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Computer-based attention-demanding testing unveils severe neglect in apparently intact patients

(2013) BEHAVIOURAL NEUROLOGY. 26(3). p.179-181
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Abstract
We tested a group of ten post-acute right-hemisphere damaged patients. Patients had no neglect according to paper-and-pencil cancellation tasks. They were administered computer-based single- and dual-tasks, requiring to orally name the position of appearance (e.g. left vs. right) of briefly-presented lateralized targets. Patients omitted a consistent number of contralesional targets (approximate to 40%) under the single-task condition. When required to perform a concurrent task which recruited additional attentional resources (dual-tasks), patients' awareness for contralesional hemispace was severely affected, with less than one third of contralesional targets detected (approximate to 70% of omissions). In contrast, performance for ipsilesional (right-sided) targets was close to ceiling, showing that the deficit unveiled by computer-based testing selectively affected the contralesional hemispace. We conclude that computer-based, attention-demanding tasks are strikingly more sensitive than cancellation tasks in detecting neglect, because they are relatively immune to compensatory strategies that are often deployed by post-acute patients.
Keywords
neuropsychological, assessment, right hemisphere damage, cognitive load, attentional resources, dual-task, spatial awareness, Neglect, REACTION-TIME TEST, SPATIAL NEGLECT, STROKE, AWARENESS

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Citation

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MLA
Bonato, Mario et al. “Computer-based Attention-demanding Testing Unveils Severe Neglect in Apparently Intact Patients.” BEHAVIOURAL NEUROLOGY 26.3 (2013): 179–181. Print.
APA
Bonato, M., Priftis, K., Umiltà, C., & Zorzi, M. (2013). Computer-based attention-demanding testing unveils severe neglect in apparently intact patients. BEHAVIOURAL NEUROLOGY, 26(3), 179–181.
Chicago author-date
Bonato, Mario, K Priftis, C Umiltà, and M Zorzi. 2013. “Computer-based Attention-demanding Testing Unveils Severe Neglect in Apparently Intact Patients.” Behavioural Neurology 26 (3): 179–181.
Chicago author-date (all authors)
Bonato, Mario, K Priftis, C Umiltà, and M Zorzi. 2013. “Computer-based Attention-demanding Testing Unveils Severe Neglect in Apparently Intact Patients.” Behavioural Neurology 26 (3): 179–181.
Vancouver
1.
Bonato M, Priftis K, Umiltà C, Zorzi M. Computer-based attention-demanding testing unveils severe neglect in apparently intact patients. BEHAVIOURAL NEUROLOGY. 2013;26(3):179–81.
IEEE
[1]
M. Bonato, K. Priftis, C. Umiltà, and M. Zorzi, “Computer-based attention-demanding testing unveils severe neglect in apparently intact patients,” BEHAVIOURAL NEUROLOGY, vol. 26, no. 3, pp. 179–181, 2013.
@article{4417648,
  abstract     = {We tested a group of ten post-acute right-hemisphere damaged patients. Patients had no neglect according to paper-and-pencil cancellation tasks. They were administered computer-based single- and dual-tasks, requiring to orally name the position of appearance (e.g. left vs. right) of briefly-presented lateralized targets. Patients omitted a consistent number of contralesional targets (approximate to 40%) under the single-task condition. When required to perform a concurrent task which recruited additional attentional resources (dual-tasks), patients' awareness for contralesional hemispace was severely affected, with less than one third of contralesional targets detected (approximate to 70% of omissions). In contrast, performance for ipsilesional (right-sided) targets was close to ceiling, showing that the deficit unveiled by computer-based testing selectively affected the contralesional hemispace. We conclude that computer-based, attention-demanding tasks are strikingly more sensitive than cancellation tasks in detecting neglect, because they are relatively immune to compensatory strategies that are often deployed by post-acute patients.},
  author       = {Bonato, Mario and Priftis, K and Umiltà, C and Zorzi, M},
  issn         = {0953-4180},
  journal      = {BEHAVIOURAL NEUROLOGY},
  keywords     = {neuropsychological,assessment,right hemisphere damage,cognitive load,attentional resources,dual-task,spatial awareness,Neglect,REACTION-TIME TEST,SPATIAL NEGLECT,STROKE,AWARENESS},
  language     = {eng},
  number       = {3},
  pages        = {179--181},
  title        = {Computer-based attention-demanding testing unveils severe neglect in apparently intact patients},
  url          = {http://dx.doi.org/10.3233/BEN-2012-129005},
  volume       = {26},
  year         = {2013},
}

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