»ýü½ÅÈ£ ±â¹Ý Àΰ£-ÄÄÇ»ÅÍ ÀÎÅÍÆäÀ̽º º» ¿¬±¸½Ç¿¡¼´Â ¿¬±¸½ÇÀÇ ÁÖ¿ä ¿¬±¸ ÁÖÁ¦ÀÎ ³ú-ÄÄÇ»ÅÍ ÀÎÅÍÆäÀ̽º(BCI) »Ó¸¸ ¾Æ´Ï¶ó ³úÆÄ ÀÌ¿ÜÀÇ ´Ù¾çÇÑ »ýü½ÅÈ£µéÀ» ÀÌ¿ëÇÏ¿© Àΰ£°ú ÄÄÇ»ÅÍ(¶Ç´Â ±â°è)°¡ ¼ÒÅëÇÒ ¼ö ÀÖ´Â »õ·Î¿î ÀÎÅÍÆäÀ̽º(Neo-Interface) ½Ã½ºÅÛµéÀ» °³¹ßÇϰí ÀÖ´Ù. ÀÌ ±â¼úµéÀº Àå¾ÖÀÎÀÇ ÀÇ»ç¼ÒÅëÀ» º¸Á¶ÇÏ´Â º¸Á¶±â¼ú(assistive technology)·Î Ȱ¿ëµÉ ¼ö ÀÖÀ» »Ó¸¸ ¾Æ´Ï¶ó °¡»óÇö½Ç(VR), Áõ°Çö½Ç(AR) ½Ã´ë¿¡ »õ·Î¿î ÀÔ·Â µð¹ÙÀ̽º·Î¼ Ȱ¿ëµÉ °¡´É¼ºÀ» º¸¿©ÁÖ°í ÀÖ´Ù. ÇÑ Æí, º» ¿¬±¸½Ç¿¡¼´Â »ýü½ÅÈ£¸¦ ÀÌ¿ëÇÑ Àΰ£-ÄÄÇ»ÅÍ ÀÎÅÍ·º¼ÇÀÇ ÀÀ¿ë ºÐ¾ß·Î¼ ´º·Î¸¶ÄÉÆÃ(Neuromarketing) ºÐ¾ßµµ ¿¬±¸Çϰí Àִµ¥, ÁÖ·Î ±â¾÷µé°úÀÇ Çù¾÷À» ÅëÇØ ³úÆÄ¸¦ ºñ·ÔÇÑ ´Ù¾çÇÑ »ýü½ÅÈ£°¡ Á¦Ç°ÀÇ µðÀÚÀÎ, »óǰÀ̳ª ±â¾÷ÀÇ ·Î°í µðÀÚÀÎ µî¿¡ ½ÇÁúÀûÀ¸·Î Ȱ¿ëµÉ ¼ö ÀÖµµ·Ï ´Ù¾çÇÑ ±â¼úÀ» ¿¬±¸ °³¹ßÇϰí ÀÖ´Ù. ¾Æ·¡¿¡ º» ¿¬±¸½ÇÀÇ ¿¬±¸ °á°úµéÀ» ÀϺΠ³ª¿ÇÏ¿´´Ù.
