Practical value of Stroop task of symptomatic words and identity-related words for screening executive dysfunction in schizophrenia / 中华行为医学与脑科学杂志

ABSTRACT

Objective To explore the practical value of Stroop task of symptomatic words and identity-related words for screening executive dysfunction in schizophrenia.Methods Sixty-five patients with schizophrenia in clinical remission and sixty-two healthy controls were recruited in this trial.Patients and controls completed the Stroop task of symptomatic words and identity-related words.Analyze and compare the difference of reaction time between the two groups on the two stroop paradigms and further analyze the degree of discrimination of the two stroop paradigme.Results The reaction time of schizophrenic patients was longer than that of healthy controls in both symptom-word Stroop task ((1 206.65 ± 476.39)ms vs (916.01 ± 395.85) ms,t =6.46,P＜ 0.001),and identity-word Stroop task ((1 256.22 ± 630.18) ms vs (927.85 ± 419.98) ms,t=6.01,P＜0.01).The sensitivity and specificity were obtained by Receiver Operating Characteristic curves in symptom-word Stroop task (89％ and 57％,respectively) and identity-word Stroop task (81％ and 66％,respectively).Conclusion Symptom-word Stroop task and identity-word Stroop task showed moderate diagnostic value for the identification executive dysfunction in patients with schizophrenia.