{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,7]],"date-time":"2026-01-07T07:37:00Z","timestamp":1767771420383,"version":"3.41.2"},"reference-count":82,"publisher":"World Scientific Pub Co Pte Ltd","issue":"10","funder":[{"name":"MCIN\/AEI","award":["PID2020-115220RB-C21"],"award-info":[{"award-number":["PID2020-115220RB-C21"]}]},{"name":"\u201cERDF A way to make Europe\u201d","award":["EQC2019-006063-P"],"award-info":[{"award-number":["EQC2019-006063-P"]}]},{"name":"Universidad de Castilla-La Mancha and ERDF","award":["2023-GRIN-34436"],"award-info":[{"award-number":["2023-GRIN-34436"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Int. J. Neur. Syst."],"published-print":{"date-parts":[[2023,10]]},"abstract":"<jats:p> Facial affect recognition is a critical skill in human interactions that is often impaired in psychiatric disorders. To address this challenge, tests have been developed to measure and train this skill. Recently, virtual human (VH) and virtual reality (VR) technologies have emerged as novel tools for this purpose. This study investigates the unique contributions of different factors in the communication and perception of emotions conveyed by VHs. Specifically, it examines the effects of the use of action units (AUs) in virtual faces, the positioning of the VH (frontal or mid-profile), and the level of immersion in the VR environment (desktop screen versus immersive VR). Thirty-six healthy subjects participated in each condition. Dynamic virtual faces (DVFs), VHs with facial animations, were used to represent the six basic emotions and the neutral expression. The results highlight the important role of the accurate implementation of AUs in virtual faces for emotion recognition. Furthermore, it is observed that frontal views outperform mid-profile views in both test conditions, while immersive VR shows a slight improvement in emotion recognition. This study provides novel insights into the influence of these factors on emotion perception and advances the understanding and application of these technologies for effective facial emotion recognition training. <\/jats:p>","DOI":"10.1142\/s0129065723500533","type":"journal-article","created":{"date-parts":[[2023,8,6]],"date-time":"2023-08-06T05:39:21Z","timestamp":1691300361000},"source":"Crossref","is-referenced-by-count":10,"title":["Effect of Action Units, Viewpoint and Immersion on Emotion Recognition Using Dynamic Virtual Faces"],"prefix":"10.1142","volume":"33","author":[{"given":"Miguel A.","family":"Vicente-Querol","sequence":"first","affiliation":[{"name":"Instituto de Investigaci\u00f3n en Inform\u00e1tica, Universidad de Castilla-La Mancha, Albacete 02071, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Antonio","family":"Fern\u00e1ndez-Caballero","sequence":"additional","affiliation":[{"name":"Instituto de Investigaci\u00f3n en Inform\u00e1tica, Universidad de Castilla-La Mancha, Albacete 02071, Spain"},{"name":"Departamento de Sistemas Inform\u00e1ticos, Universidad de Castilla-La Mancha, Albacete 02071, Spain"},{"name":"Biomedical Research Networking Centre in Mental Health, Instituto de Salud Carlos III, Madrid 28029, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Pascual","family":"Gonz\u00e1lez","sequence":"additional","affiliation":[{"name":"Instituto de Investigaci\u00f3n en Inform\u00e1tica, Universidad de Castilla-La Mancha, Albacete 02071, Spain"},{"name":"Departamento de Sistemas Inform\u00e1ticos, Universidad de Castilla-La Mancha, Albacete 02071, Spain"},{"name":"Biomedical Research Networking Centre in Mental Health, Instituto de Salud Carlos III, Madrid 28029, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Luz M.","family":"Gonz\u00e1lez-Gualda","sequence":"additional","affiliation":[{"name":"Servicio de Salud Mental, Complejo Hospitalario, Universitario de Albacete, Albacete 02004, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Patricia","family":"Fern\u00e1ndez-Sotos","sequence":"additional","affiliation":[{"name":"Biomedical Research Networking Centre in Mental Health, Instituto de Salud Carlos III, Madrid 28029, Spain"},{"name":"Servicio de Salud Mental, Complejo Hospitalario, Universitario de Albacete, Albacete 02004, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jos\u00e9 P.","family":"Molina","sequence":"additional","affiliation":[{"name":"Instituto de Investigaci\u00f3n en Inform\u00e1tica, Universidad de Castilla-La Mancha, Albacete 02071, Spain"},{"name":"Departamento de Sistemas Inform\u00e1ticos, Universidad de Castilla-La Mancha, Albacete 02071, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Arturo S.","family":"Garc\u00eda","sequence":"additional","affiliation":[{"name":"Instituto de Investigaci\u00f3n en Inform\u00e1tica, Universidad de Castilla-La Mancha, Albacete 02071, Spain"},{"name":"Departamento de Sistemas Inform\u00e1ticos, Universidad de Castilla-La Mancha, Albacete 02071, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"219","published-online":{"date-parts":[[2023,9,14]]},"reference":[{"key":"S0129065723500533BIB001","doi-asserted-by":"crossref","first-page":"320","DOI":"10.1007\/978-3-319-13105-4_46","volume-title":"Ambient Assisted Living and Daily Activities","author":"Castillo J. 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