{"id_concept_class": "", "creation_time": 1512660587210, "event_stamp": "2011-04-13T23:38:38", "def_id_user": "usr_4f177506dde77", "def_event_stamp": "2012-07-16T22:00:26", "last_updated": 1512660587210, "def_id": "def_50048efa79097", "name": "Color Trails Test", "alias": "CTT", "definition_text": "Designed to be a culturally fair analog of the trail making test (TMT), the CTT presents numbered colored circles and universal sign language symbols. 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