Difference between revisions of "Left Fusiform Gyrus (occipital area)"
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The fusiform gyrus has a posterior-anterior gradient for decoding increasingly complex visual orthographic representations (i.e. letter comprehension is posterior to visual word form area). | The fusiform gyrus has a posterior-anterior gradient for decoding increasingly complex visual orthographic representations (i.e. letter comprehension is posterior to visual word form area). | ||
| − | + | • If visual word form area is damaged in mid-fusiform gyrus but posterior regions are spared, patients may suffer letter-by-letter dyslexia in which patients may perceive individual letters but not words (Fiset et al, 2005) | |
| − | If visual word form area is damaged in mid-fusiform gyrus but posterior regions are spared, patients may suffer letter-by-letter dyslexia in which patients may perceive individual letters but not words (Fiset et al, 2005) | ||
Revision as of 16:41, 1 June 2021
Damage to certain areas involved with word and letter representations may cause pure alexia, or pure word blindness – individuals can understand spoken but not written language, otherwise vision is intact
The fusiform gyrus has a posterior-anterior gradient for decoding increasingly complex visual orthographic representations (i.e. letter comprehension is posterior to visual word form area).
• If visual word form area is damaged in mid-fusiform gyrus but posterior regions are spared, patients may suffer letter-by-letter dyslexia in which patients may perceive individual letters but not words (Fiset et al, 2005)
References
Fiset, D., Arguin, M., Bub, D., Humphreys, G. W. & Riddoch, M. J. How to Make the Word-Length Effect Disappear in Letter-by-Letter Dyslexia: Implications for an Account of the Disorder. Psychol. Sci. 16, 535–541 (2005) https://pubmed.ncbi.nlm.nih.gov/16008786/
