Abstraction is impaired at the perceptual level in schizophrenic patients

Neuroscience Letters

Volumn 243, Issue 1-3, 1998, Pages 93-96

  Kéri, Szabolcs ^a,b   Szekeres, György ^a   Kelemen, Ogúz ^c   Antal, Andrea ^b   Szendi, István ^a   Kovács, Zoltán ^a   Benedek, György ^b   Janka, Zoltán ^a  

^a UNIVERSITY OF SZEGED   (Hungary)

^b UNIVERSITY OF SZEGED   (Hungary)

^c Hollós József Hospital   (Hungary)

Author keywords

Abstraction; Attention; Category learning; Perceptual; Schizophrenia

Indexed keywords

ADULT; ARTICLE; ATTENTION DEFICIT DISORDER; CLINICAL ARTICLE; CONTROLLED STUDY; DECISION MAKING; GEOMETRY; HUMAN; LEARNING; NEUROPATHOLOGY; PATHOPHYSIOLOGY; PERCEPTION DISORDER; PRIORITY JOURNAL; SCHIZOPHRENIA;

ADULT; ATTENTION; COGNITION; CONDITIONING (PSYCHOLOGY); FORM PERCEPTION; HUMANS; MIDDLE AGED; SCHIZOPHRENIA;

EID: 18844475377     PISSN: 03043940     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0304-3940(98)00093-7     Document Type: Article

References (20)

1. American Psychiatric Association, DSM-IV: Diagnostic and Statistical Manual of Mental Disorders, 4th edn., American Psychiatric Press, Washington, DC, 1994.
2. Braff D.L., Saccuzzo D.P. The time course of information-processing deficits in schizophrenia. Am. J. Psychiatry. 142:1985;170-174.
3. Braff D.L. Information processing and attention dysfunctions in schizophrenia. Schizophr. Bull. 19:1993;233-259.
4. Chen E.Y.H., Wilkins A.J., McKenna P.J. Semantic memory is both impaired and anomalous in schizophrenia. Psychol. Med. 24:1994;193-202.
5. David A. Dysmodularity: a neurocognitive model for schizophrenia. Schizophr. Bull. 20:1994;249-253.
6. Harnad, S., Categorical Perception: The Groundwork of Cognition, Cambridge University Press, New York, 1987.
7. Kay S.R., Fiszbein A., Opler V.A. The Positive and Negative Symptom Scale (PANSS) for schizophrenia. Schizophr. Bull. 2:1987;261-276.
8. Kéri S., Szekeres G., Kovács G., Szendi I., Kovács Z., Janka Z., Benedek G. Information processing and representation in schizophrenia: a cognitive neuropsychiatric approach. Neurobiology. 5:1997;164.
9. Knowlton B.J., Squire L.R. The learning of natural categories: parallel memory systems for item memory and category-level knowledge. Science. 262:1993;1747-1749.
10. Mandler J.M., Bauer P.J., McDonough L. Separating the sheep from the goats: differentiating global categories. Cognitive Psychol. 23:1991;263-298.
11. McKay A.P., McKenna P.J., Bentham P., Mortimer A.M., Holbrey A., Hodges J.R. Semantic memory is impaired in schizophrenia. Biol. Psychiatry. 39:1996;929-937.
12. Miller M.B., Chapman J.R., Chapman L.J., Collins J. Task difficulty and cognitive deficits in schizophrenia. J. Abnorm. Psychol. 104:1995;251-258.
13. Posner M.L., Keele S.W. On the genesis of abstract ideas. J. Exp. Psychol. 77:1968;353-363.
14. Robbins T.W. The case of frontostriatal dysfunction in schizophrenia. Schizophr. Bull. 16:1990;391-402.
15. Shallice T., Burgess P.W., Frith C.D. Can the neuropsychological case-study approach be applied in schizophrenia? Psychol. Med. 21:1991;661-673.
16. Spitzer M., Braun U., Hemle L., Maier S. Associative semantic network dysfunction in thought disordered schizophrenic patients: direct evidence from indirect semantic priming. Biol. Psychiatry. 34:1993;864-877.
17. Spitzer M. A cognitive neuroscience view of schizophrenic thought disorder. Schizophr. Bull. 23:1997;29-50.
18. Squire L.R., Knowlton B.J. Learning about categories in the absence of memory. Proc. Natl. Acad. Sci. USA. 92:1995;12470-12474.
19. Squire, L.R. and Knowlton, B.J., Memory, hippocampus, and brain systems. In M.S. Gazzaniga (Ed.), The Cognitive Neurosciences, MIT Press, Cambridge, MA, 1996, pp. 825-837.
20. Weinberger D.R. Schizophrenia and the frontal lobe. Trends Neurosci. 11:1988;367-370.