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Gepubliceerd in: Cognitive Therapy and Research 5/2023

26-05-2023 | Original Article

Investigating False Memory and Illusory Pattern Perception Bias in Schizophrenia Patients with and without Delusions

Auteurs: Metehan Irak, Ayşen Karahan

Gepubliceerd in: Cognitive Therapy and Research | Uitgave 5/2023

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Abstract

Background

Whether the false memory dysfunction in schizophrenia is at the early (encoding, perceptual) or later (retrieval) stages and how delusions affect it remains unclear.

Method

In this study, we examined the perception and memory biases in schizophrenia patients with (Sch/D; n = 31) and without delusions (Sch/Nd; n = 32) and compared them with healthy controls (HCs; n = 35). We used the Deese Roediger McDermott (DRM) Paradigm and the Noise Task to measure the false memory and illusory pattern perception (IPP) biases, respectively.

Results

We found that the patient groups performed lower in both the recall and recognition phases for the DRM and the Noise tasks and made more errors compared to the HC group. Additionally, the performance of the Sch/D group was remarkably lower than the Sch/Nd and HC groups.

Conclusions

Our results indicated that the information-processing problem in schizophrenia exists in both the encoding and retrieval stages. Also found significant relationship between the presence of delusions and the increase in cognitive deficits.
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Metagegevens
Titel
Investigating False Memory and Illusory Pattern Perception Bias in Schizophrenia Patients with and without Delusions
Auteurs
Metehan Irak
Ayşen Karahan
Publicatiedatum
26-05-2023
Uitgeverij
Springer US
Gepubliceerd in
Cognitive Therapy and Research / Uitgave 5/2023
Print ISSN: 0147-5916
Elektronisch ISSN: 1573-2819
DOI
https://doi.org/10.1007/s10608-023-10393-6

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