Sigmund Freud, “On Aphasia: A Critical Study”, 1891 was the topic of an earlier blog post.
Here I present: Sigmund Freud. “On Aphasia”, 1891, PART TWO (II).
Aphasiology is the subject that Sigmund Freud is well known for.
Aphasiology is language impairment caused by brain damage.
I am going to present the most common aphasiology disorders.
1. Broca Expression Aphasia. This is the inability to speak thoughts. The most well localized anatomical area in all neurology is the Broca area (shown ATOP).
2. Wernicke Understanding Aphasia. This is inability to comprehend speech, shown ATOP (well localized anatomically). 
3. Conduction Aphasias. The main impairment is the inability to repeat words. Arcuate fasciculus is often the damaged area of the brain (shown ATOP). 
4. Global Aphasia. Global aphasia refers to a profound impairment of all modalities of receptive and expressive language. 
5. Primary Progressive Aphasia.
Primary progressive aphasia is a rare nervous system syndrome that affects the ability to communicate. People who have it can have trouble expressing their thoughts and understanding or finding words. 
6. Mixed Transcortical Aphasia.
Mixed Transcortical Aphasia is a type of aphasia in which repetition is the primary language ability that is present. It is an uncommon type of aphasia.
7. Transcortical Sensory Aphasia. Transcortical sensory aphasia (TSA) is characterized by impaired auditory comprehension with intact repetition and fluent speech. 
8. Transcortical Motor Aphasia. Transcortical motor aphasia (TMA), is spontaneous verbal output is non-fluent and labored while repetition is relatively preserved.
Here I presented: Sigmund Freud. “On Aphasia”, 1891, PART TWO (II).
SUMMARY.
This blog post used cartoons as illustrations of aphasia disorders.
The speech and thought balloons show different aphasias with the speech and tought differences in diagnosis.
The website is http://www.aphasia.com is the source of cartoon balloons (shown BELOW).
Sigmund Freud, “On Cocaine” 1884 was the topic of an earlier blog post.
