{"created":"2023-05-15T14:56:23.457634+00:00","id":76595,"links":{},"metadata":{"_buckets":{"deposit":"dd02c71f-2de1-4b55-90a6-4083be3a00f7"},"_deposit":{"created_by":1,"id":"76595","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"76595"},"status":"published"},"_oai":{"id":"oai:repo.qst.go.jp:00076595","sets":["1"]},"author_link":["901799","901801","901800","901798"],"item_8_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2019-08","bibliographicIssueDateType":"Issued"},"bibliographicPageStart":"816","bibliographicVolumeNumber":"13","bibliographic_titles":[{"bibliographic_title":"Frontiers in neuroscience"}]}]},"item_8_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"Humans and animals show diverse preferences for risks (\"trait-like\" risk attitude) and shift their preference depending on the state or current needs (\"state-dependent\" risk attitude). For a better understanding of the neural mechanisms underlying risk-sensitive decisions, useful animal models have been required. Here we examined the risk attitude of three male monkeys in a single-option response task, in which an instrumental lever-release was required to obtain a chance of reward. In each trial, reward condition, either deterministic (100% of 1, 2, 3, and 4 drops of juice) or probabilistic (25, 50, 75, and 100% of 4-drop juice) was randomly selected and assigned by a unique visual cue, allowing the monkeys to evaluate the forthcoming reward. The subjective value of the reward was inferred from their performance. Model-based analysis incorporating known economic models revealed non-linear probability distortion in monkeys; unlike previous studies, they showed a simple convex or concave probability distortion curve. The direction of risk preference was consistent between early and late phases of the testing period, suggesting that our observation reflected the trait-like risk attitude of monkeys, at least under the current experimental setting. Regardless of the baseline risk preference, all monkeys showed an enhancement of risk preference in a session according to the satiation level (i.e., state-dependent risk attitude). Our results suggest that, without choice or cognitive demand, monkeys show naturalistic risk attitude - diverse and flexible like humans. Our novel approach may provide a useful animal model of risk-sensitive decisions, facilitating the investigation of the neural mechanisms of decision-making under risk.","subitem_description_type":"Abstract"}]},"item_8_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"Frontiers"}]},"item_8_relation_13":{"attribute_name":"PubMed番号","attribute_value_mlt":[{"subitem_relation_type_id":{"subitem_relation_type_id_text":"31447636","subitem_relation_type_select":"PMID"}}]},"item_8_relation_14":{"attribute_name":"DOI","attribute_value_mlt":[{"subitem_relation_type_id":{"subitem_relation_type_id_text":"10.3389/fnins.2019.00816","subitem_relation_type_select":"DOI"}}]},"item_8_relation_17":{"attribute_name":"関連サイト","attribute_value_mlt":[{"subitem_relation_type_id":{"subitem_relation_type_id_text":"https://www.frontiersin.org/articles/10.3389/fnins.2019.00816/full","subitem_relation_type_select":"URI"}}]},"item_8_source_id_9":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"1662-453X","subitem_source_identifier_type":"ISSN"}]},"item_access_right":{"attribute_name":"アクセス権","attribute_value_mlt":[{"subitem_access_right":"metadata only access","subitem_access_right_uri":"http://purl.org/coar/access_right/c_14cb"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Fujimoto, Atsushi"}],"nameIdentifiers":[{"nameIdentifier":"901798","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Minamimoto, Takafumi"}],"nameIdentifiers":[{"nameIdentifier":"901799","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Fujimoto, Atsushi","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"901800","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Minamimoto, Takafumi","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"901801","nameIdentifierScheme":"WEKO"}]}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"eng"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourcetype":"journal article","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"Trait and State-Dependent Risk Attitude of Monkeys Measured in a Single-Option Response Task","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Trait and State-Dependent Risk Attitude of Monkeys Measured in a Single-Option Response Task"}]},"item_type_id":"8","owner":"1","path":["1"],"pubdate":{"attribute_name":"公開日","attribute_value":"2019-08-29"},"publish_date":"2019-08-29","publish_status":"0","recid":"76595","relation_version_is_last":true,"title":["Trait and State-Dependent Risk Attitude of Monkeys Measured in a Single-Option Response Task"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-05-15T21:15:58.908278+00:00"}