Gerard VA, Cornack CN: Identifying the Cause of an Early Onset of Seizures in Puppies With Epileptic Parents. (italiangreyhound.org)
The incidence of females with onset of seizures between 3 and 4 years of age was very low, with the majority (82 %) of first observed seizures occurring before 3 years of age (hereafter to be referred to as «early» onset seizures versus «late» onset seizures beginning after age 3). (iwfoundation.org)
Typical clinical signs include unprovoked aggression towards other animals and / or people, sudden onset of a seizure disorder in adulthood, disorientation, moodiness, erratic temperament, periods of hyperactivity, hypo - attentiveness, depression, fearfulness and phobias, anxiety, submissiveness, passivity, compulsiveness, and irritability. (siriusdog.com)