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\u038c\u03c1\u03b1\u03c3\u03b7 \u03bc\u03b1\u03c2"},"content":{"rendered":"<p><strong>\u039c\u03b9\u03b1 \u0386\u03b3\u03bd\u03c9\u03c3\u03c4\u03b7 \u03a0\u03bb\u03b5\u03c5\u03c1\u03ac \u03c4\u03b7\u03c2 \u03a5\u03b3\u03b5\u03af\u03b1\u03c2 \u03c4\u03c9\u03bd \u039c\u03b1\u03c4\u03b9\u03ce\u03bd<\/strong><\/p>\n\n\n\n<p>\u03a4\u03b1 \u03b2\u03b9\u03bd\u03c4\u03b5\u03bf\u03c0\u03b1\u03b9\u03c7\u03bd\u03af\u03b4\u03b9\u03b1 \u03b4\u03c1\u03ac\u03c3\u03b7\u03c2 \u03ad\u03c7\u03bf\u03c5\u03bd \u03c3\u03c5\u03c7\u03bd\u03ac \u03c3\u03c5\u03bd\u03b4\u03b5\u03b8\u03b5\u03af \u03bc\u03b5 \u03b3\u03c1\u03ae\u03b3\u03bf\u03c1\u03b5\u03c2 \u03b1\u03bd\u03c4\u03b9\u03b4\u03c1\u03ac\u03c3\u03b5\u03b9\u03c2 \u03ba\u03b1\u03b9 \u03bf\u03be\u03c5\u03b4\u03b5\u03c1\u03ba\u03ae \u03b1\u03bd\u03c4\u03b1\u03bd\u03b1\u03ba\u03bb\u03b1\u03c3\u03c4\u03b9\u03ba\u03ac, \u03b1\u03bb\u03bb\u03ac \u03b7 \u03c3\u03cd\u03b3\u03c7\u03c1\u03bf\u03bd\u03b7 \u03b5\u03c0\u03b9\u03c3\u03c4\u03ae\u03bc\u03b7 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\u03c3\u03c5\u03bc\u03c0\u03bb\u03b7\u03c1\u03c9\u03bc\u03b1\u03c4\u03b9\u03ba\u03ae \u03bc\u03ad\u03b8\u03bf\u03b4\u03bf \u03b3\u03b9\u03b1 \u03cc\u03c3\u03bf\u03c5\u03c2 \u03b8\u03ad\u03bb\u03bf\u03c5\u03bd \u03bd\u03b1 \u03b5\u03bd\u03b9\u03c3\u03c7\u03cd\u03c3\u03bf\u03c5\u03bd \u03c4\u03b7\u03bd \u03bf\u03c0\u03c4\u03b9\u03ba\u03ae \u03c4\u03bf\u03c5\u03c2 \u03b9\u03ba\u03b1\u03bd\u03cc\u03c4\u03b7\u03c4\u03b1.<\/p>\n\n\n\n<p><strong>\u03a0\u03bf\u03b9\u03bf \u0395\u03af\u03bd\u03b1\u03b9 \u03c4\u03bf \u039c\u03ad\u03bb\u03bb\u03bf\u03bd \u03b3\u03b9\u03b1 \u03c4\u03b1 \u0392\u03b9\u03bd\u03c4\u03b5\u03bf\u03c0\u03b1\u03b9\u03c7\u03bd\u03af\u03b4\u03b9\u03b1 \u03ba\u03b1\u03b9 \u03c4\u03b7\u03bd \u039f\u03c0\u03c4\u03b9\u03ba\u03ae \u03a5\u03b3\u03b5\u03af\u03b1;<\/strong><\/p>\n\n\n\n<p>\u0397 \u03c7\u03c1\u03ae\u03c3\u03b7 \u03b2\u03b9\u03bd\u03c4\u03b5\u03bf\u03c0\u03b1\u03b9\u03c7\u03bd\u03b9\u03b4\u03b9\u03ce\u03bd \u03c3\u03b5 \u03ba\u03bb\u03b9\u03bd\u03b9\u03ba\u03cc \u03c0\u03b5\u03c1\u03b9\u03b2\u03ac\u03bb\u03bb\u03bf\u03bd \u03b8\u03b1 \u03bc\u03c0\u03bf\u03c1\u03bf\u03cd\u03c3\u03b5 \u03bd\u03b1 \u03b5\u03be\u03b5\u03bb\u03b9\u03c7\u03b8\u03b5\u03af \u03c3\u03b5 \u03bc\u03b9\u03b1 \u03bd\u03ad\u03b1 \u03bc\u03ad\u03b8\u03bf\u03b4\u03bf \u03b8\u03b5\u03c1\u03b1\u03c0\u03b5\u03af\u03b1\u03c2 \u03bf\u03c0\u03c4\u03b9\u03ba\u03ce\u03bd \u03c0\u03c1\u03bf\u03b2\u03bb\u03b7\u03bc\u03ac\u03c4\u03c9\u03bd \u03cc\u03c0\u03c9\u03c2 \u03b7 \u03b1\u03bc\u03b2\u03bb\u03c5\u03c9\u03c0\u03af\u03b1 \u03ae \u03b7 \u03bc\u03b5\u03b9\u03c9\u03bc\u03ad\u03bd\u03b7 \u03b5\u03c5\u03b1\u03b9\u03c3\u03b8\u03b7\u03c3\u03af\u03b1 \u03b1\u03bd\u03c4\u03af\u03b8\u03b5\u03c3\u03b7\u03c2 \u03bb\u03cc\u03b3\u03c9 \u03b3\u03ae\u03c1\u03b1\u03c4\u03bf\u03c2. \u0391\u03c5\u03c4\u03ad\u03c2 \u03bf\u03b9 \u03b2\u03b5\u03bb\u03c4\u03b9\u03ce\u03c3\u03b5\u03b9\u03c2, \u03c0\u03bf\u03c5 \u03c0\u03c1\u03bf\u03c3\u03c6\u03ad\u03c1\u03b5\u03b9 \u03b7 \u03c3\u03c5\u03bc\u03bc\u03b5\u03c4\u03bf\u03c7\u03ae \u03c3\u03b5 \u03c0\u03b1\u03b9\u03c7\u03bd\u03af\u03b4\u03b9\u03b1 \u03b4\u03c1\u03ac\u03c3\u03b7\u03c2, \u03c5\u03c0\u03bf\u03b4\u03b5\u03b9\u03ba\u03bd\u03cd\u03bf\u03c5\u03bd \u03cc\u03c4\u03b9 \u03c4\u03b1 \u03b2\u03b9\u03bd\u03c4\u03b5\u03bf\u03c0\u03b1\u03b9\u03c7\u03bd\u03af\u03b4\u03b9\u03b1 \u03bc\u03c0\u03bf\u03c1\u03bf\u03cd\u03bd \u03bd\u03b1 \u03b1\u03c0\u03bf\u03c4\u03b5\u03bb\u03ad\u03c3\u03bf\u03c5\u03bd \u03c3\u03cd\u03bc\u03bc\u03b1\u03c7\u03bf \u03c3\u03c4\u03b7\u03bd \u03b5\u03bd\u03af\u03c3\u03c7\u03c5\u03c3\u03b7 \u03c4\u03b7\u03c2 \u03bf\u03c0\u03c4\u03b9\u03ba\u03ae\u03c2 \u03bb\u03b5\u03b9\u03c4\u03bf\u03c5\u03c1\u03b3\u03af\u03b1\u03c2 \u03ba\u03b1\u03b9 \u03c3\u03c4\u03b7\u03bd \u03c5\u03b3\u03b5\u03af\u03b1 \u03c4\u03c9\u03bd \u03bc\u03b1\u03c4\u03b9\u03ce\u03bd.<\/p>\n\n\n\n<p>\u0393\u03b9\u03ac\u03bd\u03bd\u03b7\u03c2 \u03a8\u03ac\u03bb\u03c4\u03b7\u03c2<\/p>\n\n\n\n<p>\u039f\u03c0\u03c4\u03b9\u03ba\u03cc\u03c2-\u039f\u03c0\u03c4\u03bf\u03bc\u03ad\u03c4\u03c1\u03b7\u03c2<\/p>\n\n\n\n<p>\u03a0\u03b7\u03b3\u03ae \u03bc\u03b5\u03bb\u03ad\u03c4\u03b7\u03c2:<\/p>\n\n\n\n<p><a