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

Kristopher I. Mathis, Jonathan K. Wynn, Bruno Breitmeyer, Keith H. Nuechterlein, Michael F. Green

Research output: Contribution to journalArticlepeer-review

20 Scopus citations

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 reduction in accuracy was steeper and more pronounced in the patients during the AB lags, and it extended to lags before and after the typical AB. This performance pattern on the AB task suggests that patients with schizophrenia exhibit both deficits in visual processing at the interface of perceptual and attentional processing and a general attentional deficit.

Original languageEnglish
Pages (from-to)1346-1351
Number of pages6
JournalJournal of Psychiatric Research
Volume45
Issue number10
DOIs
StatePublished - Oct 2011
Externally publishedYes

Bibliographical note

Funding Information:
Funding for this study was provided by NIH Grants MH043292 and MH065707 (MFG); the NIH had no further role in study design; in the collection, analysis, and interpretation of data; in the writing of the report; and in the decision to submit the paper for publication.

Keywords

  • Attention
  • Attentional blink
  • Perceptual impairment
  • Schizophrenia

Fingerprint

Dive into the research topics of 'The attentional blink in schizophrenia: Isolating the perception/attention interface'. Together they form a unique fingerprint.

Cite this