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Disorder of speech and language
Presenter Dr Ramkumar G S
Chair person Dr Sanjeev Jain Psychiatry,NIMHANS.
26.06.2009
Thinking Vs Speaking
Functions of thinking and speaking overlap and
cannot be readily separated from each other;
at the same time they are clearly different.
Thinking <‑‑----> speech
Maher(1972) ' The language is a mirror of thought'
Sapir-Whorf hypothesis- Language influence cognition
Pinker(1994) Thinking occur in the language of thought
Elements of languagePhonemes /k/ sound in the words kit and skill.
Morphemes may be a word such as 'do' or 'un'
Syntax(grammar)
Semantics
Prosody
Pragmatics
Language Vs Speech
Speech is the aspect of language that corresponds to the mechanical and articulatory function that allow language to be vocalised.
Chomsky's theory of language (1986) is the most influential- Language is like an instinct , children must have inate capability to grasp language “universal grammar”
Everyday use of language
Use of words in spoken speech( articulation, fluency, naming, repitition)
Comprehend spoken speech
Read to one self(not aloud)
Ability to write
Comprehend other symbols(musical, mathematical)
Speech Disturbances
Aphonia Organic cause, dissociation
Dysphonia 9th cranial nerve ,vocal cord palsy
Dysarthria brainstem lesions, structural and muscular lesions , idiosyncratic
Speech Disturbances
Stuttering and Stammering
Logoclonia Parkinsonism
Echolalia exicted schizophrenia, mental retardation, organic states- dementia.
Changes in volume and intonation of speech
Speech DisturbancesUnintelligible speech
Dysphasia
Paragrammatism and incoherence of syntax(word salad)
Altered speed of association (mania, depression)
Private symbolism Neologisms, stock words or phrases, cryptolalia or cryptographia
Organic Disorders of Language
Aphasia Loss of language altogether
Dysphasia Impairment of or difficulty with languageSensory(receptive,fluent),motor(expressive,nonfluent) ,
nominal , global
Broca's aphasia, wernicke's aphasia
Psychogenic abnormalities
Mania flight of ideas, pressure of talk
Hysterical mutism
Approximate answers Hehephrenic Schizophrenia, dissociative disorder, ganser syndrome, organic causes.
Paraphasia
Pseudologia fantastica Histronic, Dissocial PD
Mutism
Psychiatric learning disability, organic brain disease(drug related), functional psychosis and neurosis , personality disorders, depression, catatonia, dissociative disorder
Stupor Functional, metabolic causes, akinetic mutism.
Andreasen(1979)
Description of cognitive and linquistic behaviour based on phenomena demonstrated without making inferences for concepts of 'global' thought disorder.
Derailment, loss of goal, poverty of content of speech, tangentiality and illogicality were particularly charecteristic of schizophrenia.
Summary
Speech and language disorders overlap with thought disorder.
Need to distinguish organic causes from psychiatric/psychological causes.
Thank You