{"id_concept_class": "", "creation_time": 1512660598990, "event_stamp": "2015-12-08T21:12:35", "def_id_user": "usr_58348e34eeb70", "def_event_stamp": "2016-11-22T18:31:24", "last_updated": 1512660598990, "def_id": "def_58348efc1c413", "name": "Dimensions task", "alias": "", "definition_text": "Subjects are presented with three three-dimensional (e.g., color, texture, shape) stimuli. Each dimension has three exemplars so all exemplars are on the screen at any time. One dimension (e.g., color) determines reward, and one exemplar in this dimension (e.g. "red") has a higher probability of reward than the others (75% vs. 25%). If rewarded, the subject earns 1 point (the subject is instructed to maximize points). After 15-25 trials the relevant dimension and higher probability feature is switched. This switch is either signaled to the participant (in most versions so far) or not (in one paper).", "id_user": "usr_566738e285cfc", "id": "trm_566747c3d757f", "type": "task", "conditions": [], "concepts": [], "indicators": [], "external_datasets": [], "implementations": [], "citation": [], "contrasts": [], "batteries": [], "disorders": []}