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The effect of age on neural processing of pleasant soft touch stimuli

Overview of attention for article published in Frontiers in Behavioral Neuroscience, January 2014
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Title
The effect of age on neural processing of pleasant soft touch stimuli
Published in
Frontiers in Behavioral Neuroscience, January 2014
DOI 10.3389/fnbeh.2014.00052
Pubmed ID
Authors

April C. May, Jennifer L. Stewart, Susan F. Tapert, Martin P. Paulus

Abstract

Tactile interactions with our environment stimulate afferent fibers within the skin, which deliver information about sensations of pain, texture, itch and other feelings to the brain as a comprehensive sense of self. These tactile interactions can stimulate brain regions involved in interoception and reward processing. This study examined subjective, behavioral, and neural processing as a function of age during stimulation of A-beta (Aβ) and C tactile (CT) afferents using a soft brush stroke task. 16 adolescents (ages 15-17), 22 young adults (ages 20-28), and 20 mature adults (ages 29-55) underwent a simple continuous performance task while periodically anticipating and experiencing a soft touch to the palm or forearm, during functional magnetic resonance imaging (fMRI). fMRI results showed that adolescents displayed greater bilateral posterior insula activation than young and mature adults across all conditions and stimulus types. Adolescents also demonstrated greater bilateral posterior insula activation than young and mature adults specifically in response to the soft touch condition. Adolescents also exhibited greater activation than mature adults in bilateral inferior frontal gyrus and striatum during the soft touch condition. However, mature adults showed greater striatum activation than adolescents and young adults during anticipation. In the left anterior cingulate cortex, mature adults exhibited greater activation than adolescents and young adults when anticipating the upcoming touch. These results support the hypothesis that adolescents show an exaggerated neural response to pleasant stimulation of afferents, which may have profound effects on how they approach or avoid social and risky situations. In particular, heightened interoceptive reactivity to pleasant stimuli might cause adolescents to seek experiences that are associated with pleasant stimulation.

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Mendeley readers

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Geographical breakdown

Country Count As %
United Kingdom 1 <1%
Switzerland 1 <1%
Unknown 108 98%

Demographic breakdown

Readers by professional status Count As %
Student > Ph. D. Student 27 25%
Researcher 16 15%
Student > Master 10 9%
Student > Doctoral Student 9 8%
Student > Bachelor 8 7%
Other 15 14%
Unknown 25 23%
Readers by discipline Count As %
Psychology 35 32%
Neuroscience 16 15%
Medicine and Dentistry 8 7%
Agricultural and Biological Sciences 6 5%
Engineering 4 4%
Other 9 8%
Unknown 32 29%
Attention Score in Context

Attention Score in Context

This research output has an Altmetric Attention Score of 1. 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 21 March 2014.
All research outputs
#18,367,612
of 22,749,166 outputs
Outputs from Frontiers in Behavioral Neuroscience
#2,590
of 3,157 outputs
Outputs of similar age
#229,340
of 305,230 outputs
Outputs of similar age from Frontiers in Behavioral Neuroscience
#49
of 56 outputs
Altmetric has tracked 22,749,166 research outputs across all sources so far. This one is in the 11th percentile – i.e., 11% of other outputs scored the same or lower than it.
So far Altmetric has tracked 3,157 research outputs from this source. They typically receive a lot more attention than average, with a mean Attention Score of 11.2. This one is in the 10th percentile – i.e., 10% 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 305,230 tracked outputs that were published within six weeks on either side of this one in any source. This one is in the 13th percentile – i.e., 13% 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 1st percentile – i.e., 1% of its contemporaries scored the same or lower than it.