Aphasia is the impairment of spoken or written language caused by injury to the brain. It is also commonly referred to as Dysphasia. There are several different categories and many different types of Aphasia. What causes Aphasia?Aphasia is usually the result of a brain tumor, lesion, stroke, or severe blow to the head. Right-handed people can only acquire Aphasia if they have an injury in the left cerebral hemisphere, whereas left-handed people can quire Aphasia from an injury in either the right or left cerebral hemisphere. Therefor, left-handed people are more prone to getting Aphasia. Categories of AphasiaThere are several different systems for categorizing Aphasia. The more common one consists of two broad classifications: Broca's and Wernickes. In Broca's, the patient normally understands speech fairly well, but has difficulty in retrieving words and has hence naming objects or expressing themselves. In Wernickes, the patient normally produces fluent but incomprehensible speech, or jargon, and comprehends poorly the speech of others. The other systems places all types of Aphasia in categories labeled fluent and nonfluent. In fluent, the patient usually has a normal rate of speech without the hesitations or pauses common in nonfluent. Generally, people whose type of Aphasia falls under the fluent category have difficulty comprehending speech. In nonfluent, the patient usually produces effortful, telegraphic style speech marked by pauses. The ability of these patients to understand speech is usually good. Types of AphasiaThere are many different types of Aphasia. Some of them are:Global Aphasia: This is the most severe form of Aphasia. Patients with Global Aphasia produce hardly any recognizable words and understand barely any spoken language. People with Global Aphasia do not have the ability to read or write.Broca's Aphasia: This is a form of Aphasia where the patient has reduced speech outturn, and produces mainly short uttera...
