Valence of Emotional Memories: A study of lexical and acoustic features in older adult affective speech
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2019-07-04
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en
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Abstract
Analyzing emotional valence in affective spontaneous speech production remains a challenging task. The current study aims at lexical and acoustic analyses of valence of older adult’s autobiographical memories. A novel valence coding scheme is presented due to the subjective and personal nature of memories and is used to annotate the spontaneous affective speech of 12 older adults (M = 73.00, SD = 5.26). These findings were compared to the results of lexical and acoustic analyses of the same speech samples. A regression analysis showed that valence could successfully be predicted by lexical and acoustic features. A multivariate analysis of variance showed a significant relation between lexical features (word usage) and four acoustic features. In conclusion, this study provides a deeper understanding of valence in spontaneous affective speech production of older adults.
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