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Age-related changes in the allocatio...

Noecker, Tara L.

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Age-related changes in the allocation of attention to emotional stimuli.

紀錄類型:	書目-語言資料,印刷品 : Monograph/item
正題名/作者:	Age-related changes in the allocation of attention to emotional stimuli./
作者:	Noecker, Tara L.
面頁冊數:	151 p.
附註:	Source: Dissertation Abstracts International, Volume: 71-08, Section: B, page: 5176.
Contained By:	Dissertation Abstracts International71-08B.
標題:	Health Sciences, Aging. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3470051
ISBN:	9781124112749

Age-related changes in the allocation of attention to emotional stimuli.
Noecker, Tara L.

Age-related changes in the allocation of attention to emotional stimuli. - 151 p.

Source: Dissertation Abstracts International, Volume: 71-08, Section: B, page: 5176.

Thesis (Ph.D.)--University of Colorado at Colorado Springs, 2010.

Older adults have been repeatedly shown to exhibit a top-down, age-related attentional bias for information with "positive" emotional content (Mather & Carstensen, 2005). This phenomenon has been investigated using event related potentials [ERPs], but Wood and Kisley (2006) failed to demonstrate an age-related emotional bias. It was hypothesized that the study design, which may have elicited bottom-up and top-down attention, contributed to the failure to find a bias in attention allocation for older adults. Thus, two novel paradigms were constructed which included behavioral and ERP measures, as well as subjective measures of emotional arousal. The current studies included both older (over 55 years of age) and younger (18-22 years of age) adults and were designed to allow for comparison between the studies to help disentangle emotional-biases in attention allocation. The first study was created to draw top-down attention and reduce bottom-up attention to produce a negativity bias for younger adults and a positivity effect for older adults. However, behavioral and self-report measures indicated older adults had the strongest reaction to negative images. Further, behavioral studies indicated that negative images were most distracting for younger adults. Thus, it appears that automatic orienting toward negative information remains intact with age. In addition, the largest late positive potential (LPP) amplitudes were found for positive images, which may suggest suppression of negative images at a cortical level. Further, it was found that the LPP was only measurable after 4-6 image presentations. Too few image presentations may partially explain a failure to find a measurable LPP in the second study. Overall, the results of these studies may inform future LPP research designs and further highlight the dissociation between behavioral and ERP measures of emotional processing.

ISBN: 9781124112749Subjects--Topical Terms:

1669845
Health Sciences, Aging.

Age-related changes in the allocation of attention to emotional stimuli.
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