Broca’s Aphasia is Characterized by …
Difficulty in production of speech.
Very aware of deficit and get frustrated.
Broca’s area is near the area of…
Motor control of the mouth and lower face.
Frontal Lobe
Wernicke’s Area is in What Lobe?
Temporal
Next to primary auditory cortex
Wernicke’s aphasia is characterized by …
The inability to comprehend speech.
Speech is most often lateralized to what hemisphere of the brain?
Left
Prosody Definition & Hemisphere
Prosody = Rhythm, tone and emphasis in speech.
Most often lateralized to the right hemisphere.
Agraphia
Characterized by inability to write.
Dyslexias
Come in many forms and are characterized by difficulties in reading and writing.
Split Brain Patients
Sever the CC in patients with severe seizure disorder.
Language Hemispheric Specialization Stats
2 Tasks to Determine if Language is Lateralized to the Left Hemisphere
WADA Test
A test for brain lateralization.
Ex. Inject barbituates up left carotid artery (feeds left side of brain) to put that side of the brain to sleep. Then do tests.
Dichotic Listening Test
Brain lateralization test.
If want to find out if someone has language in left hemisphere, introduce language noise into right ear (it will cross) and distracting noises into left ear and see if can identify spoken words.
Side-Note: Hooked Writing
Is language entirely in the left hemisphere?
NO
Language Center of Right Hemisphere
Specialized for prosody.
Information about tone, volume, inflection etc. has as much to do with communication as syntax does.
Fusiform Area
Recognizing/whole word reading
Arcuate Fasciculus
Arc-like bundle of axons that joins Wernicke’s and Broca’s areas.
Conduction Aphasia
Rare and symptoms subtle. Can’t repeat words. E.g., “house” vs “home”.
Can comprehend and produce speech.
Broca & Wernicke’s Areas
(Image)

Chomsky
The Critical Period for Language Acquisition.
Alexia
Reading inability
2 Types of Dyslexias
Surface Dyslexia
Can’t do whole word reading and can’t read non-words. Must sound everything out (it therefore takes longer to read long words over short words)
Deficit most likely in right hemisphere because word recognition most likely there.