{"id":311,"date":"2020-12-23T17:04:36","date_gmt":"2020-12-24T01:04:36","guid":{"rendered":"https:\/\/gyree.co\/?p=311"},"modified":"2020-12-23T17:56:33","modified_gmt":"2020-12-24T01:56:33","slug":"%e7%ad%8b%e9%9b%bb%e9%99%a4%e5%8e%bb%e3%81%ae%e7%9c%9f%e5%ae%9f%e8%a7%a3%e9%ba%bb%e9%85%94%e3%81%ab%e3%82%88%e3%82%8b%e9%ba%bb%e7%97%ba%e3%81%a8-asr-ica%e3%81%ae%e6%af%94%e8%bc%83","status":"publish","type":"post","link":"https:\/\/gyree.co\/ja\/%e7%ad%8b%e9%9b%bb%e9%99%a4%e5%8e%bb%e3%81%ae%e7%9c%9f%e5%ae%9f%e8%a7%a3%e9%ba%bb%e9%85%94%e3%81%ab%e3%82%88%e3%82%8b%e9%ba%bb%e7%97%ba%e3%81%a8-asr-ica%e3%81%ae%e6%af%94%e8%bc%83\/","title":{"rendered":"\u7b4b\u96fb\u9664\u53bb\u306e\u771f\u5b9f\u89e3:\u9ebb\u9154\u306b\u3088\u308b\u9ebb\u75fa\u3068 ASR + ICA\u306e\u6bd4\u8f03"},"content":{"rendered":"\n

\u982d\u76ae\u4e0a\u8a08\u6e2c\u8133\u6ce2\u306e\u30ce\u30a4\u30ba\u9664\u53bb\u306b\u306f\u3001\u79c1\u306f\u3044\u3064\u3082EEGLAB\u306e\u30d7\u30e9\u30b0\u30a4\u30f3\u3067\u3042\u308bclean_rawdata()\u3068ICA\u3092\u7d44\u306b\u3057\u3066\u4f7f\u3044\u307e\u3059\u3002clean_rawdata()\u306f\u3001\u4eca\u3067\u306f\u77e5\u540d\u5ea6\u3082\u51fa\u3066\u304d\u305fartifact subspace reconstruction (ASR)\u3092\u76ee\u7389\u306e\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3068\u3057\u3066\u6301\u3063\u3066\u3044\u307e\u3059\u3002\u3053\u306eclean_rawdata()\u3068\u3044\u3046\u30d7\u30e9\u30b0\u30a4\u30f3\u306f\u3001\u79c1\u306e\u304b\u3064\u3066\u306e\u540c\u50da\u3067\u3042\u308bChristian Kothe\u304c\u66f8\u3044\u305f\u3082\u306e\u3067\u3059\u3002\u5f7c\u306fBCILAB\u306e\u4f5c\u8005\u3067\u3001\u305d\u306e\u4e2d\u306b\u975e\u5e38\u306b\u9ad8\u6027\u80fd\u306a\u30ce\u30a4\u30ba\u9664\u53bb\u306e\u30d1\u30a4\u30d7\u30e9\u30a4\u30f3\u304c\u542b\u307e\u308c\u3066\u3044\u307e\u3057\u305f\u3002\u79c1\u306f\u305d\u308c\u3092\u30aa\u30d5\u30e9\u30a4\u30f3\u7528\u306b\u4ed5\u7acb\u3066\u76f4\u3057\u3066\u304f\u308c\u306a\u3044\u304b\u3068\u3001\u3042\u308b\u65e5\u30af\u30ea\u30b9\u30c1\u30e3\u30f3\u306b\u76f4\u8ac7\u5224\u3057\u305f\u306e\u3067\u3059\u3002\u5f7c\u306f\u79c1\u306e\u4f9d\u983c\u3092\u5feb\u8afe\u3057\u3066\u304f\u308c\u3066\u3001\u305f\u3063\u305f\u6570\u65e5\u3067\u3053\u308c\u3092\u4f5c\u3063\u3066\u304f\u308c\u305f\u3082\u306e\u3067\u3059\u3002\u79c1\u306f\u305f\u3