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Brain Imaging and Neuroscience: The Good, The Bad, & The Ugly
Covering topics and controversies in Cognitive Neuroscience and Brain Imaging
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Distinct neural mechanisms of distractor suppression in the frontal and parietal lobe

The posterior parietal cortex and the prefrontal cortex are associated with eye movements and visual attention, but their specific contributions are poorly understood. We compared the dorsolateral prefrontal cortex (dlPFC) and the lateral intraparietal area (LIP) in monkeys using a memory saccade task in which a salient distractor flashed at a variable timing and location during the memory delay. We found that the two areas had similar responses to target selection, but made distinct contributions to distractor suppression. Distractor responses were more strongly suppressed and more closely correlated with performance in the dlPFC relative to LIP. Moreover, reversible inactivation of the dlPFC produced much larger increases in distractibility than inactivation of LIP. These findings suggest that LIP and dlPFC mediate different aspects of selective attention. Although both areas can contribute to the perceptual selection of salient information, the dlPFC has a decisive influence on whether and how attended stimulus is linked with actions.

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The Where of What: How Brains Represent Thousands of Objects – Phenomena: Not Exactly Rocket Science

The Where of What: How Brains Represent Thousands of Objects – Phenomena: Not Exactly Rocket Science | Brain Imaging and Neuroscience: The Good, The Bad, & The Ugly | Scoop.it
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Research explores how children reason, think about others

Research explores how children reason, think about others | Brain Imaging and Neuroscience: The Good, The Bad, & The Ugly | Scoop.it
Two new studies explore the development of reasoning and perspective-taking in children.
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Advanced brain investigations can become better and cheaper

Advanced brain investigations can become better and cheaper | Brain Imaging and Neuroscience: The Good, The Bad, & The Ugly | Scoop.it
An important method for brain research and diagnosis is magnetoencephalography (MEG). But the MEG systems are very expensive.
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‘Neurolaw’ changes the landscape of criminal responsibility — or does it? (Part 1 of 3)

‘Neurolaw’ changes the landscape of criminal responsibility — or does it? (Part 1 of 3) | Brain Imaging and Neuroscience: The Good, The Bad, & The Ugly | Scoop.it
One early Saturday morning in May 1987, Kenneth Parks arose from his bed and went outside to his car. He proceeded to drive the car more than 20 kilometres from Pickering, east of Toronto, to Scarborough, where his mother- and father-in-law lived.
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Mirror Neurons: The Most Hyped Concept in Neuroscience? | Gavagai

Mirror Neurons: The Most Hyped Concept in Neuroscience? | Gavagai | Brain Imaging and Neuroscience: The Good, The Bad, & The Ugly | Scoop.it
Mirror neurons are fascinating but they aren’t the answer to what makes us human. (Mirror Neurons: The Most Hyped Concept in Neuroscience?
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Right now... among others!

 

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New understanding of cellular activity can lead to future strategies for dealing with neurodegenerative diseases

New understanding of cellular activity can lead to future strategies for dealing with neurodegenerative diseases | Brain Imaging and Neuroscience: The Good, The Bad, & The Ugly | Scoop.it
A new understanding of what takes place on the cellular level during the development of neurodegenerative diseases, such as Parkinson’s, Alzheimer’s, ALS and Huntington’s diseases, offers promise towards possible new strategies for combating such...
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Study Shows Networking Properties Between Brains When Guitarists Play Together

Study Shows Networking Properties Between Brains When Guitarists Play Together | Brain Imaging and Neuroscience: The Good, The Bad, & The Ugly | Scoop.it
Researchers from the Max Planck Institute for Human Development in Berlin have shown that synchronization emerges between brains when making music together, and even when musicians play different...
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First measurements made of key brain links

First measurements made of key brain links | Brain Imaging and Neuroscience: The Good, The Bad, & The Ugly | Scoop.it
Until now, brain scientists have been almost completely in the dark about how most of the nonspecific thalamus interacts with the prefrontal cortex, a relationship believed to be key in such fundamental functions as maintaining consciousness and...
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Neuroscience: Under Attack

Neuroscience: Under Attack | Brain Imaging and Neuroscience: The Good, The Bad, & The Ugly | Scoop.it
Growing ranks of skeptics and critics slam new “brain porn.”...
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Brain White Matter Structure May Predict Chronic Pain Vulnerability | Pain Research Forum

Brain White Matter Structure May Predict Chronic Pain Vulnerability | Pain Research Forum | Brain Imaging and Neuroscience: The Good, The Bad, & The Ugly | Scoop.it

Every year, millions of people suffer from acute back pain. For some people, the pain persists for weeks (subacute pain) and then resolves, while others go on to develop long-term, debilitating chronic pain. Who will make that transition and how it happens remain mysterious. Now, using brain imaging, A. Vania Apkarian and his colleagues at Northwestern University, Chicago, US, have identified structural differences in the brain’s white matter—the bundles of axons that carry communications between neurons throughout the brain—in people whose pain persisted compared to those who recovered.

