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Got a painful paper cut or hangnail?

Do this to ease the pain: Cross your fingers. The journal Current Biology says crossing the injured finger over another can reduce the pain you feel. 19 more words

Connie Sellecca

Dog waits for owner killed in convenience-store robbery

Too often, at great expense and effort, scientists succeed in merely confirming what we already know to be true. A recent example is the publication of a study in the journal Current Biology which … 10 more words

Writing

Dog waits for owner killed in convenience-store robbery

Too often, at great expense and effort, scientists succeed in merely confirming what we already know to be true.

A recent example is the publication of a study in the journal… 445 more words

United States

Key mechanism behind brain connectivity and memory revealed

Schematic of mice with dysfunctional and functional Wnt signaling. 

Memory loss in mice has been successfully reversed following the discovery of new information about a key mechanism underlying the loss of nerve connectivity in the brain, say UCL researchers. 595 more words

NEWS

豌豆也爱冒险

Pea Plants Show Risk Sensitivity

人会选择冒险行为,比如存在两个选择:100%的概率赚100块,和50%的概率赚200块。人们可能会冒险地选择50%概率的选择。

但研究人员发现,植物(豌豆-Pisum sativum)也会有类似行为。

把一株豌豆的根切两半,分别放在两个盆里(两盆总体的营养物质浓度和种类是相同的)。如果一盆的营养物质水平维持稳定,另一盆变来变去,那么植物就会倾向于在稳定的盆里生更多的根。这种情况下,植物的行为是保守的。

但是如果一盆里的营养物质水平保持稳定(但不足以支撑豌豆成长),同时另一盆里的营养物质的水平会时少时多,不稳定。最后发现在另一盆中的根茎会长得比较多,证明植物为了维持自己生存会选择冒险行为。

http://www.sciencemag.org/news/2016/06/plants-can-gamble-according-study

Neuroscience

[PHOTO] Cherry Blossoms Flood the Inokashira Park Lake in Tokyo

Christopher Jobson reports: Every spring, photographer Danilo Dungo spends time at Inokashira Park in Tokyo, famous for its abundance of blooming cherry trees. The photographer has become a master at capturing the event from all angles, especially with aerial shots that show the pink flowers covering the nearby lake…(read more)

Source: Colossal

Mediasphere