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Sustaining attention to simple visual tasks: a central deficit in schizophrenia? A systematic review
Marc Hoonakker1, Nadège Doignon-Camus2, Anne Bonnefond1
1INSERM U1114, Department of Psychiatry, University Hospital of Strasbourg, Strasbourg, France.
Annals of the New York Academy of Sciences
|November 2, 2017
Summary
Sustained attention deficits are a hallmark of schizophrenia, but findings are inconsistent. Different assessment methods yield opposite results, highlighting the need for further research into cognitive control mechanisms.
Area of Science:
- Neuroscience
- Psychiatry
- Cognitive Psychology
Background:
- Sustained attention impairments are considered central to schizophrenia.
- Sustained attention deficit is a recognized hallmark of schizophrenia.
- Existing research findings on sustained attention deficits in schizophrenia are inconsistent.
Purpose of the Study:
- To clarify inconsistent findings on sustained attention deficits in schizophrenia.
- To analyze results based on assessment type, participant characteristics, and task paradigms.
- To investigate the impact of different evaluation methods on observed attention deficits.
Main Methods:
- Review and analysis of existing studies on sustained attention in schizophrenia.
- Categorization of studies by assessment type (overall vs. over time).
- Examination of participant characteristics and task paradigms used in the studies.
Main Results:
- Two distinct assessment types yield contradictory findings.
- Overall assessments of sustained attention tend to show deficits.
- Over time assessments do not consistently reveal sustained attention deficits.
Conclusions:
- The method of assessing sustained attention significantly influences research outcomes in schizophrenia.
- Further investigation into cognitive control mechanisms is required to understand temporal changes in sustained attention.
- Clarifying assessment methodologies is crucial for advancing our understanding of schizophrenia.