href=\"https:\/\/pmc.ncbi.nlm.nih.gov\/articles\/PMC2819084\">https:\/\/pmc.ncbi.nlm.nih.gov\/articles\/PMC2819084<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>\u039c\u03b9\u03b1 \u0386\u03b3\u03bd\u03c9\u03c3\u03c4\u03b7 \u03a0\u03bb\u03b5\u03c5\u03c1\u03ac \u03c4\u03b7\u03c2 \u03a5\u03b3\u03b5\u03af\u03b1\u03c2 \u03c4\u03c9\u03bd \u039c\u03b1\u03c4\u03b9\u03ce\u03bd \u03a4\u03b1 \u03b2\u03b9\u03bd\u03c4\u03b5\u03bf\u03c0\u03b1\u03b9\u03c7\u03bd\u03af\u03b4\u03b9\u03b1 \u03b4\u03c1\u03ac\u03c3\u03b7\u03c2 \u03ad\u03c7\u03bf\u03c5\u03bd \u03c3\u03c5\u03c7\u03bd\u03ac \u03c3\u03c5\u03bd\u03b4\u03b5\u03b8\u03b5\u03af \u03bc\u03b5 \u03b3\u03c1\u03ae\u03b3\u03bf\u03c1\u03b5\u03c2 \u03b1\u03bd\u03c4\u03b9\u03b4\u03c1\u03ac\u03c3\u03b5\u03b9\u03c2 \u03ba\u03b1\u03b9 \u03bf\u03be\u03c5\u03b4\u03b5\u03c1\u03ba\u03ae \u03b1\u03bd\u03c4\u03b1\u03bd\u03b1\u03ba\u03bb\u03b1\u03c3\u03c4\u03b9\u03ba\u03ac, \u03b1\u03bb\u03bb\u03ac \u03b7 \u03c3\u03cd\u03b3\u03c7\u03c1\u03bf\u03bd\u03b7 \u03b5\u03c0\u03b9\u03c3\u03c4\u03ae\u03bc\u03b7 \u03bc\u03b1\u03c2 \u03b4\u03b5\u03af\u03c7\u03bd\u03b5\u03b9 \u03cc\u03c4\u03b9 \u03bf\u03b9 \u03b5\u03c0\u03b9\u03b4\u03c1\u03ac\u03c3\u03b5\u03b9\u03c2 \u03c4\u03bf\u03c5\u03c2 \u03c6\u03c4\u03ac\u03bd\u03bf\u03c5\u03bd \u03b2\u03b1\u03b8\u03cd\u03c4\u03b5\u03c1\u03b1. \u039d\u03ad\u03b1 \u03ad\u03c1\u03b5\u03c5\u03bd\u03b1 \u03b1\u03bd\u03b1\u03b4\u03b5\u03b9\u03ba\u03bd\u03cd\u03b5\u03b9 \u03cc\u03c4\u03b9 \u03b7 \u03c3\u03c5\u03bc\u03bc\u03b5\u03c4\u03bf\u03c7\u03ae \u03c3\u03b5 \u03c0\u03b1\u03b9\u03c7\u03bd\u03af\u03b4\u03b9\u03b1 \u03b4\u03c1\u03ac\u03c3\u03b7\u03c2 \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03bf\u03b4\u03b7\u03b3\u03ae\u03c3\u03b5\u03b9 \u03c3\u03b5 \u03bc\u03b1\u03ba\u03c1\u03bf\u03c7\u03c1\u03cc\u03bd\u03b9\u03b5\u03c2 \u03b2\u03b5\u03bb\u03c4\u03b9\u03ce\u03c3\u03b5\u03b9\u03c2 \u03c3\u03c4\u03b7\u03bd \u03b5\u03c5\u03b1\u03b9\u03c3\u03b8\u03b7\u03c3\u03af\u03b1 \u03b1\u03bd\u03c4\u03af\u03b8\u03b5\u03c3\u03b7\u03c2 (contrast sensitivity), \u03bc\u03b9\u03b1 \u03b1\u03c0\u03cc \u03c4\u03b9\u03c2 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