Dual-modality impairment of implicit learning of letter-strings versus color-patterns in patients with schizophrenia.

ABSTRACT:

Background

Implicit learning was reported to be intact in schizophrenia using artificial grammar learning. However, emerging evidence indicates that artificial grammar learning is not a unitary process. The authors used dual coding stimuli and schizophrenia clinical symptom dimensions to re-evaluate the effect of schizophrenia on various components of artificial grammar learning.

Methods

Letter string and color pattern artificial grammar learning performances were compared between 63 schizophrenic patients and 27 comparison subjects. Four symptom dimensions derived from a Chinese Positive and Negative Symptom Scale ratings were correlated with patients' artificial grammar implicit learning performances along the two stimulus dimensions. Patients' explicit memory performances

SUBMITTER: Chiu MJ 

PROVIDER: S-EPMC1334227 | biostudies-literature | 2005 Dec

REPOSITORIES: biostudies-literature