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Comparison of Cognitive Response Time according to Ageing and Cognitive Ability
±èÀº¹Ì, ±èÁ¤¿Ï,
¼Ò¼Ó »ó¼¼Á¤º¸
±èÀº¹Ì ( Kim Eun-Mi )
Daegu University Graduate School of Rehabilitation Department of Speech and Language Pathology
±èÁ¤¿Ï ( Kim Jung-Wan )
Daegu University Department of Speech Pathology
Abstract
¸ñÀû : ¹ÝÀÀ½Ã°£Àº ÀÎÁö ´É·Â°ú ³ëÈ¿¡ ´ëÇÑ ¿¬±¸¿¡¼ Áß¿äÇÑ ¿ªÇÒÀ» ÇÑ´Ù. º» ¿¬±¸´Â ÄÄÇ»ÅÍ ÇÁ·Î±×·¥À»ÀÌ¿ëÇÑ ÀÎÁö¹ÝÀÀ½Ã°£(Cognitive response time: CRT) °Ë»ç¸¦ ½Ç½ÃÇÏ¿© Á¤º¸Ã³¸®¿¡ ´ëÇÑ ÀÎÁö ´É·ÂÀÇ¿µÇâÀ» È®ÀÎÇÏ´Â °ÍÀ» ¸ñÀûÀ¸·Î ÇÑ´Ù.
¿¬±¸¹æ¹ý : ´ë±¸ ¹× °æºÏ Áö¿ª¿¡ °ÅÁÖÇÏ°í ÀÖ´Â 65~79¼¼ÀÇ ÀÏ¹Ý ³ëÀÎ(Normal elderly: NE) 30¸í°ú ±â¾ï¼º°æµµÀÎÁöÀå¾Ö(Amnestic mild cognitive impairment: aMCI) ³ëÀÎ 30¸íÀ» ´ë»óÀ¸·Î ÇÏ¿´´Ù. °á°ú ºÐ¼®ÀºÅë°è ºÐ¼® ÇÁ·Î±×·¥ R 4.0.2(University of Auckland, Auckland, New Zealand)¸¦ »ç¿ëÇÏ¿´´Ù.
°á°ú : CRT °Ë»çÀÇ ¼¼ °³ ÇÏÀ§ ¿µ¿ª¿¡¼ÀÇ ÃÑ ¹ÝÀÀ½Ã°£Àº Áý´Ü ¹× ¿¬·É¿¡ µû¶ó À¯ÀÇÇÑ Â÷À̸¦ º¸¿´°í, ¿À·ùÀ²Àº ÀϺΠÇÏÀ§ ¿µ¿ª¿¡¼ ¿¬·É ¶Ç´Â Áý´Ü¿¡ µû¶ó À¯ÀÇÇÑ Â÷À̸¦ º¸¿´´Ù. aMCI Áý´ÜÀÇ CRT °Ë»ç¼öÇà·ÂÀº Àü¹ÝÀûÀÎ ÀÎÁö ¹× ±â¾ï °Ë»çÀÇ ¼öÇà·Â°ú À¯ÀÇÇÑ »ó°ü¼ºÀ» °®´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù.
°á·Ð : ÀÎÁö¹ÝÀÀ½Ã°£À» ÃøÁ¤ÇÏ´Â CRT °Ë»ç¸¦ ÅëÇØ ³ëÈ ¹× ÀÎÁö ´É·Â¿¡ µû¸¥ Á¤º¸Ã³¸®°úÁ¤°ú 󸮼ӵµÀǺ¯º°Àû ¼öÇàÀ» °üÂûÇÒ ¼ö ÀÖ¾ú´Ù. ¶ÇÇÑ, ÀÌ °Ë»çÀÇ ¼öÇà·ÂÀÌ Àü¹ÝÀûÀÎ ÀÎÁö ¹× ±â¾ï °Ë»ç¿Í À¯ÀÇÇÑ»ó°ü¼ºÀ» °®°í ÀÖÀ½À» È®ÀÎÇÏ¿´´Ù. µû¶ó¼ Áö¿ª»çȸ ÀÏ¹Ý ³ëÀÎÀÇ Ãʱâ ÀÎÁöÀå¾Ö¸¦ ¿¹ÃøÇÏ´Â °£Æí µµ±¸·Î½á CRT °Ë»ç°¡ ÀǹÌÀÖ°Ô »ç¿ëµÉ ¼ö Àֱ⸦ ±â´ëÇÑ´Ù.
Objective : Response time plays a prominent part in research on cognitive ability and the aging effect. This study aimed to identify the impact of cognitive ability on information processing by conducting cognitive response time (CRT) using a computer program.
Methods : This study was conducted in 30 normal elderly (NE) and 30 elderly with amnestic MCI (aMCI), aged 65-79 years old living in Daegu and Gyeongbuk. The results were analyzed using the statistical analysis program R 4.0.2 (University of Auckland, New Zealand).
Results : In the three sub-areas of CRT, the total response time showed a significant difference depending on group or age, and the error rate showed a significant difference depending on age or group in some sub-areas. In the aMCI group, the performance of CRT significantly correlated with that of the overall cognition and memory test.
Conclusion : Information processing depending on aging or cognitive ability and the differential performance of processing speed could be observed through CRT. The performance of this test was found to be significantly correlated with that of the overall cognition and memory test.
Therefore, CRT could be used meaningfully as a simplified tool to predict the initial cognitive disorder of the elderly in the community.
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Ageing; Cognitive disorder; Cognitive response time
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