¾È±¸Àüµµ(EOG)¸¦ ÀÌ¿ëÇÑ ¾È±¸ ¸¶¿ì½º ¹× ¹®ÀÚ ÀÎ½Ä ½Ã½ºÅÛ ¾È±¸ÀÇ Àü¸éÀº ¾çÀÇ Æ÷ÅÙ¼ÈÀ», ÈĸéÀº À½ÀÇ Æ÷ÅÙ¼ÈÀ» °¡Áö°í ÀÖ¾î¼ ´«µ¿ÀÚ°¡ ¿òÁ÷ÀÌ¸é ´« ÁÖº¯ºÎÀ§¿¡ ºÎÂøµÈ Àü±Ø¿¡ ÀüÀ§ º¯È°¡ ÃøÁ¤µÈ´Ù. ÀÌ·¯ÇÑ ¿ø¸®¸¦ ÀÌ¿ëÇØ¼ ÇѾç´ë °è»ê½Å°æ°øÇבּ¸½Ç¿¡¼´Â Ä«¸Þ¶ó¸¦ »ç¿ëÇÏÁö ¾Ê°íµµ ´«µ¿ÀÚÀÇ ¿òÁ÷ÀÓÀ» ÃßÀûÇÒ ¼ö ÀÖ´Â ¾È±¸¸¶¿ì½º¸¦ ÃÖÃÊ·Î °³¹ßÇÏ¿´´Ù. ±âÁ¸ÀÇ ¾È±¸¸¶¿ì½º´Â À§-¾Æ·¡-ÁÂ-¿ì Á¤µµÀÇ ÀÌ»ê(discrete) Á¤º¸¸¸À» ÃßÃâÇϴµ¥ ±×ÃÆÀ¸³ª, »õ·Ó°Ô °³¹ßÇÑ ¾È±¸¸¶¿ì½º´Â ¿¬¼ÓÀûÀÎ ´«µ¿ÀÚÀÇ ¿òÁ÷ÀÓÀ» ÃßÀûÇϰí, ´«µ¿ÀÚ ¿òÁ÷ÀÓÀ¸·Î ¹®ÀÚ¸¦ ¾²µµ·Ï ÇÏ¿©, »ç¿ëÀÚ°¡ ¾î¶² ¹®ÀÚ¸¦ ´«À¸·Î ½è´ÂÁö¸¦ ÀνÄÇÏ´Â »õ·Î¿î ¹æ½ÄÀ» °í¾ÈÇÏ¿´´Ù (Lee et al., IEEE TNSRE, 2017). º» ¿¬±¸½Ç¿¡¼´Â ¾È±¸¸¶¿ì½º °³¹ß °úÁ¤¿¡ °¡·Î¹æÇâ ¹× ¼¼·Î¹æÇ⠾ȱ¸Àüµµ ¼ººÐ »çÀÌÀÇ °£¼·À» Á¦°ÅÇϱâ À§ÇÑ »õ·Î¿î ¹æ¹ýÀ» Á¦¾È(Chang et al., Sensors, 2016)ÇÏ°í ´«±ôºýÀÓÀ» ÀÚµ¿À¸·Î ÀνÄÇÏ´Â »õ·Î¿î ¹æ¹ýÀ» °³¹ß(Chang et al., Physiol. Meas., 2016)ÇÏ´Â µî ¿©·¯ °¡Áö »õ·Î¿î ¹æ¹ýµéÀ» °³¹ßÇÏ¿© ¹Ý¿µÇÏ¿´´Ù. °³¹ßµÈ ¾È±¸¸¶¿ì½º´Â ÇöÀç »çÁö¸¶ºñ Àå¾ÖÀÎÀ» ´ë»óÀ¸·Î Àû¿ëÇÏ¿© ¿ì¼öÇÑ °á°ú¸¦ µµÃâÇÏ¿´À¸¸ç VR, AR ½Ã½ºÅÛ°úÀÇ Á¢¸ñÀ» À§ÇÑ ±âÃÊ ¿¬±¸¸¦ ÁøÇàÇϰí ÀÖ´Ù. <¿ÞÂÊ ±×¸²: ´«À¸·Î ¾´ ±Û¾¾¸¦ ¾È±¸Àüµµ·ÎºÎÅÍ º¹¿øÇÑ °á°ú, ¿À¸¥ÂÊ ±×¸²: ´« ±Û¾¾ ½Ç½Ã°£ ÀÎ½Ä ÇÁ·Î±×·¥ ½ÇÇà ¸ð½À (Lee et al., 2016)> ¿À¸¥ÂÊ ±×¸²À» Ŭ¸¯ÇÏ½Ã¸é ½Ã¿¬ µ¿¿µ»óÀ» º¼ ¼ö ÀÖ½À´Ï´Ù (wmv file).
