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Home > Publication > The effect of limited cognitive resources on communication disturbances in serious mental illness.

The effect of limited cognitive resources on communication disturbances in serious mental illness.

Thanh PL1, Najolia GM1, Minor KS2, Cohen AS3.

Psychiatry Res. 2016 Dec 20;248:98-104. doi: 10.1016/j.psychres.2016.12.025. [Epub ahead of print]

Semantically incoherent speech is a pernicious clinical feature of serious mental illness (SMI). The precise mechanisms underlying this deficit remain unclear. Prior studies have found that arousal of negative emotion exaggerates the severity of these communication disturbances; this has been coined "affective reactivity". Recent research suggests that "cognitive reactivity" may also occur, namely reflecting reduced "on-line" cognitive resources in SMI. We tested the hypothesis that communication disturbances manifest as a function of limited cognitive resources in SMI above and beyond that associated with state affectivity. We also investigated individual differences in symptoms, cognitive ability, and trait affect that may be related to cognitive reactivity. We compared individuals with SMI (n=52) to nonpsychiatric controls (n=27) on a behavioral-based coding of communication disturbances during separate baseline and experimentally-manipulated high cognitive-load dual tasks. Controlling for state affective reactivity, a significant interaction was observed such that communication disturbances decreased in the SMI group under high cognitive-load. Furthermore, a reduction in communication disturbances was related to lower trait and state positive affectivity in the SMI group. Contrary to our expectations, limited cognitive resources temporarily relieved language dysfunction. Implications, particularly with respect to interventions, are discussed.Copyright © 2016 Elsevier Ireland Ltd. All rights reserved.

Chemicals Related in the Paper:

Catalog Number Product Name Structure CAS Number Price
ACM142136398 Fullerene-c76,98% Fullerene-c76,98% 142136-39-8 Price

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Tel:1-201-478-8534
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