The Bells Test: A Quantitative and Qualitative Test For Visual Neglect

The Bells Test: A Quantitative and Qualitative Test For Visual Neglect

Volume XI, 2/1989 | LOUISE GAUTHIER, FRANCOIS DEHAUT, YVES JOANETTE
The Bells Test is a cancellation task designed to quantitatively and qualitatively evaluate visual neglect. It involves circling all targets (bells) on a sheet, allowing for rapid visualization and quantification of the spatial distribution of omitted targets. The test also provides qualitative insights into the subject's visual scanning pattern, offering valuable information on how the task is performed. The Bells Test is more dynamic and sensitive compared to other tests like the Albert's Test, making it suitable for detecting mild to moderate visual neglect. The test consists of 35 targets distributed equally across 7 columns, with 5 targets and 40 distractors in each column. The examiner records the total number of circled bells and the realization time, with a maximum score of 35. The test is administered by instructing the subject to circle all bells without losing time, and the examiner notes the order and location of the circled bells. The Bells Test is particularly useful for detecting visual neglect in the left hemi-space, especially in right brain-damaged subjects. Preliminary normative studies with 59 right-handed subjects showed that a total score of less than 32 (more than 3 omissions) indicates an attentional deficit, while six omissions or more in the contralateral half suggests visual neglect. The Bells Test is a valuable tool for assessing visual neglect and monitoring its regression during rehabilitation.The Bells Test is a cancellation task designed to quantitatively and qualitatively evaluate visual neglect. It involves circling all targets (bells) on a sheet, allowing for rapid visualization and quantification of the spatial distribution of omitted targets. The test also provides qualitative insights into the subject's visual scanning pattern, offering valuable information on how the task is performed. The Bells Test is more dynamic and sensitive compared to other tests like the Albert's Test, making it suitable for detecting mild to moderate visual neglect. The test consists of 35 targets distributed equally across 7 columns, with 5 targets and 40 distractors in each column. The examiner records the total number of circled bells and the realization time, with a maximum score of 35. The test is administered by instructing the subject to circle all bells without losing time, and the examiner notes the order and location of the circled bells. The Bells Test is particularly useful for detecting visual neglect in the left hemi-space, especially in right brain-damaged subjects. Preliminary normative studies with 59 right-handed subjects showed that a total score of less than 32 (more than 3 omissions) indicates an attentional deficit, while six omissions or more in the contralateral half suggests visual neglect. The Bells Test is a valuable tool for assessing visual neglect and monitoring its regression during rehabilitation.
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Understanding The Bells Test%3A A quantitative and qualitative test for visual neglect.