Nonfluent/agrammatic PPA is typically linked to which brain region?

Prepare for the American Board of Professional Psychology (ABPP) Exam with flashcards and multiple-choice questions. Each question includes insights and explanations to help you excel. Get ready for your certification journey!

Multiple Choice

Nonfluent/agrammatic PPA is typically linked to which brain region?

Nonfluent/agrammatic PPA centers on disruption of speech production in the language-dominant hemisphere, with atrophy hitting the left frontal speech areas. This variant shows effortful, halting speech with apraxia of speech and agrammatism, which directly reflects damage to the left posterior frontal region, including the inferior frontal gyrus and surrounding opercular/insular areas. Those regions handle motor planning for speech and the syntactic aspects of language, so degeneration here produces the characteristic produced language deficits. That’s why the left posterior frontal and insular areas are the best fit. The other patterns align with different profiles: degeneration in the left temporoparietal region is more typical of the logopenic variant, with impaired repetition and phonology; atrophy in the anterior temporal area relates to semantic variant, with loss of word meaning; and the right frontal lobe is not usually the language-dominant area for most individuals, so it doesn’t explain the prodigious production and grammar problems seen in this variant.

Nonfluent/agrammatic PPA centers on disruption of speech production in the language-dominant hemisphere, with atrophy hitting the left frontal speech areas. This variant shows effortful, halting speech with apraxia of speech and agrammatism, which directly reflects damage to the left posterior frontal region, including the inferior frontal gyrus and surrounding opercular/insular areas. Those regions handle motor planning for speech and the syntactic aspects of language, so degeneration here produces the characteristic produced language deficits.

That’s why the left posterior frontal and insular areas are the best fit. The other patterns align with different profiles: degeneration in the left temporoparietal region is more typical of the logopenic variant, with impaired repetition and phonology; atrophy in the anterior temporal area relates to semantic variant, with loss of word meaning; and the right frontal lobe is not usually the language-dominant area for most individuals, so it doesn’t explain the prodigious production and grammar problems seen in this variant.

More practice questions