Dimensional Information-Theoretic Measurement of Facial Emotion Expressions in Schizophrenia
المؤلفون المشاركون
Hamm, Jihun
Pinkham, Amy
Gur, Ruben C.
Verma, Ragini
Kohler, Christian G.
المصدر
Schizophrenia Research and Treatment
العدد
المجلد 2014، العدد 2014 (31 ديسمبر/كانون الأول 2014)، ص ص. 1-10، 10ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2014-02-25
دولة النشر
مصر
عدد الصفحات
10
التخصصات الرئيسية
الملخص EN
Altered facial expressions of emotions are characteristic impairments in schizophrenia.
Ratings of affect have traditionally been limited to clinical rating scales and facial muscle movement analysis, which require extensive training and have limitations based on methodology and ecological validity.
To improve reliable assessment of dynamic facial expression changes, we have developed automated measurements of facial emotion expressions based on information-theoretic measures of expressivity of ambiguity and distinctiveness of facial expressions.
These measures were examined in matched groups of persons with schizophrenia (n=28) and healthy controls (n=26) who underwent video acquisition to assess expressivity of basic emotions (happiness, sadness, anger, fear, and disgust) in evoked conditions.
Persons with schizophrenia scored higher on ambiguity, the measure of conditional entropy within the expression of a single emotion, and they scored lower on distinctiveness, the measure of mutual information across expressions of different emotions.
The automated measures compared favorably with observer-based ratings.
This method can be applied for delineating dynamic emotional expressivity in healthy and clinical populations.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Hamm, Jihun& Pinkham, Amy& Gur, Ruben C.& Verma, Ragini& Kohler, Christian G.. 2014. Dimensional Information-Theoretic Measurement of Facial Emotion Expressions in Schizophrenia. Schizophrenia Research and Treatment،Vol. 2014, no. 2014, pp.1-10.
https://search.emarefa.net/detail/BIM-1047467
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Hamm, Jihun…[et al.]. Dimensional Information-Theoretic Measurement of Facial Emotion Expressions in Schizophrenia. Schizophrenia Research and Treatment No. 2014 (2014), pp.1-10.
https://search.emarefa.net/detail/BIM-1047467
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Hamm, Jihun& Pinkham, Amy& Gur, Ruben C.& Verma, Ragini& Kohler, Christian G.. Dimensional Information-Theoretic Measurement of Facial Emotion Expressions in Schizophrenia. Schizophrenia Research and Treatment. 2014. Vol. 2014, no. 2014, pp.1-10.
https://search.emarefa.net/detail/BIM-1047467
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1047467
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
تقوم هذه الخدمة بالتحقق من التشابه أو الانتحال في الأبحاث والمقالات العلمية والأطروحات الجامعية والكتب والأبحاث باللغة العربية، وتحديد درجة التشابه أو أصالة الأعمال البحثية وحماية ملكيتها الفكرية. تعرف اكثر