Thought, language, and communication in schizophrenia: diagnosis and prognosis.

@article{Andreasen1986ThoughtLA,
  title={Thought, language, and communication in schizophrenia: diagnosis and prognosis.},
  author={N. Andreasen and W. Grove},
  journal={Schizophrenia bulletin},
  year={1986},
  volume={12 3},
  pages={
          348-59
        }
}
Using the Scale for the Assessment of Thought, Language, and Communication (TLC), we examined the frequency of "thought disorder" in 94 normal volunteers and 100 psychiatric patients (25 each suffering from manic disorder, schizoaffective disorder, schizophrenic disorder, disorganized type, and schizophrenic disorder, paranoid type). We observed the manics to have a substantial amount of thought disorder and the normals to have a modest amount, suggesting that thought disorder is probably not… Expand
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References

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Thought, language, and communication disorders. II. Diagnostic significance.
  • N. Andreasen
  • Psychology, Medicine
  • Archives of general psychiatry
  • 1979
TLDR
This investigation demonstrates that associative loosening can no longer be considered pathognomonic of schizophrenia and it is recommended that the practice of referring globally to "thought disorder," as if it were homogeneous, be avoided in the future. Expand
The Consistency of Thought Disorder in Mania and Schizophrenia: An Assessment of Acute Psychotics
TLDR
It was found that clinically rated speech disorders were relatively consistent within these patients at the outset of a psychotic episode and composite ratings of positive and negative speech disorders, as defined by the TLC were stable discriminators of the manic and schizophrenic patients. Expand
Thought, language, and communication disorders. I. Clinical assessment, definition of terms, and evaluation of their reliability.
  • N. Andreasen
  • Psychology, Medicine
  • Archives of general psychiatry
  • 1979
TLDR
A set of definitions of linguistic and cognitive behaviors frequently observed in patients are presented, which attempt to define the broad range of language, thought, and communication behaviors observed in Patients and are not limited to those considered characteristic of schizophrenia. Expand
Formal thought disorder in schizophrenics and their twins.
TLDR
A factor analysis of the thought disorder scales revealed two interpretable factors reflecting verbosity and discontinuities in the form of speech, which showed signs of familial influence and were significantly correlated with severity of psychiatric history. Expand
Measuring thought disorder with clinical rating scales in schizophrenic and nonschizophrenic patients
TLDR
The results indicate that both aspects of disordered thinking are present in schizophrenic and manic patients; neither is specifically characteristic of schizophrenia. Expand
Reliability of Andreasen's thought, language and communications disorder scale.
TLDR
This study supports Andreasen's contention that the TLC is a reliable instrument and suggests that the instrument may provide additional information about thinking disorders. Expand
The significance of thought disorder in diagnostic evaluations.
TLDR
Examination of proverb interpretations and samples of writing from two schizophrenics, two manics, and two creative writers suggests that current thinking about the nature and significance of thought disorder should be reexamined and reevaluated. Expand
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Schizophrenic responses to the Proverbs Test: abstract, concrete, or autistic?
TLDR
Investigators found that intelligence, rather than degree of illness, was the primary correlate of both abstractness and concreteness in proverb responses, and suggested an abandonment of the abstract-concrete dichotomy with respect to proverb interpretation. Expand
Scale for the assessment of thought, language, and communication (TLC).
TLDR
The following set of definitions was developed to improve the reliability of assessments of "formal thought disorder" and provide a common and reliable stock of terms to describe the language and cognitive behaviors which can be observed in psychiatric patients. Expand
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