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functional magnetic resonance imaging

Five thoughts to think about when thinking about the speed of thought

September 21, 2021 by The Conversation

As inquis­i­tive beings, we are con­stant­ly ques­tion­ing and quan­ti­fy­ing the speed of var­i­ous things. With a fair degree of accu­ra­cy, sci­en­tists have quan­ti­fied the speed of light, the speed of sound, the speed at which the earth revolves around the sun, the speed at which hum­ming­birds beat their wings, the aver­age speed of con­ti­nen­tal drift….

These val­ues are all well-char­ac­ter­ized. But what about the speed of thought? It’s a chal­leng­ing ques­tion that’s not eas­i­ly answer­able – but we can give it a shot. [Read more…] about Five thoughts to think about when think­ing about the speed of thought

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Filed Under: Brain/ Mental Health, Education & Lifelong Learning Tagged With: cognitive, electroencephalography, functional magnetic resonance imaging, movement, myelination, Neurons, perception, reaction-time, speed of thought, thinking, thoughts

Flexibility is good except when it isn’t: Study finds how scientists can reach different conclusions analyzing the same brain scans

August 4, 2020 by SharpBrains

Neu­roimag­ing: Many Ana­lysts, Dif­fer­ing Results (Dana Foundation):

For decades, both the research and med­ical com­mu­ni­ties have relied on neu­roimag­ing tools like func­tion­al mag­net­ic res­o­nance imag­ing (fMRI) to give them a win­dow into the liv­ing human brain. Such scans have pro­vid­ed unprece­dent­ed insights into the brain’s struc­ture and func­tion – and the field, as a whole, has used this tech­nique to bet­ter under­stand how the brain gives rise to thoughts, emo­tions, and actions. But as neu­roimag­ing tech­nol­o­gy has advanced, so have the dif­fer­ent analy­sis tools and the num­ber of ways one can eval­u­ate the result­ing data. Now, the results of unique research project, the Neu­roimag­ing Analy­sis, Repli­ca­tion, and Pre­dic­tion Study (NARPS), sug­gest that dif­fer­ent analy­ses can lead to strik­ing­ly dif­fer­ent results from the same data set.

[Read more…] about Flex­i­bil­i­ty is good except when it isn’t: Study finds how sci­en­tists can reach dif­fer­ent con­clu­sions ana­lyz­ing the same brain scans

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Filed Under: Brain/ Mental Health, Technology & Innovation Tagged With: brain scans, Brain-Imaging, cognitive-neuroscientist, flexibility, fMRI, functional magnetic resonance imaging, Imaging, Imaging Techniques, NARPS, neuroimaging, scientific method

Machine-learning study finds EEG brain signatures that predict response to antidepressant treatments

February 18, 2020 by SharpBrains

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Brain-wave pat­tern can iden­ti­fy peo­ple like­ly to respond to anti­de­pres­sant, study finds (Stan­ford Med­i­cine press release):

“A new method of inter­pret­ing brain activ­i­ty could poten­tial­ly be used in clin­ics to help deter­mine the best treat­ment options for depres­sion, accord­ing to a study led by researchers at the Stan­ford School of Medicine.

Stan­ford researchers and their col­lab­o­ra­tors used elec­troen­cephalog­ra­phy, a tool for mon­i­tor­ing elec­tri­cal activ­i­ty in the brain, and an algo­rithm to iden­ti­fy a brain-wave sig­na­ture in [Read more…] about Machine-learn­ing study finds EEG brain sig­na­tures that pre­dict response to anti­de­pres­sant treatments

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Filed Under: Brain/ Mental Health, Technology & Innovation Tagged With: algorithm, Amit Etkin, antidepressant, antidepressants, brain, brain-activity, brain-wave signature, depression, depression-treatment, EEG, electrical activity, electroencephalography, fMRI, functional magnetic resonance imaging, neurobiological, sertraline, Stanford, treatment, Zoloft

Neuroimaging study finds extensive brain rewiring–in just six months–among illiterate adults learning to read and write

June 8, 2017 by SharpBrains

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Learn­ing to read and write rewires adult brain in six months (New Scientist):

“Learn­ing to read can have pro­found effects on the wiring of the adult brain – even in regions that aren’t usu­al­ly asso­ci­at­ed with read­ing and writing.

That’s what Michael Skei­de of the Max Planck Insti­tute for Human Cog­ni­tive and Brain Sci­ences in Leipzig, Ger­many, and his col­leagues found when they taught a group of illit­er­ate adults in rur­al India to read and write [Read more…] about Neu­roimag­ing study finds exten­sive brain rewiring–in just six months–among illit­er­ate adults learn­ing to read and write

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Filed Under: Education & Lifelong Learning Tagged With: adult-brain, brain regions, Brain-Plasticity, fMRI, functional magnetic resonance imaging, illiterate, India, literacy, neurobiological, neuroplastic changes, neuroplasticity, reading, rewire-brain

Study: Harnessing fMRI neurofeedback to enhance attention and cognitive potential

February 11, 2015 by SharpBrains

fMRI_neurofeedback

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Real-time brain feed­back reduces atten­tion laps­es (News at Princeton):

“In an arti­cle pub­lished online Mon­day by the jour­nal Nature Neu­ro­science, researchers at Prince­ton Uni­ver­si­ty describe a study that shows train­ing peo­ple using real-time feed­back from their own brain activ­i­ty can reduce the fre­quen­cy of atten­tion laps­es and improve their abil­i­ty to sus­tain atten­tion. [Read more…] about Study: Har­ness­ing fMRI neu­ro­feed­back to enhance atten­tion and cog­ni­tive potential

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Filed Under: Technology & Innovation Tagged With: attention deficit hyperactivity disorder, brain-activity, cognitive potential, depression, fMRI, functional magnetic resonance imaging, mental processes, nature neuroscience, neural signals, Neurofeedback, neuroimaging, neuroscience, rtfMRI

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