¾È±¸Àüµµ(EOG) ½ÅÈ£¸¦ ÀÌ¿ëÇÑ »çÁö¸¶ºñ Àå¾ÖÀÎÀÇ ÀÇ»çÀü´Þ ½Ã½ºÅÛ º» ¿¬±¸½ÇÀº ¾È±¸Àüµµ ½ÅÈ£ ºÐ¼® ¿øÃµ ±â¼úÀ» ¹ÙÅÁÀ¸·Î ÇÏ¿© »çÁö¸¶ºñ Àå¾ÖÀÎÀÇ ÀÇ»çÀü´ÞÀ» À§ÇÑ »õ·Î¿î ½Ã½ºÅÛÀ» ´Ù¼ö °³¹ßÇÏ¿© ±¹Á¦ Àú¸í ÇмúÁö¿¡ ´Ù¼ö ³í¹®À» °ÔÀçÇÏ¿´´Ù. ¿ì¼± ¾È±¸ ¸¶¿ì½º ±â¼úÀ» ¹ÙÅÁÀ¸·Î ÇÑ ´«À¸·Î ±×¸° ÆÐÅÏ ÀÎ½Ä ±â¼úÀ» ÀÌ¿ëÇÏ¿© ¾È±¸ ¿îµ¿ ±â´ÉÀÌ ÀϺΠ¼Ò½ÇµÈ ·ç°Ô¸¯º´¿¡ °É¸° ȯÀÚ°¡ 90% ÀÌ»óÀÇ Á¤È®µµ·Î 10°¡Áö Àǻ縦 Ç¥ÇöÇÏ´Â ½Ã½ºÅÛÀ» ±¸ÇöÇÏ´Â µ¥ ¼º°øÇÏ¿´´Ù(Chang et al., J. Neuroeng. Rehabil., 2017). ¾Æ·¡ ¿ÞÂÊ ±×¸²Àº ÀÌ ¿¬±¸¿¡¼ »õ·Ó°Ô °³¹ßÇÑ ´« ±Û ÆÐÅÏ º¸Á¤ ¾Ë°í¸®ÁòÀ» º¸¿©ÁÖ°í ÀÖ´Ù. ¶ÇÇÑ º» ¿¬±¸½Ç¿¡¼´Â ¼·Î ´Ù¸¥ ¹æÇâÀ¸·Î ȸÀüÇÏ´Â µÎ °³ÀÇ ¼Ò¸® ÀÚ±Ø Áß¿¡¼ ƯÁ¤ ¼Ò¸® Àڱؿ¡ ÁýÁßÇÒ °æ¿ì ƯÁ¤ÇÑ À§»óÀ» °¡Áö´Â ¾È±¸Àüµµ ½ÅÈ£°¡ ÃøÁ¤µÈ´Ù´Â Á¡¿¡ Âø¾ÈÇÏ¿© ¼Ò¸® Àڱؿ¡ ´ëÇÑ ¹ÝÀÀÀ» ¾È±¸Àüµµ·ÎºÎÅÍ ÃøÁ¤ÇÏ¿© »çÁö¸¶ºñ Àå¾ÖÀÎÀÇ ÀÌÁø ÀÇ»ç Àü´Þ¿¡ Ȱ¿ëÇÏ´Â »õ·Î¿î ¹æ¹ý·ÐÀ» Á¦¾ÈÇÏ¿´´Ù(Kim et al., Sci. Rep., 2018). ¾Æ·¡ ¿À¸¥ÂÊ ±×¸²Àº Á¦¾ÈµÈ ¹æ¹ýÀÇ °³³äÀ» ³ªÅ¸³»°í ÀÖÀ¸¸ç, ÀÌ ¹æ¹ýÀ» ÁßÁõ ·ç°Ô¸¯ ȯÀÚ¿¡°Ô Àû¿ëÇÑ °á°ú 90% ÀÌ»óÀÇ ³ôÀº Á¤È®µµ¸¦ ¾òÀ» ¼ö ÀÖ¾ú´Ù.
