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When the participant has made their decision about which colour is in the majority, they must touch the panel of that colour at the bottom of the screen to indicate their choice. After the participant has indicated their choice, all the remaining grey boxes on the screen reveal their colours and a message is displayed to inform the participant whether or not they were correct. The colours change from trial to trial. At the end of a trial the grey boxes are displayed on the screen again at a speed which depends on how fast the trial was completed, so that there is always at least 30 seconds between trials.\r\n\r\nThere are two conditions \u00e2\u0080\u0093 the fixed win condition, in which the subject is awarded 100 points for a correct decision regardless of the number of boxes opened, and the decreasing win condition, in which the number of points that can be won for a correct decision starts at 250 and decreases by 10 points for every box touched. In either condition, an incorrect decision costs 100 points.", "id_user": "usr_4de5345b3b6a8", "id": "trm_50f73d557c967", "type": "task", "conditions": [{"creation_time": 1512660618588, "event_stamp": "2013-01-16T23:53:45", "last_updated": 1512660618588, "condition_text": "decreasing win", "name": "decreasing win", "condition_description": "number of points that can be won for a correct decision starts at 250 and decreases by 10 points for every box touched", "id_user": "usr_4de5345b3b6a8", "id": "con_50f73d891f5be", "relationship": "HASCONDITION"}, {"creation_time": 1512660618557, "event_stamp": "2013-01-16T23:53:23", "last_updated": 1512660618557, "condition_text": "fixed win", "name": "fixed win", "condition_description": " subject is awarded 100 points for a correct decision regardless of the number of boxes opened", "id_user": "usr_4de5345b3b6a8", "id": "con_50f73d738249e", "relationship": "HASCONDITION"}], "concepts": [{"id_concept_class": "ctp_C3", "creation_time": 1512660629280, "event_stamp": "2009-06-22T19:12:55", "def_id_user": "usr_49a467bf4e0db", "def_event_stamp": "2015-05-20T21:39:02", "last_updated": 1512660629280, "def_id": "def_555cfef66688f", "name": "decision making", "alias": "", "definition_text": "The deliberate selection of a single alternative amongst multiple alternatives. ", "id_user": "usr_0000000000", "relationship": "ASSERTS", "concept_id": "trm_4a3fd79d0a038", "contrasts": [{"id": "cnt_50f73de372e77", "name": "probability of the participant's decision being correct based on the available evidence at the time of the decision"}]}, {"creation_time": 1512660639823, "last_updated": 1512660639823, "def_event_stamp": "2012-07-18T19:26:06", "id_user": "usr_4f177506dde77", "id_concept_class": "", "event_stamp": "2012-07-18T19:26:06", "def_id_user": "usr_4f177506dde77", "def_id": "def_50070dce18f25", "name": "impulsivity", "alias": "impulsiveness", "definition_text": "the tendency to act without adequately assessing context", "contrasts": [{"creation_time": 1512660667372, "event_stamp": "2013-01-16T23:55:15", "last_updated": 1512660667372, "name": "probability of the participant's decision being correct based on the available evidence at the time of the decision", "id_user": "usr_4de5345b3b6a8", "id": "cnt_50f73de372e77"}], "concept_id": "trm_50070dce14554"}], "indicators": [{"type": "response time", "relationship": "HASINDICATOR"}, {"type": "accuracy", "relationship": "HASINDICATOR"}], "external_datasets": [], "implementations": [], "citation": [{"event_stamp": "2013-01-16T23:58:05", "citation_pubname": "Psychopharmacology (Psychopharmacology (Berl))", "citation_pmid": "18818905", "citation_desc": "Methylphenidate improves response inhibition but not reflection-impulsivity in children with attention deficit hyperactivity disorder (ADHD).", "citation_type": "CT2", "citation_url": "http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&id=18818905&retmode=ref&cmd=prlinks", "citation_comment": "", "id_user": "usr_4de5345b3b6a8", "id": "cit_50f73e8d0b6ef", "citation_source": "PubMed API", "citation_authors": "DeVito EE, Blackwell AD, Clark L, Kent L, Dezsery AM, Turner DC, Aitken MR, Sahakian BJ", "citation_pubdate": "2009 Jan", "relationship": "HASCITATION"}, {"event_stamp": "2013-01-16T23:56:47", "citation_pubname": "Addiction (Abingdon, England) (Addiction)", "citation_pmid": "19466924", "citation_desc": "Problem gamblers share deficits in impulsive decision-making with alcohol-dependent individuals.", "citation_type": "CT2", "citation_url": "http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&id=19466924&retmode=ref&cmd=prlinks", "citation_comment": "", "id_user": "usr_4de5345b3b6a8", "id": "cit_50f73e3fb9dc7", "citation_source": "PubMed API", "citation_authors": "Lawrence AJ, Luty J, Bogdan NA, Sahakian BJ, Clark L", "citation_pubdate": "2009 Jun", "relationship": "HASCITATION"}, {"citation_pubname": "", "event_stamp": "2013-01-16T23:55:47", "citation_pmid": "", "citation_desc": "http://www.cantab.com/cantab-tests-Information-Sampling-Task.asp?t=Decision%20Making%20and%20Response%20Control", "citation_type": "CTM", "citation_url": "", "citation_comment": "", "id_user": "usr_4de5345b3b6a8", "id": "cit_50f73e03e2690", "citation_source": "Manual", "citation_authors": "", "citation_pubdate": "", "relationship": "HASCITATION"}], "contrasts": [{"creation_time": 1512660667372, "event_stamp": "2013-01-16T23:55:15", "last_updated": 1512660667372, "name": "probability of the participant's decision being correct based on the available evidence at the time of the decision", "id_user": "usr_4de5345b3b6a8", "id": "cnt_50f73de372e77", "conditions": []}, {"creation_time": 1512660667341, "event_stamp": "2013-01-16T23:54:36", "last_updated": 1512660667341, "name": "mean number of boxes opened", "id_user": "usr_4de5345b3b6a8", "id": "cnt_50f73dbc3a2e7", "conditions": []}], "batteries": [{"creation_time": 1512660839387, "event_stamp": "2013-01-08T17:35:12", "website": "None", "last_updated": 1512660839387, "collection_alias": "CANTAB", "name": "Cambridge Neuropsychological Test Automated Battery", "collection_date_introduced": "None", "collection_publisher": "Cambridge Cognition", "id_user": "usr_49a467bf4e0db", "collection_description": "CANTAB is a battery of automated cognitive tests meant to capture a number of cognitive domains.", "id": "tco_50ec58d050cf5", "flag_for_curator": 1, "relationship": "INBATTERY"}], "disorders": []}