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Boston Naming Test
The Boston Naming Test (BNT), introduced in 1983 by Drs. Edith Kaplan, Harold Goodglass and Sandra Weintraub, is a widely used neuropsychological assessment tool to measure confrontational word retrieval in individuals with aphasia or other language disturbance caused by stroke, Alzheimer's disease, or other dementing disorder. A common and debilitating feature is Anomic aphasia, an impairment in the ability to name objects. The BNT contains 60 line drawings graded in difficulty.〔 Patients with anomia often have greater difficulties with the naming of not only difficult and low frequency objects but also easy and high frequency objects. Naming difficulties may be rank ordered along a continuum. Items are rank ordered in terms of their ability to be named, which is correlated with their frequency. This type of picture-naming test is also useful in the examination of children with learning disabilities and the evaluation of brain-injured adults.〔
==Instructions for administration==
The 60-item BNT is widely used, while there are shorter versions of the test to suit the needs of the particular assessment. The examiner begins with Item 1 and continues through Item 60, unless the patient is in distress or refuses to continue. The patient is told to tell the examiner the name of each picture and is given about 20 seconds to respond for each trial. The examiner writes down the patient’s responses in detail, using codes. If the patient fails to give the correct response, the examiner at her or his discretion may give the patient a phonemic cue, which is the initial sound of the target word. After the patient completes the test, the examiner scores each item + or – according to the response coding and scoring procedures.〔
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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