Dynamic Attention Regulation for Prospective Goals in Schizophrenia

Author:

Chen Tao1234,Liu Lu-lu134,Cui Ji-fang5,Qin Xiao-jing12,Gan Ming-yuan6,Tan Shu-ping6,Wang Ya12ORCID,Irish Muireann34

Affiliation:

1. Neuropsychology and Applied Cognitive Neuroscience Laboratory, CAS Key Laboratory of Mental Health, Institute of Psychology, Beijing, China

2. Department of Psychology, University of Chinese Academy of Sciences

3. Brain and Mind Centre, The University of Sydney

4. School of Psychology, The University of Sydney

5. Institute of Educational Information and Statistics, National Institute of Education Sciences, Beijing, China

6. Beijing Huilongguan Hospital, Beijing, China

Abstract

Whether patients with schizophrenia are impaired in flexibly regulating attention in accordance with fluctuations in cognitive demand to achieve optimal task performance remains unclear. To address this issue, 47 patients with schizophrenia and 47 matched control participants were recruited to complete a time-based prospective memory task. Every 2-min block before the target time was divided into four 30-s intervals, after which the time check and intraindividual response time variability (IIRTV) across these intervals were calculated. Patients with schizophrenia displayed significantly higher IIRTV across all four time intervals and checked time less frequently during the last 30-s interval relative to control subjects. Moreover, the reduced change in time-checking frequency and IIRTV between the first and the last 30-s intervals was related to poorer time-based prospective memory performance in patients with schizophrenia. Our findings provide initial evidence that an inefficient capacity to dynamically allocate attentional resources during an ongoing task hinders dual-task performance in schizophrenia.

Funder

National Natural Science Foundation of China

australian research council

Publisher

SAGE Publications

Subject

Clinical Psychology

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