060\u30e9\u30c3\u30d1\u30fc\u3092\u66f8\u3044\u305f\u308a\u3001\u4f7f\u3044\u52dd\u624b\u306e\u90e8\u5206\u3067\u7d30\u3005\u3068\u3057\u305f\u6539\u826f\u3092\u52a0\u3048\u305f\u308a\u3001\u3053\u308c\u306bclean_rawdata\u3068\u3044\u3046\u51e1\u5eb8\u306a\u547d\u540d\u3092\u3057\u305f\u3060\u3051\u306b\u3059\u304e\u307e\u305b\u3093\u3002\u3053\u306e\u6b74\u53f2\u7684\u7d4c\u7def\u306f\u4ee5\u4e0b\u306e\u8ad6\u6587\u306e\u30b5\u30d7\u30ea\u30e1\u30f3\u30c8\u306e\u7b2c6\u7bc0\u306b\u3061\u3087\u3053\u3063\u3068\u66f8\u304d\u307e\u3057\u305f\u3002\u8208\u5473\u306e\u3042\u308b\u4eba\u306f\u8aad\u3093\u3067\u307f\u3066\u304f\u3060\u3055\u3044\u3002https:\/\/academic.oup.com\/cercorcomms\/article\/1\/1\/tgaa046\/5881803#207580614<\/a> \u3055\u3066\u3001ASR\u306fICA\u306b\u3068\u3063\u3066\u306f\u7406\u60f3\u7684\u306a\u524d\u51e6\u7406\u3068\u306a\u308a\u307e\u3059\u3002ASR\u306f\u975e\u5b9a\u5e38\u7684\u306a\u30a2\u30d7\u30ed\u30fc\u30c1\uff08\u79fb\u52d5\u7a93\u65b9\u5f0f\uff09\u3092\u3068\u308a\u307e\u3059\u304c\u3001ICA\u306f\u5b9a\u5e38\u6027\u304c\u975e\u5e38\u306b\u91cd\u8981\u306a\u524d\u63d0\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002ASR\u306f\u5929\u6587\u5b66\u7684\u306b\u5927\u304d\u306a\u5916\u308c\u5024\u304c\u6765\u3066\u3082\u3078\u3063\u3061\u3083\u3089\u3067\u3059\u304c\u3001ICA\u306b\u305d\u3093\u306a\u5024\u3092\u4e0e\u3048\u308b\u3068\u5373\u6b7b\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u3001\u4eee\u306b\u30a8\u30e9\u30fc\u304c\u51fa\u306a\u304f\u3066\u3082\u7d50\u679c\u306f\u4f7f\u3044\u7269\u306b\u306a\u308a\u307e\u305b\u3093\u3002 ICA\u306e\u9069\u7528\uff08\u30af\u30ea\u30c3\u30af\u3060\u3051\uff09\u306b\u6bd4\u3079\u308b\u3068ASR\u306e\u4f7f\u3044\u52dd\u624b\u306f\u3084\u3084\u7656\u304c\u3042\u308a\u307e\u3059\u304c\u3001\u95be\u5024\u306bSD = 20\u3092\u4f7f\u3046\u3068\u3044\u3046\u76ee\u5b89(\u3053\u308c\u306b\u3064\u3044\u3066\u306e\u5b9a\u91cf\u7684\u306a\u691c\u8a0e\u306f\u3001\u540c\u50da\u306eChiyuan\u306e\u8ad6\u6587\u3092\u3054\u89a7\u304f\u3060\u3055\u3044 https:\/\/ieeexplore.ieee.org\/abstract\/document\/8768041<\/a> “…Conclusions: Empirical results show that the optimal ASR parameter is between 20 and 30, balancing between removing non-brain signals and retaining brain activities.<\/em>“) \u306b\u5f93\u3063\u3066\u3001\u4ed6\u306f\u9069\u5f53\u306b\u8a66\u3057\u3066\u307f\u308c\u3070\u5927\u4f53\u308f\u304b\u308a\u307e\u3059\u3002<\/p>\n\n\n\n

