{"id_concept_class": "", "creation_time": 1512660596070, "event_stamp": "2015-03-19T23:30:34", "def_id_user": "usr_51bc76ae9636c", "def_event_stamp": "2015-04-28T17:25:05", "last_updated": 1512660596070, "def_id": "def_553fc271b47ad", "name": "gambling fMRI task paradigm", "alias": "gambling task", "definition_text": "This task was adapted from the one developed by Delgado and Fiez (Delgado et al. 2000). Participants play a card guessing game where they are asked to guess the number on a mystery card (represented by a \u00e2\u0080\u009c?\u00e2\u0080\u009d) in order to win or lose money. Participants are told that potential card numbers range from 1-9 and to indicate if they think the mystery card number is more or less than 5 by pressing one of two buttons on the response box. Feedback is the number on the card (generated by the program as a function of whether the trial was a reward, loss or neutral trial) and either: 1) a green up arrow with \u00e2\u0080\u009c$1\u00e2\u0080\u009d for reward trials, 2) a red down arrow next to -$0.50 for loss trials; or 3) the number 5 and a gray double headed arrow for neutral trials. The \u00e2\u0080\u009c?\u00e2\u0080\u009d is presented for up to 1500 ms (if the participant responds before 1500 ms, a fixation cross is displayed for the remaining time), following by feedback for 1000 ms. There is a 1000 ms ITI with a \u00e2\u0080\u009c+\u00e2\u0080\u009d presented on the screen. The task is presented in blocks of 8 trials that are either mostly reward (6 reward trials pseudo randomly interleaved with either 1 neutral and 1 loss trial, 2 neutral trials, or 2 loss trials) or mostly loss (6 loss trials pseudorandomly interleaved with either 1 neutral and 1 reward trial, 2 neutral trials, or 2 reward trials). In each of the two runs, there are 2 mostly reward and 2 mostly loss blocks, interleaved with 4 fixation blocks (15 seconds each).\r\n\r\nThis task is part of the Human Connectome Project (HCP) 500 subject data relase.\r\nhttp://humanconnectome.org/documentation/S500/HCP_S500+MEG2_Release_Reference_Manual.pdf\r\n\r\nReferences for Gambling Task: Reliable across subjects and robust activation in fMRI (Delgado\r\net al. 2000; May et al. 2004; Tricomi et al. 2004; Forbes et al. 2009)", "id_user": "usr_51bc76ae9636c", "id": "trm_550b5c1a7f4db", "type": "task", "conditions": [{"creation_time": 1512660622794, "event_stamp": "2015-03-19T23:31:59", "last_updated": 1512660622794, "condition_text": "Neutral trials", "name": "Neutral trials", "condition_description": "event-related", "id_user": "usr_51bc76ae9636c", "id": "con_550b5c6fa8e76", "relationship": "HASCONDITION"}, {"creation_time": 1512660622749, "event_stamp": "2015-03-19T23:31:49", "last_updated": 1512660622749, "condition_text": "Loss trials", "name": "Loss trials", "condition_description": "event-related", "id_user": "usr_51bc76ae9636c", "id": "con_550b5c65129b1", "relationship": "HASCONDITION"}, {"creation_time": 1512660622707, "event_stamp": "2015-03-19T23:31:38", "last_updated": 1512660622707, "condition_text": "Reward trials", "name": "Reward trials", "condition_description": "event-related", "id_user": "usr_51bc76ae9636c", "id": "con_550b5c5ad13b9", "relationship": "HASCONDITION"}, {"creation_time": 1512660622661, "event_stamp": "2015-03-19T23:31:25", "last_updated": 1512660622661, "condition_text": "Mostly loss blocks", "name": "Mostly loss blocks", "condition_description": "blocked", "id_user": "usr_51bc76ae9636c", "id": "con_550b5c4d74cd7", "relationship": "HASCONDITION"}, {"creation_time": 1512660622614, "event_stamp": "2015-03-19T23:31:13", "last_updated": 1512660622614, "condition_text": "Mostly reward blocks", "name": "Mostly reward blocks", "condition_description": "blocked", "id_user": "usr_51bc76ae9636c", "id": "con_550b5c41f3442", "relationship": "HASCONDITION"}], "concepts": [], "indicators": [], "external_datasets": [{"event_stamp": "2015-03-20T14:36:56", "id_term": "trm_550b5c1a7f4db", "dataset_uri": "http://www.neurovault.org/collections/457", "id_user": "usr_51bc76ae9636c", "id": "dst_550c308833a27", "dataset_name": "NeuroVault Group Maps", "relationship": "HASEXTERNALDATASET"}], "implementations": [], "citation": [], "contrasts": [{"creation_time": 1512660682546, "event_stamp": "2015-04-17T18:02:37", "last_updated": 1512660682546, "name": "Reward minus Punish", "id_user": "usr_51bc76ae9636c", "id": "cnt_55314abd12b63", "conditions": []}, {"creation_time": 1512660682510, "event_stamp": "2015-04-17T18:02:18", "last_updated": 1512660682510, "name": "Negative Reward", "id_user": "usr_51bc76ae9636c", "id": "cnt_55314aaa2239e", "conditions": []}, {"creation_time": 1512660682474, "event_stamp": "2015-04-17T18:01:59", "last_updated": 1512660682474, "name": "Negative Punish", "id_user": "usr_51bc76ae9636c", "id": "cnt_55314a9748fe6", "conditions": []}, {"creation_time": 1512660682442, "event_stamp": "2015-04-17T18:01:46", "last_updated": 1512660682442, "name": "Punish minus Reward", "id_user": "usr_51bc76ae9636c", "id": "cnt_55314a8aa3751", "conditions": []}, {"creation_time": 1512660682407, "event_stamp": "2015-04-17T18:00:43", "last_updated": 1512660682407, "name": "Reward", "id_user": "usr_51bc76ae9636c", "id": "cnt_55314a4b8ec77", "conditions": []}, {"creation_time": 1512660682371, "event_stamp": "2015-04-17T18:00:35", "last_updated": 1512660682371, "name": "Punish", "id_user": "usr_51bc76ae9636c", "id": "cnt_55314a4320df9", "conditions": []}], "batteries": [{"creation_time": 1512660839617, "event_stamp": "2015-03-19T23:32:40", "website": "None", "last_updated": 1512660839617, "collection_alias": "None", "name": "Human Connectome Project (HCP) 500 Subject Release tfMRI", "collection_date_introduced": "None", "collection_publisher": "None", "id_user": "usr_51bc76ae9636c", "collection_description": "None", "id": "tco_550b5c985ca1c", "flag_for_curator": 1, "relationship": "INBATTERY"}], "disorders": []}