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Speech delay, also known as alalia, refers to a delay in the development or use of the mechanisms that produce speech. [1] Speech – as distinct from language – is the actual process of making sounds, using such organs and structures as the lungs, vocal cords, mouth, tongue, teeth, etc. Language delay refers to a delay in the development or use of the knowledge of language.
Palilalia is defined as the repetition of the speaker's words or phrases, often for a varying number of repeats. Repeated units are generally whole sections of words and are larger than a syllable, with words being repeated the most often, followed by phrases, and then syllables or sounds.
Echolalia may be an immediate reaction to a stimulus or may be delayed. [1] Echolalia occurs in many cases of autism spectrum disorder and Tourette syndrome. [1] [2] It may also occur in several other neurological conditions such as some forms of dementia or stroke-related aphasia. [1] [3]
Speech delay seems to be more similar to late talker compared to language delay. Speech is the verbal motor production of language, while language is a means of communication. [1] Because language and speech are independent, they may be individually delayed. For example, a child may be delayed in speech (i.e., unable to produce intelligible ...
Specific language impairment (SLI) is diagnosed when a child has delayed or disordered language development for no apparent reason. [3] Usually the first indication of SLI is that the child is later than usual in starting to speak and subsequently is delayed in putting words together to form sentences. Spoken language may be immature.
Feature of speech Absence of feature Difficulty [clarification needed] Problem [clarification needed]; Phonation: Anarthria: Dysarthria, dysglossia: Comprehension: Agnosia, asemia, asymbolia
Tachylalia occurs in many clutterers and many people who have speech disorders. Tachylalia is a generic term for speaking fast, and does not need to coincide with other speech problems. Tachylalia may be exhibited as a single stream of rapid speech without prosody, and can be delivered quietly or mumbled. Tachylalia can be simulated by ...
In general, the voice modulations needed to express strong emotions are particularly difficult for patients with Parkinson's disease. Abnormal pauses in speech are also a characteristic of Parkinsonian dysprosody, including both pauses in general speech and intra-word pauses. A decrease in speech rate can also be observed in Parkinson's ...