Right hemisphere infarct patients and healthy controls: evaluation of starting points in cancellation tasks

Journal of the International Neuropsychological Society : JINS
L NurmiMervi Jehkonen

Abstract

Patients with visual neglect (VN) tend to start cancellation tasks from the right. This exceptional initial rightward bias is also seen in some right hemisphere (RH) stroke patients who do not meet the criteria of VN in conventional tests. The present study compared RH infarct patients' (examined on average 4 days post-stroke) and healthy controls' starting points (SPs) in three cancellation tasks of the Behavioural Inattention Test (BIT). Furthermore, task-specific guideline values were defined for a normal SP to differentiate the performance of healthy subjects from that of patients with subclinical inattention. Conventional tests indicated that 15 of the 70 RH infarct patients had VN. The control group comprised 44 healthy volunteers. In each task, the VN group started the cancellations mainly from the right. The non-neglect and healthy groups initiated most cancellations from the left, more so in the healthy group. Starting more than one BIT task outside the guideline value indicated pathological inattention, as this was typical among the VN patients, but exceptional among the healthy subjects. One-third of the non-neglect patients showed pathological inattention by starting more than one task outside the guideline value. C...Continue Reading

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Citations

Jan 12, 2016·Disability and Rehabilitation·Marianne E KlinkeHelga Jónsdóttir
Mar 7, 2014·Psychological Reports·Yoshimi NakajimaHideyuki Okuzumi
Jan 16, 2016·PloS One·Seok Jong ChungHyo Suk Nam
Jan 16, 2015·The Journal of International Medical Research·Wei FuMaobin Wang
Apr 4, 2018·Journal of the International Neuropsychological Society : JINS·Laura NurmiMervi Jehkonen
Jan 11, 2012·American Journal of Speech-language Pathology·Laura L Murray

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