\u3055\u3066\u3001\u4e0a\u8a18\u306eASR + ICA\u306e\u5ba3\u4f1d\u306f\u5b9a\u6027\u7684\u306a\u3082\u306e\u306b\u3059\u304e\u307e\u305b\u3093\u3002\u305d\u306e\u6027\u80fd\u304c\u5b9a\u91cf\u7684\u306b\u8a3c\u660e\u3067\u304d\u305f\u3089\u3044\u3044\u306e\u306b\uff01 \u3057\u304b\u3057\u3069\u3046\u3084\u3063\u3066\uff1f\u3053\u3053\u3067\u8133\u96fb\u7814\u7a76\u306e\u6c38\u52ab\u56de\u5e30\u554f\u984c\u3001\u3059\u306a\u308f\u3061\u771f\u5b9f\u89e3(ground truth)\u306e\u4e0d\u5728\u304c\u554f\u984c\u306b\u306a\u308a\u307e\u3059\u3002\u8133\u96fb\u7814\u7a76\u306f\u3044\u3064\u3067\u3082\u3053\u306e\u771f\u5b9f\u89e3\u306e\u4e0d\u5728\u306b\u546a\u308f\u308c\u3066\u304d\u307e\u3057\u305f\u3002\u3042\u307e\u308a\u306b\u3082\u9577\u304f\u771f\u5b9f\u89e3\u306e\u300c\u5927\u7a7a\u4f4d\u6642\u4ee3\u300d\u304c\u7d9a\u3044\u305f\u306e\u3067\u3001\u8133\u96fb\u7814\u7a76\u8005\u3089\u306e\u5fc3\u306f\u6df1\u304f\u8755\u307e\u308c\u3001\u5f7c\u3089\u306f\u4e0d\u673d\u306e\u540d\u8457\u300c\u8133\u306e\u96fb\u5834\u300d\u304c\u63cf\u3044\u3066\u307f\u305b\u308b\u7d30\u80de\u5916\u96fb\u4f4d\u306b\u3064\u3044\u3066\u306e\u96fb\u6c17\u751f\u7406\u5b66\u7684\u57fa\u790e\u3088\u308a\u3082\u3001\u4fe1\u53f7\u51e6\u7406\u304c\u751f\u307f\u51fa\u3059\u30ab\u30e9\u30d5\u30eb\u306a\u56f3\u306b\u3070\u304b\u308a\u5fc3\u3092\u596a\u308f\u308c\u308b\u4e8b\u614b\u3068\u306a\u3063\u3066\u3044\u308b\u306e\u3067\u3059\u3002\u5f8c\u8005\u3088\u308a\u3082\u524d\u8005\u306e\u307b\u3046\u304c\u771f\u5b9f\u89e3\u306b\u8fd1\u3044\u306e\u306b\uff01\u30af\u30fc\u30eb\u306a\u540d\u524d\u306e\u89e3\u6790\u624b\u6cd5\u3092\u4f7f\u3063\u3066\u30ab\u30e9\u30d5\u30eb\u306a\u56f3\u3092\u751f\u7523\u3059\u308b\u3053\u3068\u3067\u3001\u6211\u3005\u306f\u771f\u5b9f\u89e3\u306b\u8fd1\u3065\u304f\u3053\u3068\u304c\u3067\u304d\u3066\u3044\u308b\u306e\u3067\u3057\u3087\u3046\u304b\uff1f\u3080\u3057\u308d\u3001\u771f\u5b9f\u89e3\u304c\u4e0d\u5728\u3060\u304b\u3089\u3001\u305d\u306e\u7a74\u3092\u57cb\u3081\u3088\u3046\u3068\u3057\u3066\u3059\u3059\u3093\u3060\u30a8\u30f3\u30b8\u30cb\u30a2\u30ea\u30f3\u30b0\u3092\u5fdc\u7528\u3057\u305f\u304c\u308b\u306e\u3067\u306f\u306a