Congenital structural brain defects in the deaf dalmatian
Ferrara, M.L.; Halnan, C.R.
Veterinary Record 112(15): 344-346
1983
ISSN/ISBN: 0042-4900 PMID: 6857975 Document Number: 204075
Anatomical examination and measurement of parts of the brain of 7 deaf Dalmatian puppies, 2 normal Dalmatians and 30 puppies of other breeds showed that deafness was associated with morphological abnormalities in the temporal lobes, medial geniculate bodies, acoustic tracts of the tectal surface, caudal colliculi, pons, medulla oblongata and trapezoid bodies, indicative of retarded development of the central nervous system. There was a reduction of about 40% in the area of the acoustic cortex.