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  • Title: Deficits of attention after closed-head injury: slowness only?
    Author: Spikman JM, van Zomeren AH, Deelman BG.
    Journal: J Clin Exp Neuropsychol; 1996 Oct; 18(5):755-67. PubMed ID: 8941860.
    Abstract:
    The performance of a group of 60 severely closed-head-injured patients in the subacute stage of recovery on a series of tests addressing focused, divided, and sustained attention, and supervisory attentional control was compared to the performance of a matched group of 60 healthy controls. Patients performed significantly worse on each test with time pressure (those addressing focused and divided attention), indicating basic slowness of information processing, and on the self-paced tasks for supervisory attentional control. No indication was found of a sustained attention deficit. In a subsequent analysis the influence of the demonstrated slowness of information processing and other possibly confounding cognitive factors was controlled for by means of covariance analyses. This resulted in a disappearance of group differences on tests for focused and divided attention. The only difference that remained concerned a test for supervisory attentional control.
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