False memories in schizophrenia.
In prior studies, it was observed that patients with schizophrenia show abnormally high knowledge corruption (i.e., high-confident errors expressed as a percentage of all high-confident responses were increased for schizophrenic patients relative to controls). The authors examined the conditions under which excessive knowledge corruption occurred using the Deese-Roediger-McDermott paradigm. Whereas knowledge corruption in schizophrenia was significantly greater for false-negative errors relative to controls, no group difference occurred for false-positive errors. The groups showed a comparable high degree of confidence for false-positive recognition of critical lure items. Similar to findings collected in elderly participants, patients, but not controls, showed a strong positive correlation between the number of recognized studied items and false-positive recognition of the critical lure.
Moritz
Steffen
S
Klinik fur Psychiatrie und Psychotherapie, Universitatsklinikum Hamburg-Eppendorf, Hamburg, Germany. moritz@uke.uni-hamburg.de
Woodward
Todd S
TS
Cuttler
Carrie
C
Whitman
Jennifer C
JC
Watson
Jason M
JM
D000293:Adolescent; D000328:Adult; D005260:Female; D006801:Humans; D008297:Male; D008570:Memory, Short-Term; D008875:Middle Aged; D010153:Paired-Associate Learning; D011569:Psychiatric Status Rating Scales; D021641:Recognition, Psychology; D012094:Repression, Psychology; D012559:Schizophrenia / Q000175:diagnosis*; D012565:Schizophrenic Psychology; D012660:Semantics; D013067:Speech Perception; D014706:Verbal Learning