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Individual differences |
Methods | Statistics | Clinical | Educational | Industrial | Professional items | World psychology |
Pragmatic language impairment (PLI) is an impairment in understanding pragmatic areas of language. This type of impairment was previously called semantic-pragmatic disorder (SPD). Pragmatic language impairments are related to autism and Asperger syndrome. People with these impairments have special challenges with the semantic aspect of language (the meaning of what is being said) and the pragmatics of language (using language appropriately in social situations).
In 1983, Rapin and Allen suggested the term "semantic pragmatic disorder" to describe the communicative behavior of children who presented traits such as pathological talkativeness, deficient access to vocabulary and discourse comprehension, atypical choice of terms and inappropriate conversational skills. They referred to a group of children who presented with mild autistic features and specific semantic pragmatic language problems. More recently, the term "pragmatic language impairment" (PLI) has been proposed.
Rapin and Allen's definition has been expanded and refined by therapists who include communication disorders that involve difficulty in understanding the meaning of words, grammar, syntax, prosody, eye gaze, body language, gestures, or social context. While autistic children exhibit pragmatic language impairment, this type of communication disorder can also be found in individuals with other types of disorders including auditory processing disorders, neuropathies, encephalopathies and certain genetic disorders.
Individuals with SLD have particular trouble understanding the meaning of what others are saying, and they are challenged in using language appropriately to get their needs met and interact with others. Children with the disorder often exhibit:
- delayed language development
- difficulty understanding questions
- difficulty understanding choices and making decisions
- difficulty following conversations or stories. Conversations are "off topic" or "one sided"
- difficulty extracting the key points from a conversation or story; they tend to get lost in the details
- difficulty with verb tenses
- difficulty explaining or describing an event
- tendency to be concrete or prefer facts to stories
- have difficulty understanding satire or jokes
- have difficulty understanding contextual cues
- difficulty in reading comprehension
- difficulty with reading body language
- difficulty in making and maintaining friendships and relationships because of delayed language development
- difficulty in distinguishing offensive remarks
- difficulty with organizational skills
People with SLD often share additional characteristics consistent with high-functioning autism. For example, they may dislike or avoid eye contact. Many have rigid habits, a shallower range of interests than most people (often with a deep knowledge of their areas of interest), sensory and eating sensitivities, coordination and muscle-tone issues. They may also display striking abilities in an area like mathematics, computer science, geography, astronomy, reading, history, sports, politics or music.
According to Bishop & Norbury (2002), children with semantic-pragmatic disorder have fluent, complex and clearly articulated expressive language but exhibit problems with the way their language is used. These children typically are verbose. However, they usually have problems understanding and producing connected discourse, instead giving conversational responses that are socially inappropriate, tangential and/or stereotyped. They often develop obsessional interests but not as strong or eccentric as people with Asperger's Syndrome or autism.
The current view, therefore, is that the disorder has more to do with communication and information processing than language. For example, children with semantic pragmatic disorder will often fail to grasp the central meaning or saliency of events. This then leads to an excessive preference for routine and 'sameness' (seen in autism and Asperger's Syndrome) as PLI children struggle to generalize and grasp the meaning of situations that are new; it also means that more difficulties occur in a stimulating environment than in a one-to-one setting.
A further problem caused by PLI is the assumption of literal communication. This would mean that obvious, concrete instructions are clearly understood and carried out, whereas simple but non-literal expressions such as jokes, sarcasm and general social chatting are difficult and can lead to misinterpretation. Lies are also a confusing concept to children with PLI as it involves knowing what the speaker is thinking, intending and truly meaning beyond a literal interpretation.
Relationship to autismEdit
There is debate over the relationship between semantic-pragmatic disorder and autistic disorder as the clinical profile of semantic-pragmatic disorder is often seen in children with high-functioning autism.
Hyperlexia is a similar but different disorder where main characteristics are an above–average ability to read with a below–average ability to understand spoken and/or written language.
- High-functioning autism
- PDD not otherwise specified
- Specific language impairment
- Speech and language pathology
- Speech and language pathology in school settings
- ↑ Rapin I, Allen D (1983). Developmental language disorders: Nosologic considerations. In U. Kirk (Ed.), Neuropsychology of language, reading, and spelling (pp. 155–184). : Academic Press.
- ↑ Conti-Ramsden G, Botting N (1999). Classification of children with specific language impairment: longitudinal considerations. J. Speech Lang. Hear. Res. 42 (5): 1195–204.
- ↑ Bishop DVM (2000). Pragmatic language impairment: A correlate of SLI, a distinct subgroup, or part of the autistic continuum? In DVM Bishop & LB Leonard (Eds.), Speech and language impairments in children: Causes, characteristics, intervention and outcome (pp. 99–113). Hove, UK: Psychology Press.
- ↑ Bishop, Dv; Norbury, Cf (Oct 2002). Exploring the borderlands of autistic disorder and specific language impairment: a study using standardised diagnostic instruments. Journal of child psychology and psychiatry, and allied disciplines 43 (7): 917–29.
- http://psyweb.psy.ox.ac.uk/oscci/presentations.htm/pragmatics.htm - Page about research into pragmatic impairments. Part of the Oxford Study of Children's Communication Impairments and including work by Professor Dorothy Bishop.
- I CAN - information on speech, language and communication in children
Pervasive developmental disorders / Autism spectrum
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