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Patterns of visual scanning as predi...

Wong, Bonnie.

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Patterns of visual scanning as predictors of emotional identification in normal aging.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Patterns of visual scanning as predictors of emotional identification in normal aging./
作者:	Wong, Bonnie.
面頁冊數:	82 p.
附註:	Source: Dissertation Abstracts International, Volume: 64-08, Section: B, page: 4103.
Contained By:	Dissertation Abstracts International64-08B.
標題:	Psychology, Psychobiology. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3101100
ISBN:	0496486888

Patterns of visual scanning as predictors of emotional identification in normal aging.
Wong, Bonnie.

Patterns of visual scanning as predictors of emotional identification in normal aging. - 82 p.

Source: Dissertation Abstracts International, Volume: 64-08, Section: B, page: 4103.

Thesis (Ph.D.)--Boston University, 2004.

The ability to identify emotion through facial expressions appears to change with normal aging. This change may contribute to the increased introversion and social withdrawal that some older individuals demonstrate. A problem with studies describing age-related deficits in emotion identification is that none have examined whether the perception of the emotional information was intact. Although it is known that visual scanning changes in normal aging, what has been unaddressed is how these scanning abnormalities may affect emotional processing in the elderly. In the present study, the eye movements of 20 healthy elderly (mean age = 69.5 years) and 20 healthy young adults (mean age = 19.1 years) were recorded using a non-invasive eye-tracking system while they viewed facial stimuli expressing six emotions (anger, fear, disgust, happiness, surprise, and sadness). The mean number of fixations for each expression along with fixation patterns were analyzed and correlated with performance on a visual emotion-identification task. In both participant groups, positive correlations were found between pattern of fixation and accuracy of identification for certain emotions (i.e., more fixations resulted in improved accuracy). The elderly group made significantly fewer fixations than the young group overall for all emotions. Further, relative to the young group, the elderly group made a significantly higher proportion of their total fixations to the lower half of the face than to the upper half, which negatively correlated with their ability to identify accurately a number of facial expressions. Performance on an auditory task of prosodic emotion identification was comparable for the groups for most emotions, suggesting that some of the deficits in emotion identification seen in the elderly are specific to the visual domain. Taken together, these results suggest that visual scanning deficits exhibited by the elderly may contribute substantially to their difficulties in identifying emotion in others. Impairments in emotion identification in the elderly reported in the literature may not be entirely due to pathology affecting medial temporal lobe functioning as suggested, but instead may be accounted for by age-related degeneration of the frontal lobes including the frontal eye fields, which are important for visual scanning.

ISBN: 0496486888Subjects--Topical Terms:

1017821
Psychology, Psychobiology.

Patterns of visual scanning as predictors of emotional identification in normal aging.
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