Table 5.
In depth functional analyses (2): functional characterization of the regions hypo-activated by dyslexics during reading.
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| Brain regions | MNI Coordinates |
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|---|---|---|---|---|---|---|---|---|
| x | y | z | Z score | x | y | z | Z score | |
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| Left occipito-temporal activations | ||||||||
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| Controls | Dyslexics | |||||||
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| a. Pseudo-word reading | ||||||||
| Fusiform gyrus | -42 | -56 | -20 | >8 | ------------------ | |||
| -38 | -48 | -24 | >8 | ------------------ | ||||
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| b. Auditory rhyming | ||||||||
| Inf. temporal gyrus | -52 | -48 | -20 | 4.7 | -50 | -50 | -12 | 5.83 |
| -48 | -44 | -14 | 5.54 | |||||
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| c. Visual motion perception | ||||||||
| Fusiform gyrus | -42 | -64 | -18 | 6.36 | ------------------ | |||
| Inf. occipital gyrus | -50 | -74 | -4 | >8 | -48 | -72 | -4 | >8 |
| ------------------ | -48 | -68 | -2 | >8 | ||||
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CS: contrast sensitivity. SD: Speed discrimination. n.e.: not executed (the subject did not performed the task). n.r.: not recorded (the subject performed the fMRI task, but the behavioral response was not recorded because of a response box malfunction).