Visual scanning training for neglect after stroke with and without a computerized lane tracking dual task

M. E. van Kessel*, A. C. H. Geurts, W. H. Brouwer, L. Fasotti

*Corresponding author for this work

    Research output: Contribution to journalArticleAcademicpeer-review

    23 Citations (Scopus)
    326 Downloads (Pure)

    Abstract

    Neglect patients typically fail to explore the contralesional half-space. During visual scanning training, these patients learn to consciously pay attention to contralesional target stimuli. It has been suggested that combining scanning training with methods addressing non-spatial attention might enhance training results. In the present study, a dual task training component was added to a visual scanning training (i.e., Training di Scanning Visuospaziale - TSVS; Pizzamiglio et al., 1990). Twenty-nine subacute right hemisphere stroke patients were semi-randomly assigned to an experimental (N = 14) or a control group (N = 15). Patients received 30 training sessions during 6 weeks. TSVS consisted of four standardized tasks (digit detection, reading/copying, copying drawings, and figure description). Moreover, a driving simulator task was integrated in the training procedure. Control patients practiced a single lane tracking task for 2 days a week during 6 weeks. The experimental group was administered the same training schedule, but in weeks 4-6 of the training, the TSVS digit detection task was combined with lane tracking on the same projection screen, so as to create a dual task (computerized visual reaction time task designed for training). Various neglect tests and driving simulator tasks were administered before and after training. No significant group and interaction effects were found that might reflect additional positive effects of dual task training. Significant improvements after training were observed in both groups taken together on most assessment tasks. Ameliorations were generally not correlated to post-onset time, but spontaneous recovery, test-retest variability, and learning effects could not be ruled out completely, since these were not controlled for. Future research might focus on increasing the amount of dual task training, the implementation of progressive difficulty levels in driving simulator tasks, and further exploration of relationships between dual task training and daily functioning.

    Original languageEnglish
    Article number358
    Number of pages11
    JournalFrontiers in Human Neuroscience
    Volume7
    DOIs
    Publication statusPublished - 10-Jul-2013

    Keywords

    • hemineglect
    • spatial attention
    • divided attention
    • virtual reality
    • driving simulator
    • UNILATERAL SPATIAL NEGLECT
    • RIGHT-HEMISPHERE STROKE
    • BAKING TRAY TASK
    • BRAIN-DAMAGED PATIENTS
    • VIRTUAL-REALITY
    • COGNITIVE REHABILITATION
    • VISUOSPATIAL NEGLECT
    • HEMISPATIAL NEGLECT
    • EXTRAPERSONAL NEGLECT
    • HEMINEGLECT DISORDER

    Cite this