Question

Lesions in different areas of the left hemisphere lead to qualitatively distinct aphasia syndromes. Which of the given statements is/are TRUE?

• A. The brain lesions associated with classical anomia involves the dominant angular gyrus.
• B. Conduction aphasia follows from a lesion in the posterior part of the inferior frontal gyrus.
• C. Wernicke’s aphasia is the consequence of a lesion in the auditory association cortex of the temporal lobe.
• D. Broca’s aphasia follows from localized lesions in the temporoparietal regions.

Hint:

Aphasia types are closely linked to the location of brain lesions. For example, Wernicke's aphasia involves damage to the auditory cortex in the temporal lobe, while Broca’s aphasia is associated with damage to the frontal lobe.

Answer 1

The Correct Option is A, C

Step 1: Analyze the options.
- (A) The brain lesions associated with classical anomia are indeed linked to the angular gyrus, which is involved in language processing, making this statement true.
- (B) Conduction aphasia is generally caused by damage to the arcuate fasciculus, not the posterior part of the inferior frontal gyrus, so this statement is false.
- (C) Wernicke’s aphasia is the result of damage to the auditory association cortex in the left temporal lobe, which is responsible for language comprehension, making this statement true.
- (D) Broca’s aphasia typically results from damage to Broca’s area in the frontal lobe, not from the temporoparietal regions, so this statement is false.

Step 2: Conclusion.
The correct answers are (A) and (C), which are supported by the neuroanatomical understanding of aphasia syndromes.