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This is termed poverty of speech [4] or laconic speech. [5] The amount of speech may be normal but conveys little information because it is vague, empty, stereotyped, overconcrete, overabstract, or repetitive. [4] [6] This is termed poverty of content [4] or poverty of content of speech. [6]
A third variant of primary progressive aphasia, LPA was then added, [15] and is an atypical form of Alzheimer's disease. For PNFA, the core criteria for diagnosis include agrammatism and slow and labored speech. Inconsistent speech sound errors are also very common, including distortions, deletions, and insertions.
Researchers have developed an AI tool that can predict with nearly 80% accuracy whether someone is at risk for developing Alzheimer’s disease based on their speech patterns.
It is defined clinically by impairments in naming and sentence repetition. [2] It is similar to conduction aphasia and is associated with atrophy to the left posterior temporal cortex and inferior parietal lobule. It is suspected that an atypical form of Alzheimer's disease is the most common cause of logopenic progressive aphasia. [3] [4]
[2] [3] Palilalic repetitions are often spoken with decreasing volume and speed up over time. [6] A 2007 case study by Van Borsel et al. examined the acoustic features in palilalia. [5] AB, a 60-year-old male was diagnosed with idiopathic Parkinson's disease and had noticed changes in gait, posture, writing, and speech. [5]
[3] [7] Expressive aphasia differs from dysarthria, which is typified by a patient's inability to properly move the muscles of the tongue and mouth to produce speech. Expressive aphasia also differs from apraxia of speech , which is a motor disorder characterized by an inability to create and sequence motor plans for conscious speech.
This is usually characterized by behavior changes, fluent speech but with no meaning, preserved syntax and grammar, and the impaired ability to recognize objects. Logopenic progressive aphasia [23] also known as LPA, is associated with Alzheimer's disease. This is characterized by difficulty in word retrieval and repetition, phonological errors ...
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