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The Benton Visual Retention Test (or simply Benton test or BVRT) is an individually administered test for people aged from eight years to adulthood that measures visual perception and visual memory. It can also be used to help identify possible learning disabilities among other conditions that might affect an individual's memory. The individual ...
To test visual selective attention, a map search task was used, in which participant must identify target symbols from competing distractors. Results suggested that visual selective attention in DLB was more significantly impaired than AD, although AD patients were significantly more impaired than healthy controls. [ 12 ]
The Trail Making Test is a neuropsychological test of visual attention and task switching. It has two parts, in which the subject is instructed to connect a set of 25 dots as quickly as possible while maintaining accuracy. [ 1 ]
It was originally introduced in the screening for dementia, but has also found application in other situations, [3] such as hepatic encephalopathy. [ 4 ] References
The current version of the test is the Addenbrooke's Cognitive Examination-III (ACE-III). This consists of 19 activities which test five cognitive domains: attention, memory, fluency, language and visuospatial processing.
Neuropsychological tests of visuospatial function should cover the areas of visual perception, visual construction and visual integration. [9] Though not their only functions, these tasks are to a large degree carried out by areas of the parietal lobe .
The test may be presented as either a Visual or Auditory test, but both measure the same variables. During the first section of the test, the objective is to measure attention during a boring task. For adults, this section is 10.8 minutes long and the non-target is presented 3.5 times for every 1 time a target is presented.
[7] A recently conducted study in Australia [8] found that the GPCOG in comparison to the MMSE and Rowland Universal Dementia Assessment Scale (RUDAS) [9] was best to rule out dementia in a multicultural cohort of 151 community-dwelling persons. [8] Its sensitivity was higher (98.1) as compared to MMSE and RUDAS (84.3 and 87.7, respectively).
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