Formal thought disorder in schizophrenia: A factor analytic study

Victor Peralta, Manuel J. Cuesta, Jose de Leon

Research output: Contribution to journalArticlepeer-review

54 Scopus citations


The Thought, Language and Communication Scale (TLC) was studied in a sample composed of 115 DSM-III-R schizophrenic patients admitted to an acute inpatient unit. A principal component analysis with varimax rotation was performed to explore the possibility of the existence of syndromes within the formal thought disturbances. Seven factors were found to have eigen values greater than 1 and five showed appropriate internal consistency. The first factor, or disorganization factor, was close to the Scale for the Assessment of Positive Symptoms (SAPS) formal thought disturbance subscale. The second, or negative factor (perseveration, proverty of speech and content), was moderately correlated with poor premorbid functioning and poor response to neuroleptic treatment. The third and fourth factors were, respectively, formed by stilted speech plus word approximations, and neologisms plus clanging. The fifth factor (distractibility and blocking), as well as the first two factors, were correlated to the Scale for the Assessment of Negative Symptoms (SANS) attention subscale.

Original languageEnglish
Pages (from-to)105-110
Number of pages6
JournalComprehensive Psychiatry
Issue number2
StatePublished - 1992

ASJC Scopus subject areas

  • Clinical Psychology
  • Psychiatry and Mental health


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