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½Å°æ°úÇÐ ±â¹ýÀ» ÀÌ¿ëÇÑ ¿µÈ ¹× ¹®ÈÄÜÅÙÃ÷ ¿¬±¸ - ´º·Î½Ã³×¸¶Æ½½º(Neurocinematics) º» ¿¬±¸½Ç¿¡¼´Â ´º·Î¸¶ÄÉÆÃÀÇ ÇÑ ºÐ¾ßÀÎ ´º·Î½Ã³×¸¶Æ½½º(Neurocinematics) ¿¬±¸µµ ¼öÇàÇϰí Àִµ¥, ÀÌ ¿¬±¸ÀÇ ¸ñÀûÀº ¿µÈ Àڱؿ¡ ´ëÇÑ ³ú ¹ÝÀÀÀ» »ìÆìº½À¸·Î½á ±Ã±ØÀûÀ¸·Î´Â ¿µÈ¸¦ °´°üÀûÀ¸·Î Æò°¡ÇÒ ¼ö ÀÖ´Â »õ·Î¿î ôµµ¸¦ °³¹ßÇÏ´Â °ÍÀÌ´Ù(Cha et al., BCI, 2015; Shin et al., PLoS ONE, 2015). ¾Æ·¡ ¿ÞÂÊ ±×¸²Àº ¿µÈ('Ãß°ÝÀÚ')¸¦ ½ÃûÇÏ´Â µ¿¾È ³²³à¿¡°Ô¼ ÃøÁ¤µÈ »ýü½ÅÈ£ÀÇ ½Ã°£¿¡ µû¸¥ º¯È¸¦ ³ªÅ¸³»°í ÀÖÀ¸¸ç ¿À¸¥ÂÊ ±×¸²Àº °¨Á¤À» À¯¹ßÇÏ´Â µ¿¿µ»óÀ» ½ÃûÇÏ´Â µ¿¾È ´Ù¼öÀÇ ½ÃûÀÚ¿¡°Ô¼ ÃøÁ¤µÈ ³úÆÄÀÇ Àü¿ª µ¿±âÈ ÁöÇ¥ÀÇ º¯È¸¦ ÃßÀûÇÑ °á°ú¸¦ ³ªÅ¸³»°í ÀÖ´Ù (Han et al., Front. Hum. Neurosci., 2017). ÀÌ·¯ÇÑ ÁöÇ¥¸¦ Ȱ¿ëÇÏ¸é ¿µÈ ¹× ¹®ÈÄÜÅÙÃ÷ÀÇ È¿°úÀûÀÎ °¨Á¤ À¯¹ß ¿©ºÎ¸¦ º¸´Ù °´°üÀûÀ¸·Î Æò°¡ÇÒ ¼ö ÀÖ¾î ¿µÈÀÇ ÆíÁý °úÁ¤À̳ª CF, ¿µÈ ¿¹°íÆí µîÀÇ Á¦ÀÛ¿¡ Å« µµ¿òÀÌ µÉ ¼ö ÀÖ´Ù. º» ¿¬±¸½Ç¿¡¼´Â ÀÌ ¿Ü¿¡µµ ³úÆÄ ¹× ´Ù¾çÇÑ »ýü½ÅÈ£¸¦ ÀÌ¿ëÇÏ¿© »ç¿ëÀÚÀÇ °¨Á¤ º¯È¸¦ ÃßÀûÇÏ´Â »õ·Î¿î ±â¼úÀ» °³¹ßÇϱâ À§ÇØ ´Ù¾çÇÑ ¿µ»ó ÀÚ±ØÀ» Ȱ¿ëÇϰí ÀÖ´Ù.
