Left Hem. - Wernicke's Area Flashcards
where?
Left Temporal Lobe, on Superior Temporal Gyrus just caudal to Primary Auditory Cortex
Damage
to this & surrounds (including adjacent Parietal) => Wernike’s Aphasia AKA “Fluent” or “Receptive Aphasia”
- Subjects often seem unaware of deficits, although do detect reaction (confusion, frustration) of others
- Symptoms include Fluent Articulation, Anomia, Nonsensical Speech, and Incomprehension
Wernike’s Aphasia AKA “Fluent” or “Receptive Aphasia”
= Deficits in the comprehension (and production) of meaningful speech
Fluency
Speech is unlabored, prosody maintained, sounds like it should make sense (but doesn’t)
- Still take turns in conversation, recognize questions and readily answer, respond to intonation, etc.
- Speech is grammatical, although sometimes switch agent/object (e.g. “The Astros listened to the radio”)
Anomia:
Mainly for Content Terms (nouns, verbs adjectives etc.) May substitute vague phrases, wrong word
- In some forms, cannot repeat Content Terms, may respond to same word with different words/nonsense
- “Pure Word Deafness”
Pure Word Deafness
Some can read, write words and even read lips, but cannot understand spoken
Nonsensical Speech
Very glib, but use wrong words or nonsense words
Incomprehension
Cannot follow simple directions, cannot pick named object, etc.
- Depending on location of damage, can get specific deficits:
- e.g. Words for animate vs. inanimate objects, parts of the body, spatial relations etc.
Does NOT typically produce…
…deficits in Sign Language Comprehension
-Instead, Parietal Lobe damage implicated in deficits of Sign Language comprehension