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        Impaired context maintenance in mild to moderately depressed students

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        903435.pdf (PDF, 345Kb)
        Author
        Msetfi, R.M.
        Murphy, R.A.
        Kornbrot, D.
        Simpson, J.
        Attention
        2299/6087
        Abstract
        We test the hypothesis that people with depression experience difficulties in maintaining task-relevant context information over longer periods of time using the AX version of the continuous performance task (AX-CPT). The AX-CPT requires that participants maintain a context cue (A) in an active state in order to respond correctly to a target cue (X) presented after a short delay. A total of 40 nondepressed and mild to moderately depressed students completed versions of the task with short (1-s) or long (10-s) interstimulus intervals (ISIs). Mildly depressed participants made significantly more context-dependent (BX) errors, unlike controls who made more errors on trials where good context processing would impair performance (AY). This pattern of errors was only evident in the long ISI condition, suggesting poor maintenance of contextual information.
        Publication date
        2009
        Published in
        Quarterly Journal of Experimental Psychology
        Published version
        https://doi.org/10.1080/17470210802486092
        Other links
        http://hdl.handle.net/2299/6087
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