Development of the Japanese version of the Ego‐Dissolution Inventory (EDI)
Abstract Aim Psychedelics have recently gained attention as potential therapeutic agents for various psychiatric disorders. Previous research has highlighted that a diminished sense of self, commonly termed “ego‐dissolution” is a pivotal feature of the psychedelic‐induced state. While the Ego‐Dissol...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2024-03-01
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| Series: | Neuropsychopharmacology Reports |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/npr2.12419 |
| _version_ | 1797263665002446848 |
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| author | Keisuke Kusudo Hideaki Tani Kengo Yonezawa Shinichiro Nakajima Matthew M. Nour Robin Carhart‐Harris Hiroyuki Uchida |
| author_facet | Keisuke Kusudo Hideaki Tani Kengo Yonezawa Shinichiro Nakajima Matthew M. Nour Robin Carhart‐Harris Hiroyuki Uchida |
| author_sort | Keisuke Kusudo |
| collection | DOAJ |
| description | Abstract Aim Psychedelics have recently gained attention as potential therapeutic agents for various psychiatric disorders. Previous research has highlighted that a diminished sense of self, commonly termed “ego‐dissolution” is a pivotal feature of the psychedelic‐induced state. While the Ego‐Dissolution Inventory (EDI) is a widely acknowledged instrument for measuring this phenomenon, no Japanese version has been available. This study aimed to develop a Japanese version of the EDI. Methods We adhered to the “Guidelines for Best Practices in the Translation and Cultural Modification Process for Patient‐Reported Outcomes Instruments: Document from the ISPOR Committee on Translation and Cultural Modification” during our translation approach. Two Japanese psychiatrists independently conducted initial translations, and a consolidated version was achieved via mutual agreement. This version was then back‐translated to English and assessed by the original authors for consistency. The repetitive modification process was conducted in continuous dialogues with the original authors until they accepted the concluding back‐translated version. Results The finalized, approved back‐translated version of the EDI is presented in the accompanying figure. In addition, the authorized Japanese version of the EDI is included in the Appendix. Conclusions In this study, we successfully developed the Japanese version of the EDI. This instrument will assist in assessing ego‐dissolution experiences associated with psychedelic‐assisted therapy among Japanese speakers. Additional studies are necessary to evaluate the reliability and validity of this newly translated instrument. |
| first_indexed | 2024-04-25T00:16:37Z |
| format | Article |
| id | doaj.art-54c62a26ad1c4586955ee7cbac5a5b7d |
| institution | Directory Open Access Journal |
| issn | 2574-173X |
| language | English |
| last_indexed | 2024-04-25T00:16:37Z |
| publishDate | 2024-03-01 |
| publisher | Wiley |
| record_format | Article |
| series | Neuropsychopharmacology Reports |
| spelling | doaj.art-54c62a26ad1c4586955ee7cbac5a5b7d2024-03-13T03:12:14ZengWileyNeuropsychopharmacology Reports2574-173X2024-03-0144129229710.1002/npr2.12419Development of the Japanese version of the Ego‐Dissolution Inventory (EDI)Keisuke Kusudo0Hideaki Tani1Kengo Yonezawa2Shinichiro Nakajima3Matthew M. Nour4Robin Carhart‐Harris5Hiroyuki Uchida6Department of Neuropsychiatry Keio University School of Medicine Tokyo JapanDepartment of Neuropsychiatry Keio University School of Medicine Tokyo JapanDepartment of Neuropsychiatry Keio University School of Medicine Tokyo JapanDepartment of Neuropsychiatry Keio University School of Medicine Tokyo JapanDepartment of Psychiatry University of Oxford Oxford UKUniversity of California San Francisco Sandler Neurosciences Center San Francisco California USADepartment of Neuropsychiatry Keio University School of Medicine Tokyo JapanAbstract Aim Psychedelics have recently gained attention as potential therapeutic agents for various psychiatric disorders. Previous research has highlighted that a diminished sense of self, commonly termed “ego‐dissolution” is a pivotal feature of the psychedelic‐induced state. While the Ego‐Dissolution Inventory (EDI) is a widely acknowledged instrument for measuring this phenomenon, no Japanese version has been available. This study aimed to develop a Japanese version of the EDI. Methods We adhered to the “Guidelines for Best Practices in the Translation and Cultural Modification Process for Patient‐Reported Outcomes Instruments: Document from the ISPOR Committee on Translation and Cultural Modification” during our translation approach. Two Japanese psychiatrists independently conducted initial translations, and a consolidated version was achieved via mutual agreement. This version was then back‐translated to English and assessed by the original authors for consistency. The repetitive modification process was conducted in continuous dialogues with the original authors until they accepted the concluding back‐translated version. Results The finalized, approved back‐translated version of the EDI is presented in the accompanying figure. In addition, the authorized Japanese version of the EDI is included in the Appendix. Conclusions In this study, we successfully developed the Japanese version of the EDI. This instrument will assist in assessing ego‐dissolution experiences associated with psychedelic‐assisted therapy among Japanese speakers. Additional studies are necessary to evaluate the reliability and validity of this newly translated instrument.https://doi.org/10.1002/npr2.12419depressionEDIEgo‐Dissolution Inventoryhumanpsychedelics |
| spellingShingle | Keisuke Kusudo Hideaki Tani Kengo Yonezawa Shinichiro Nakajima Matthew M. Nour Robin Carhart‐Harris Hiroyuki Uchida Development of the Japanese version of the Ego‐Dissolution Inventory (EDI) Neuropsychopharmacology Reports depression EDI Ego‐Dissolution Inventory human psychedelics |
| title | Development of the Japanese version of the Ego‐Dissolution Inventory (EDI) |
| title_full | Development of the Japanese version of the Ego‐Dissolution Inventory (EDI) |
| title_fullStr | Development of the Japanese version of the Ego‐Dissolution Inventory (EDI) |
| title_full_unstemmed | Development of the Japanese version of the Ego‐Dissolution Inventory (EDI) |
| title_short | Development of the Japanese version of the Ego‐Dissolution Inventory (EDI) |
| title_sort | development of the japanese version of the ego dissolution inventory edi |
| topic | depression EDI Ego‐Dissolution Inventory human psychedelics |
| url | https://doi.org/10.1002/npr2.12419 |
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