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The neural mechanisms underlying the aging-related enhancement of positive affects: electrophysiological evidences

Overview of attention for article published in Frontiers in Aging Neuroscience, August 2015
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Title
The neural mechanisms underlying the aging-related enhancement of positive affects: electrophysiological evidences
Published in
Frontiers in Aging Neuroscience, August 2015
DOI 10.3389/fnagi.2015.00143
Pubmed ID
Authors

Xianxin Meng, Jiemin Yang, AYan Cai, XinSheng Ding, Wenwen Liu, Hong Li, JiaJin Yuan

Abstract

Background: Previous studies reported that old adults, relative to young adults, showed improvement of emotional stability and increased experiences of positive affects. Methods: In order to better understand the neural underpinnings behind the aging-related enhancement of positive affects, it is necessary to investigate whether old and young adults differ in the threshold of eliciting positive or negative emotional reactions. However, no studies have examined emotional reaction differences between old and young adults by manipulating the intensity of emotional stimuli to date. To clarify this issue, the present study examined the impact of aging on the brain's susceptibility to affective pictures of varying emotional intensities. We recorded event-related potentials (ERP) for highly negative (HN), mildly negative (MN) and neutral pictures in the negative experimental block; and for highly positive (HP), mildly positive (MP) and neutral pictures in the positive experimental block, when young and old adults were required to count the number of pictures, irrespective of the emotionality of the pictures. Results: Event-related potentials results showed that LPP (late positive potentials) amplitudes were larger for HN and MN stimuli compared to neutral stimuli in young adults, but not in old adults. By contrast, old adults displayed larger LPP amplitudes for HP and MP relative to neutral stimuli, while these effects were absent for young adults. In addition, old adults reported more frequent perception of positive stimuli and less frequent perception of negative stimuli than young adults. The post-experiment stimulus assessment showed more positive ratings of Neutral and MP stimuli, and reduced arousal ratings of HN stimuli in old compared to young adults. Conclusion: These results suggest that old adults are more resistant to the impact of negative stimuli, while they are equipped with enhanced attentional bias for positive stimuli. The implications of these results to the aging-related enhancement of positive affects were discussed.

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Mendeley readers

Mendeley readers

The data shown below were compiled from readership statistics for 38 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Unknown 38 100%

Demographic breakdown

Readers by professional status Count As %
Student > Ph. D. Student 7 18%
Researcher 5 13%
Student > Master 4 11%
Student > Doctoral Student 3 8%
Professor 2 5%
Other 3 8%
Unknown 14 37%
Readers by discipline Count As %
Psychology 16 42%
Neuroscience 5 13%
Medicine and Dentistry 2 5%
Engineering 1 3%
Unknown 14 37%
Attention Score in Context

Attention Score in Context

This research output has an Altmetric Attention Score of 2. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 06 August 2015.
All research outputs
#17,574,304
of 25,834,578 outputs
Outputs from Frontiers in Aging Neuroscience
#4,230
of 5,582 outputs
Outputs of similar age
#165,517
of 276,351 outputs
Outputs of similar age from Frontiers in Aging Neuroscience
#45
of 56 outputs
Altmetric has tracked 25,834,578 research outputs across all sources so far. This one is in the 31st percentile – i.e., 31% of other outputs scored the same or lower than it.
So far Altmetric has tracked 5,582 research outputs from this source. They typically receive a lot more attention than average, with a mean Attention Score of 14.5. This one is in the 23rd percentile – i.e., 23% of its peers scored the same or lower than it.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 276,351 tracked outputs that were published within six weeks on either side of this one in any source. This one is in the 39th percentile – i.e., 39% of its contemporaries scored the same or lower than it.
We're also able to compare this research output to 56 others from the same source and published within six weeks on either side of this one. This one is in the 19th percentile – i.e., 19% of its contemporaries scored the same or lower than it.