{"id_concept_class": "", "creation_time": 1512660601216, "event_stamp": "2017-01-06T17:31:09", "def_id_user": "usr_583366685f18a", "def_event_stamp": "2017-01-06T17:31:09", "last_updated": 1512660601216, "def_id": "def_586fd45d40071", "name": "vertical checkerboard", "alias": "", "definition_text": "The subject views a flashing checkerboard with a vertical elongated shape. As a simplified retinotopic mapping procedure., this provides a rough definition of the boundary between some visual areas, e.g. V1 and V2. This is often contrasted with horizontal checkerboards.", "id_user": "usr_583366685f18a", "id": "trm_586fd45d1bd21", "type": "task", "conditions": [], "concepts": [], "indicators": [], "external_datasets": [], "implementations": [], "citation": [], "contrasts": [], "batteries": [], "disorders": []}