59. [Abstract] [PDF]
|
|
|
|
 |
|
 D H ffytche, J M Lappin, and M Philpot Visual command hallucinations in a patient with pure alexia J. Neurol. Neurosurg. Psychiatry, January 1, 2004; 75(1): 80 - 86. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
D H Ffytche Cortical bricks and mortar J. Neurol. Neurosurg. Psychiatry, November 1, 2002; 73(5): 472 - 472. [Full Text]
|
|
|
|
|
|
W Burke The neural basis of Charles Bonnet hallucinations: a hypothesis J. Neurol. Neurosurg. Psychiatry, November 1, 2002; 73(5): 535 - 541. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
A. J. Harding, G. A. Broe, and G. M. Halliday Visual hallucinations in Lewy body disease relate to Lewy bodies in the temporal lobe Brain, February 1, 2002; 125(2): 391 - 403. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
M COLE Charles Bonnet syndrome: an example of cortical dissociation syndrome affecting vision? J. Neurol. Neurosurg. Psychiatry, July 1, 2001; 71(1): 134 - 134. [Full Text]
|
|
|
|
|
|
J Barnes and A S David Visual hallucinations in Parkinson's disease: a review and phenomenological survey J. Neurol. Neurosurg. Psychiatry, June 1, 2001; 70(6): 727 - 733. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
J Calderon, R J Perry, S W Erzinclioglu, G E Berrios, T R Dening, and J R Hodges Perception, attention, and working memory are disproportionately impaired in dementia with Lewy bodies compared with Alzheimer's disease J. Neurol. Neurosurg. Psychiatry, February 1, 2001; 70(2): 157 - 164. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
A. M. Santhouse, R. J. Howard, and D. H. ffytche Visual hallucinatory syndromes and the anatomy of the visual brain Brain, October 1, 2000; 123(10): 2055 - 2064. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 Visual Hallucinations in Eye Disease Mirror Higher Cortical Specialization Journal Watch Neurology, October 1, 1999; 1999(1001): 10 - 10. [Full Text]
|
|