References - Do Yeon Kim, Chang-Hee Han, and Chang-Hwan Im, "Development of an electrooculogram-based human-computer interface using involuntary eye movement by spatially rotating sound for communication of locked-in patients," Scientific Reports, vol. 8, Art.No. 9505, 2018. - Hodam Kim, Jihyeon Ha, Won-Du Chang, Wanjoo Park, Laehyun Kim, and Chang-Hwan Im, "Detection of Craving for Gaming in Adolescents with Internet Gaming Disorder Using Multimodal Biosignals,"Sensors, vol. 18, Art.No. 102, 2018. - Chang-Hee Han, Jun-Hak Lee, Jeong-Hwan Lim, Yong-Wook Kim, and Chang-Hwan Im, "Global electroencephalography synchronization as a new indicator for tracking emotional changes of a group of individuals during video watching," Frontiers in Human Neuroscience, vol. 11, Art.No. 577, 2017. - Won-Du Chang, Ho-Seung Cha, Do Yeon Kim, Seung Hyun Kim, and Chang-Hwan Im, "Development of an electrooculogram-based eye-computer interface for communication of individuals with amyotrophic lateral sclerosis," Journal of Neuroengineering and Rehabilitation, vol. 14, Art.No. 89, 2017. - Kwang-Ryeol Lee, Won-Du Chang, Sungkean Kim, and Chang-Hwan Im, "Real-time "Eye-Writing" Recognition Using Electrooculogram," IEEE Transactions on Neural Systems and Rehabilitation Engineering, vol. 25, no. 1, pp. 37-48, 2017. - Do-Won Kim, Dae-Woon Lee, Jurgen Schreiber, Chang-Hwan Im, and Han Sung Kim, "Integrative evaluation of automated massage combined with thermotherapy: Physical, physiological, and psychological viewpoints," BioMed Research International, vol. 2016, Art.ID.2826905, 2016. - Hodam Kim, Jeong-Youn Kim, and Chang-Hwan Im "Fast and Robust Real-time Estimation of Respiratory Rate from Photoplethysmography ," Sensors, vol. 16, Art.No. 1494, 2016. - Ho-Seung Cha, Won-Du Chang, and Chang-Hwan Im, "A real-time lip gesture recognition system using facial EMG," proceedings of the 38th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (IEEE EMBC), Orlando, US, August, 2016. - Jeong-Youn Kim, Kun-Il Kim, Chang-Hee Han, Jeong-Hwan Lim, and Chang-Hwan Im "Estimating Consumer¡¯s Subjective Preference Using Functional Near-infrared Spectroscopy: A Feasibility Study ," Journal of Near Infrared Spectroscopy, in press, 2016. - Won-Du Chang, Ho-Seung Cha, and Chang-Hwan Im, "Removing Interdependency between Horizontal and Vertical Eye-Movement Components in Electrooculograms" Sensors, vol. 16, no. 2, Art.No. 227, 2016. - Won-Du Chang, Jeong-Hwan Lim, and Chang-Hwan Im, "An unsupervised eye blink artifact detection method for real-time electroencephalogram processing" Physiological Measurement, vol. 37, pp. 401-417, 2016. - Ho-Seung Cha, Won-Du Chang, Young Seok Shin, Dong Pyo Jang, and Chang-Hwan Im, "EEG-based neurocinematics: challenges and prospects," Brain-Computer Interfaces, vol. 2, no. 4, pp. 186-192, 2015. - Young Seok Shin, Won-Du Chang, Jinsick Park, Chang-Hwan Im, Sang In Lee, In Young Kim, Dong Pyo Jang, "Correlation between Inter Blink Interval and Episodic Encoding during Movie Watching," PLoS ONE, vol. 10, no. 11, Art.ID. e0141242, 2015. |