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Friday, January 24, 2020
Individuals who do not have olfactory bulbs should not have the ability to odor. However some females can

Individuals who do not have olfactory bulbs should not have the...

Some people may be able to smell even without key structures that relay odor information from the nose to the brain. Researchers used brain scans to identify two women who appear to be missing their olfactory bulbs, the only parts of the brain known to receive signals about smell sensations from the nose and send…
Lab-grown organoids are more stressed-out than real brain cells

Lab-grown organoids are more stressed-out than real brain cells

CHICAGO — Brain cells grown into clumps in flasks are totally stressed-out and confused. Cells in these clumps have ambiguous identities and make more stress molecules than cells taken directly from human brains, researchers reported October 22 at the annual meeting of the Society for Neuroscience. These cellular clumps are grown using stem cells made…
Light from outside the brain can switch on afferent neuron in monkey brains

Light from outside the brain can switch on afferent neuron in...

CHICAGO — Light pulses from outside a monkey’s brain can activate nerve cells deep within. This external control, described October 20 at the annual meeting of the Society for Neuroscience, might someday help scientists treat brain diseases such as epilepsy. Controlling nerve cell behavior with light, a method called optogenetics, often requires thin optical fibers…
Light from outside the skull can switch on afferent neuron in monkey brains

Light from outside the skull can switch on afferent neuron in...

CHICAGO — Light pulses from outside a monkey’s brain can activate nerve cells deep within. This external control, described October 20 at the annual meeting of the Society for Neuroscience, might someday help scientists treat brain diseases such as epilepsy. Controlling nerve cell behavior with light, a method called optogenetics, often requires thin optical fibers…
Alzheimer’s might rush metabolic process’s connection to sleep

Alzheimer’s might rush metabolic process’s connection to sleep

CHICAGO — Wide swings in blood sugar can mess with sleep. Food’s relationship with sleep gets even more muddled when signs of Alzheimer’s disease are present, a study of mice suggests. The results, presented in a news briefing October 20 at the annual meeting of the Society for Neuroscience, show that Alzheimer’s disease is not…
Organoids deal hints to how brains are made in human beings and chimpanzees

Organoids deal hints to how brains are made in human beings...

Brainlike blobs made from chimpanzee cells mature faster than those grown from human cells. That finding, described October 16 in Nature along with other clues to human brain development, is one of the latest insights from studies of cerebral organoids — three-dimensional clumps of cells that can mimic aspects of early brain growth (SN: 2/20/18).…
Dueling brain waves throughout sleep might choose whether rats keep in mind or forget

Dueling brain waves throughout sleep might choose whether rats keep in...

A sleeping rat may look peaceful. But inside its furry, still head, a war is raging. Two types of brain waves battle over whether the rat will remember new information, or forget it, researchers report October 3 in Cell. Details of this previously hidden clash may ultimately help explain how some memories get etched into…
Maryam Shanechi develops makers to check out minds

Maryam Shanechi develops makers to check out minds

Mind reading may sound like a sci-fi dream, but it’s Maryam Shanechi’s day job. This neural engineer doesn’t need mind melds or magic spells to tap into brain activity. Rather, Shanechi, 38, develops computer algorithms that translate electrical blips emitted by brain cells into machine commands. Shanechi has designed and tested systems that harness neural…
Interaction with locked-in clients in concern after misbehavior finding

Interaction with locked-in clients in concern after misbehavior finding

Enlarge / A female study participant allegedly responds to a question. Germany’s main research-funding organization, DFG, has determined that a high-profile neuroscientist committed scientific misconduct in his DFG-funded work. That work concluded it is possible to interpret yes-or-no answers from the brain waves of fully paralyzed patients with “locked-in syndrome” due to amyotrophic lateral sclerosis…
Rat brains offer a lot more proof our brains run near tipping point

Rat brains offer a lot more proof our brains run near...

Enlarge / A real human brain suspended in liquid within a human silhouette carved into acrylic, on display at the Bristol Science Centre in England. New research finds more evidence that the brain operates near a critical point. Ben Birchall/PA Images/Getty Images The human brain doesn't seem like it would have much in common with…

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