\u3044\u3067\u3057\u3087\u3046\u304b\uff1f\u79c1\u305f\u3061\u306f\u76ee\u3092\u3082\u3063\u3068\u771f\u5b9f\u89e3\u306e\u307b\u3046\u306b\u5411\u3051\u308b\u3079\u304d\u3067\u3059\u3002\u8a71\u3092\u5143\u306b\u623b\u3059\u3068\u3001\u5e78\u3044\u306b\u3082\u3001\u7b4b\u96fb\u304c\u982d\u76ae\u4e0a\u8a08\u6e2c\u8133\u6ce2\u306b\u4e0e\u3048\u308b\u5f71\u97ff\u306e\u771f\u5b9f\u89e3\u3092\u793a\u5506\u3059\u308b\u7814\u7a76\u3092\u3001\u7269\u77e5\u308a\u306a\u8ab0\u304b\u304b\u3089\u4ee5\u524d\u6559\u3048\u3066\u3082\u3089\u3063\u305f\u3053\u3068\u304c\u3042\u308a\u307e\u3059 (Whitham et al., 2007 https:\/\/www.sciencedirect.com\/science\/article\/abs\/pii\/S1388245707001988?via%3Dihub<\/a>). \u79c1\u306f\u3053\u306e\u7814\u7a76\u304c\u3042\u307e\u308a\u306b\u6c17\u306b\u5165\u3063\u3066\u3044\u308b\u306e\u3067\u3001\u4eca\u56de\u306f\u30a8\u30eb\u30bc\u30d3\u30a2\u306b$48.30\u3092\u652f\u6255\u3063\u3066\u3001\u4ee5\u4e0b\u306e\u56f3\u3092\u3053\u3053\u306b\u8ee2\u8f09\u3059\u308b\u3053\u3068\u306b\u3057\u307e\u3057\u305f\u3002<\/p>\n\n\n\n

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Whitham et al. (2007) Clinical Neurophysiology 118:1877\u20131888 Figure 1. \u30e9\u30a4\u30bb\u30f3\u30b9\u3092\u5f97\u3066\u8ee2\u8f09\u3001\u8aac\u660e\u3092\u8ffd\u8a18\u3057\u305f\u3002CPz\u3068Pz\u306e\u4e2d\u9593\u306b\u4f4d\u7f6e\u3059\u308b\u96fb\u6975\u304b\u3089\u8a08\u6e2c\u3057\u305f\u8133\u6ce2\u306ePSD (n=2) \u3002\u57fa\u6e96\u96fb\u4f4d\u306f\u4e21\u8033\u6736\u9023\u7d50\uff08\u3061\u306a\u307f\u306b\u3053\u308c\u306f\u826f\u304f\u306a\u3044\u3084\u308a\u65b9\u306a\u306e\u3067\u3001\u30de\u30cd\u3057\u306a\u3044\u3067\u304f\u3060\u3055\u3044\uff09\u3002A\u3001\u9ebb\u9154\u306b\u3088\u308b\u9ebb\u75fa\u306a\u3057\u3002B\u3001\u9ebb\u9154\u306b\u3088\u308b\u9ebb\u75fa\u3042\u308a\u3002(20 mg\u306ecisatracurium\u3092\u9759\u8108\u6ce8\u5c04)\u3002\u6295\u4e0e\u304b\u30895\u5206\u5f8c\u3001\u53f3\u7dcf\u8153\u9aa8\u795e\u7d4c\u304b\u3089\u77ed\u8dbe\u4f38\u7b4b\u3092\u523a\u6fc0\u3057\u3066\u7b4b\u8089\u306e\u9ebb\u75fa\u3092\u8a55\u4fa1\u3057\u3001\u904b\u52d5\u7531\u6765\u306e\u6d3b\u52d5\u96fb\u4f4d\u304c\u5b8c\u5168\u6d88\u5931\u3057\u305f\u3053\u3068\u3092\u78ba\u8a8d\u3057\u305f\u3002<\/figcaption><\/figure>\n\n\n\n