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Remixed brain waves reveal soundtrack of the human brain

Remixed brain waves reveal soundtrack of the human brain | Brain Imaging and Neuroscience: The Good, The Bad, & The Ugly | Scoop.it
Scientists have combined and translated two kinds of brain wave recordings into music, transforming one recording (EEG) to create the pitch and duration of a note, and the other (fMRI) to control the intensity of the music.
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Remixed brain waves reveal soundtrack of the human brain

Remixed brain waves reveal soundtrack of the human brain | Brain Imaging and Neuroscience: The Good, The Bad, & The Ugly | Scoop.it
Scientists have combined and translated two kinds of brain wave recordings into music, transforming one recording (EEG) to create the pitch and duration of a note, and the other (fMRI) to control the intensity of the music.
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New MRI method may help diagnose dementia

New MRI method may help diagnose dementia | Brain Imaging and Neuroscience: The Good, The Bad, & The Ugly | Scoop.it
A new way to use MRI scans may help determine whether dementia is Alzheimer’s disease or another type of dementia, according to new research.
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ScienceDirect.com - Brain and Cognition - Pure left neglect for Arabic numerals

ScienceDirect.com - Brain and Cognition - Pure left neglect for Arabic numerals | Brain Imaging and Neuroscience: The Good, The Bad, & The Ugly | Scoop.it
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Key gene for brain development

Key gene for brain development | Brain Imaging and Neuroscience: The Good, The Bad, & The Ugly | Scoop.it
Neurobiologists have discovered one of the key genes required to make a brain. Mutations in this gene, called TUBB5, cause neurodevelopmental disease in children.
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Neuroscience offers a glimpse into the mind — and our future (Part 3 of 3) - Vancouver Sun

Neuroscience offers a glimpse into the mind — and our future (Part 3 of 3) - Vancouver Sun | Brain Imaging and Neuroscience: The Good, The Bad, & The Ugly | Scoop.it
Neuroscience offers a glimpse into the mind — and our future (Part 3 of 3)Vancouver SunLast in a 3-part series. Hassan Rasouli recently accomplished a remarkable feat: He lifted his thumb in a way that suggests he was making a thumbs-up gesture.
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Neuroscience offers a glimpse into the mind - and our future - Vancouver Sun

Neuroscience offers a glimpse into the mind - and our future - Vancouver Sun | Brain Imaging and Neuroscience: The Good, The Bad, & The Ugly | Scoop.it
Neuroscience offers a glimpse into the mind - and our futureVancouver SunHassan Rasouli recently accomplished a remarkable feat: He lifted his thumb in a way that suggests he was making a thumbs-up gesture.
Donald J Bolger's insight:

The battle over the "persistent vegetative state" is indicative of how we as a culture deal with death.  While I do not doubt that some of these individuals may have some consciousness and responsiveness, particularly in brain activity.  It is impossible to say whether this amounts to 'being alive' as we think of it. 

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PET, MRI, Cerebrospinal Analysis Best for Alzheimer's Test - Diagnostic Imaging

PET, MRI, Cerebrospinal Analysis Best for Alzheimer's TestDiagnostic ImagingFluorodeoxyglucose-PET (FDG-PET), along with MRI and cerebrospinal analysis, significantly increases the accuracy of predicting Alzheimer's disease progression from mild cognitive...
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Brain study shows why some people are more in tune with what they want

Brain study shows why some people are more in tune with what they want | Brain Imaging and Neuroscience: The Good, The Bad, & The Ugly | Scoop.it
Researchers have discovered how the brain assesses confidence in its decisions. The findings explain why some people have better insight into their choices than others.
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New antidepressant acts very rapidly and is long lasting

A first-of-its-kind antidepressant drug now tested on adults who have failed other antidepressant therapies has been shown to alleviate symptoms within hours, have good safety and produce positive effects that last for about seven days from a...
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Autism symptoms reversed in mice

Autism symptoms reversed in mice | Brain Imaging and Neuroscience: The Good, The Bad, & The Ugly | Scoop.it
Neural 'hyperconnections' caused by runaway protein production can be undone.

As diagnoses of autism spectrum disorder rise, the need for effective therapies has increased in urgency. Today, a paper in Nature describes two ways of reversing autism-like symptoms in a new mouse model of the condition. (...) - by Dan Jones, Nature news, 21 November 2012

 

Source :  Gkogkas, C. G. et al. Nature 


Via Julien Hering, PhD
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New Method To Study Widespread Networks Of Neurons Responsible For Our Memory

New Method To Study Widespread Networks Of Neurons Responsible For Our Memory | Brain Imaging and Neuroscience: The Good, The Bad, & The Ugly | Scoop.it
While in deep dreamless sleep, our hippocampus sends messages to our cortex and changes its plasticity, possibly transferring recently acquired knowledge to long-term memory.
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Into the magnetic resonance scanner with a cuddly toy

Clinicians have been able to show on the basis of a large sample, that it is possible to examine children's heads in the MRI scanner without general anesthesia or other medical sedation.
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Gene nearly triples risk of Alzheimer's, international research team finds

Gene nearly triples risk of Alzheimer's, international research team finds | Brain Imaging and Neuroscience: The Good, The Bad, & The Ugly | Scoop.it
A gene so powerful it nearly triples the risk of Alzheimer's disease has been discovered by an international team of researchers. It is the most potent genetic risk factor for Alzheimer's identified in the past 20 years.
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