मंगलवार, 10 दिसंबर 2013

Cognitive Assessment and Development of Cognitive Assessment test for Older People: A challenge

Cognitive assessment of older people is still a challenge, because of multiple morbidities with advancing age in them.  The older people are compromised with sensory organs, physical activities and fatigability leads to non-response  or discontinuation of the test.   Therefore, before going to assess in detail, older person should screen for cognitive impairment.  Many cognitive screening tests are available but they are having some bias.  MMSE (Mini Mental State Examination) is the most widely used cognitive screening test but it also has education, language and culture bias.  The test is translated, adapted and modified in many languages beside these limitations.  Standardized MMSE, Modified MMSE, HMSE (Hindi Mental State Examination), HCST (Hindi Cognitive Screening Test) are few names of this modified test.  All authors made some modifications as per their sociocultural background to eliminate the education, language and culture bias. 

But, we are yet too far in developing universally used cognitive screening test like Rorschach Psychodiagnostics. Montreal Cognitive Assessment and SLUMS (Saint Luis Mental State Examination) are two cognitive assessment tools which are sensitive and specific for detecting mild cognitive impairment (MCI) also.  Many researchers are trying to adapt, translate and modify these tests as per their social and cultural background.  But developing culture fair norm is still a challenge.

I wish to share an experience in the assessment of immediate memory of a 85 years old inpatient of the Department of Geriatric Mental Health, KGMU, Lucknow, UP, India.  The three items of PGI Memory Scale are arranged in increasing difficulty level.  The first and second sentences were having three and four segments of a sentence however, third sentence has 5 segments.  The patient could not repeat the first two sentences but, he could repeat last sentence which has 5 segments in a sentence.   This was surprising to me. After analysing this response i found that the last sentence was very close to his daily routine work and rest two were not.   So he could easily repeat the last sentence which was much difficult than the rest two.  

Thus, before developing, adapting and modifying of a test for older people we should consider all factors mentioned above.  And Yes!  Older people are treasure of our life so, we should make an extra effort to ease them at the time of assessment in a dignified manner.  Respect them, pat on him/her, motivate and encourage them to be with you in spite of failure in response. Although, it is a still challenge to assess their cognitive functions without bias.
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