\u666e\u901a\u306ePSD\u304c\u4e8c\u4eba\u5206\u3042\u308b\u3088\u3046\u306b\u898b\u3048\u307e\u3059\u304c\u3001A\u3068B\u304c\u3042\u308a\u307e\u3059\u3002\u3055\u3066\u3001A\u3068B\u306e\u9055\u3044\u306f\u4f55\u3067\u3057\u3087\u3046\uff1f\u7b54\u3048\u306f\u9ebb\u9154\u306b\u3088\u308b\u7b4b\u8089\u306e\u9ebb\u75fa\u306e\u6709\u7121\u3067\u3059\uff08\u610f\u8b58\u306f\u3042\u308a\u3001\u6307\u5148\u3082\u8ab2\u984c\u3092\u3084\u308b\u7a0b\u5ea6\u306b\u306f\u52d5\u304b\u305b\u307e\u3059\uff09\u3002B\u3067\u306f\u7b4b\u8089\u304c\u9ebb\u75fa\u3057\u3066\u3044\u308b\u306e\u3067\u3001\u7b4b\u96fb\u304c\u767a\u751f\u3057\u307e\u305b\u3093\u3002\u3057\u305f\u304c\u3063\u3066\u3001B\u306e\u30c7\u30fc\u30bf\u306fEMG\u304c\u306a\u3044\u8133\u96fb\u306e\u771f\u5b9f\u89e3\u3068\u898b\u306a\u3059\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u300245 Hz\u306b\u304a\u3044\u3066\u3001A\u3068B\u306e\u30d1\u30ef\u30fc\u306e\u5dee\u306f6dB\u304a\u3088\u307310dB\u3068\u3001\u88ab\u9a13\u8005\u306b\u3088\u3063\u3066\u5dee\u304c\u3042\u308a\u307e\u3059\u3002\u3055\u3066\u3001\u3053\u3053\u3067\u79c1\u304c\u3044\u3064\u3082\u4f7f\u3063\u3066\u3044\u308bASR + ICA\u3060\u3068\u3069\u3046\u306a\u308b\u304b\u3001\u6bd4\u8f03\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n

\"\"
\u672a\u767a\u8868\u30c7\u30fc\u30bf\u3002141\u4eba\u5206\u306e\u30c7\u30fc\u30bf\u306b\u3064\u3044\u3066\u3001CP1\u3068CP2\u306ePSD\u3092\u8a08\u7b97\u3057\u5e73\u5747\u3057\u305f\u3002\u57fa\u6e96\u96fb\u6975\u306fT7\u3068T8\u306e\u5e73\u5747\u96fb\u4f4d\u3068\u3057\u305f\u3002\u9752\u3001\u7121\u52a0\u5de5\u306e\u8133\u96fb\uff08\u30cf\u30a4\u30d1\u30b9\u30d5\u30a3\u30eb\u30bf\u3060\u3051\uff09\u3002\u8d64\u3001ASR (SD=20)\u304a\u3088\u3073\u72ec\u7acb\u6210\u5206\u5206\u6790\u306e\u7d50\u679c\u3092ICLabel\u3067\u8a55\u4fa1\u3057\u3001Brain\u4ee5\u5916\u306e\u30e9\u30d9\u30eb\u304c\u4ed8\u3044\u305f\u3082\u306e\u3092\u3059\u3079\u3066\u68c4\u5374\u3057\u305f\u3082\u306e\u3002ASR + ICA\u306e\u307b\u3046\u306ePSD\u306f1.3 dB\u3060\u3051\u5168\u4f53\u306b\u6301\u3061\u4e0a\u3052\u3066\u3042\u308b\u3002\u3053\u308c\u306f\u30a2\u30eb\u30d5\u30a1\u5e2f\u57df\u306e\u30d4\u30fc\u30af\u3092\u4e21\u6761\u4ef6\u3067\u305d\u308d\u3048\u308b\u305f\u3081\u3002<\/figcaption><\/figure>\n\n\n\n

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