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Science and Culture: Painting with invasive pigments
As researchers grapple with how to view urban invasive species, one artist is using the plants to prompt a new perspective from city dwellers.
Image courtesy of Ellie Irons.
Opinion: Measuring how countries adapt to societal aging
The elderly in the US are engaged and active but experiencing high levels of insecurity. Policy measures can help improve America’s and other countries’ age-readiness.
Image courtesy of Shutterstock/Barabasa.
Inner Workings: Fishing for artifacts beneath the waves
Conducting archaeological research underwater may be essential to grasping the early history of Homo sapiens. But the logistical and scientific challenges are many.
Image courtesy of Maritime Archaeology Trust; photograph by Roland Brookes.
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Forest fire.
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Modeling of historic annual fire activity for 37 regions across the continental United States indicates that the relative importance of seasonal temperature, seasonal precipitation, and overall climate in explaining fire activity varied substantially with geography, and that human presence reduced the influence of climate on fire in some regions, according to a study.
Image courtesy of Pixabay/Ylvers.
 Bengalese finch (<em>Lonchura striata domestica</em>).
How genes and experience influence birdsong
Researchers report how the interplay of genes and experience influences differences in learned birdsong.
 Illustration of white matter fibers and subcortical structures of the human brain.
Amygdala and memory
In a memory retrieval task in which 14 participants, 20-54 years of age, viewed a series of non-emotional images, half of which were followed immediately by electrical stimulation of the participants’ amygdala, a brain region involved in prioritizing memories, researchers found that the participants exhibited improved memory in next-day memory recognition tests for the images that were followed by amygdala stimulation, compared with control images, findings with implications for the development of memory enhancement therapies.
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