The attentional blink in schizophrenia: isolating the perception/attention interface

Journal of Psychiatric Research
Kristopher I MathisMichael F Green

Abstract

Previous work has demonstrated that several aspects of visual processing are impaired in schizophrenia, including early perceptual processes and later higher-order processes. However, it remains unclear whether the stage of processing where early perception and later higher-order processes interact is impaired in schizophrenia. The current research examined this interface in schizophrenia using the attentional blink (AB) paradigm. We administered two rapid serial visual processing (RSVP) tasks to 143 patients with schizophrenia or schizoaffective disorder and 80 healthy controls: 1) a single target detection task, to measure basic visual perception; and 2) a dual target detection task, to measure the AB effect. In the dual target task, the two target stimuli (T1 and T2) were presented at varying positions or "lags" within a rapid sequential stream of distractor stimuli. Participants verbally identified the target stimuli. Both groups showed the expected AB effect, with T2 accuracy being poorest 200-500 ms after presentation of T1. However, patients showed an exaggerated AB effect compared to the healthy controls, with significantly reduced detection of T2, even after correcting for performance on the single target task. The red...Continue Reading

References

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Citations

Feb 21, 2013·Journal of Abnormal Psychology·Gregory P StraussJames M Gold
Jul 10, 2012·International Journal of Psychophysiology : Official Journal of the International Organization of Psychophysiology·Kristopher I MathisMichael F Green
Jan 30, 2013·Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology·Rolf VerlegerRebekka Lencer
Jun 10, 2014·Schizophrenia Research·Julie Walsh-MessingerDolores Malaspina
Jan 18, 2014·Journal of Psychiatric Research·Carol JahshanMichael F Green
Jul 6, 2016·Frontiers in Human Neuroscience·Anne GierschPhilippe Isope
Aug 9, 2020·Frontiers in Psychology·Fengzhan LiXia Zhu

Related Concepts

Mental Concentration
Memory for Designs Test
Schizophreniform Disorders
Reaction Time
Schizophrenia
Schizophrenic Psychology
Attentional Blink
Attention
Perception
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