Altered mental attitude, seizures, blindness, circling, compulsive walking. Forebrain diseases.

Cats with lesions involving either the cerebral cortex or thalamus (forebrain) often have a characteristic group of neurologic deficits. When these deficits, in part or in toto, are recognized, consideration should be given to diseases that preferentially involve this area of the brain. Certain diseases that characteristically affect the forebrain are discussed here. Seizures are discussed as a separate entity at the conclusion of this chapter. Other diseases that also may involve the forebrain, but often cause additional lesions in other areas of the brain, are collectively discussed under the subheading of multifocal neurologic disease in Multiple Neurologic Deficits: Inflammatory Diseases (page 426) and Multiple Neurologic Deficits: Noninfectious Diseases (page 440).