behavior/neurological
• onset is by eight to ten weeks of age
(J:205908)
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nervous system
• onset is by eight to ten weeks of age
(J:205908)
|
hearing/vestibular/ear
• ABR assessment of hearing on two homozygotes at approximately three months of age showed normal hearing at all frequencies except for a slightly elevated threshold at 32kHz
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vision/eye
N |
• electroretinography of one homozygote at eleven weeks of age was normal, and ophthalmoscopic examination of three homozygotes at eleven weeks of age found no abnormalities
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