Experiments involved magnetoencephalography. Medical search. Frequent questions

They used functional magnetic resonance imaging (fMRI) and Magnetoencephalography (MEG) to measure how the subjects' brains lit up in certain areas as they read. (zdnet.com)
The experiments were unnatural, usually involving only single words or phrases, but the slow pace of fMRI -- one scan every two seconds -- made other approaches seem unfeasible. (medicalnewstoday.com)
Through invasive experiments that turn living, sentient individuals into recording devices, M1 and M2, aged 8 and 7, have undergone multiple brain surgeries to insert cranial implants and an attached headpost, followed by surgeries to implant electrodes for fMRI guided electrophysiology studies. (caareusa.org)
fNCI uses the same technology of an fMRI, but the imaging process involves having patients perform standardized tasks while in the MRI machine. (bleistiftreviews.de)
He has applied integrated magnetoencephalography (MEG), electroencephalography (EEG), and functional magnetic resonance imaging (fMRI) to studies of cortical processing of visual information, including contrast patterns and visual motion. (harvard.edu)
His research involves development of techniques for the analysis of multimodal biomedical imaging data, in particular, for the use of fMRI data to inform the source estimation (inverse problem) of MEG and EEG. (harvard.edu)
His work at BYU included leading the efforts to conduct the first simultaneous EEG/fMRI experiment at BYU. (harvard.edu)

In this dissertation I present a novel approach for integrating 'bottom-up' (neural network modeling) and 'top-down' (experiment) methods to study the dynamics of cortical circuits correlated to shortterm memory (STM) processing that underlie the task-specific modulation of human auditory perception during performance of the delayed-match-to-sample (DMS) task. (umd.edu)
The experimental approach measures high-density magnetoencephalography (MEG) signals from human participants to investigate the modulation of human auditory evoked responses (AER) induced by the overt processing of auditory STM during task performance. (umd.edu)
The computational approach uses a large-scale neural network model based on the electrophysiological knowledge of the involved brain regions to simulate system-level neural dynamics related to auditory object processing and performance of the corresponding tasks. (umd.edu)
Here, using combined magnetoencephalography (MEG) and anatomical information obtained from MRI, we contrasted cortical activity when observers attended to different auditory features given the same acoustic mixture of two simultaneous spoken digits. (frontiersin.org)
In a study involving shifting of attention between auditory and visual stimuli, Shomstein and Yantis (2006) observed distributed activation including bilateral parietal lobule [and superior temporal sulcus (STS)], consistent with the idea that audition and vision share a common supramodal attention network. (frontiersin.org)
We recorded simultaneous magnetoencephalography and electrocardiography in healthy subjects in the resting state and while performing a discrimination task on scale-free dynamical auditory stimuli that followed different scale-free statistics. (eneuro.org)

To clarify the underlying mechanisms for this phenomenon, neuroimaging methods, such as functional magnetic resonance imaging, and neurophysiological methods, such as magnetoencephalography and electroencephalography, have been used. (frontiersin.org)
For studying such neural mechanisms, magnetoencephalography (MEG) and electroencephalography (EEG) are two important techniques, as they non-invasively detect neural activities with a high temporal resolution. (cmu.edu)

We conducted an online magnetoencephalography (MEG) study to examine the spatio-temporal nature of taxonomic and thematic relations. (nyu.edu)
Besides the methodological contribution, we also applied our methods in a real MEG/EEG experiment, studying the spatio-temporal neural dynamics in the visual cortex. (cmu.edu)

They used a novel brain imaging technique that combines magnetoencephalography (MEG), structural MRI, and polysomnography-including electroencephalogram (EEG) signals, eye and muscle movements, and heart rate. (the-scientist.com)
Notably, by estimating the source of the magnetoencephalography (MEG) signals, we identified isolated brain networks activated at the imagery-rate frequency. (elifesciences.org)
This involves extracting several elements that describe the complexity of the signals and evaluates them in terms of robustness, efficacy, and speed of computation. (luminous-project.eu)

Working with 4 human volunteers , researchers at Carnegie Mellon University used an advanced brain imaging tool called magnetoencephalography (MEG) and computational methods to determine how the brain rapidly distinguishes faces. (caareusa.org)

The thesis aims on the one hand to characterize the cortical network involved in oculomotor control during reading, and on the other hand to determine the temporal dynamics of activation of these different cortical areas. (ilcb.fr)

In this review, we attempted to elucidate the neural mechanisms involved in the effects of meditation on human pain perception based on published findings with neuroimaging and neurophysiology. (frontiersin.org)
and Grant (2014) recently published a review on the brain mechanisms involved in pain relief during meditation. (frontiersin.org)
In this experiment, we have discovered that reduplicated prefixes, infixes, and circumfixes all trigger the same early, form based morphological decomposition mechanisms previously only observed for prefixes and suffixes in languages like English and Greek. (qmul.ac.uk)

With access to state-of-the-art core facilities (shared, supervised laboratories that help all NIMH labs access highly specialized experimental capacities) for studies in neuroimaging, electro- and magnetoencephalography, advanced microscopy, rodent and non-human primate behavior studies, and clinical services, our trainees receive hands-on training in a broad variety of neuroscience techniques. (nih.gov)
However, chronometric TMS produces nonspecific effects that may impact behavior, and furthermore, the time-course of any given process is a product of both the involved processing stages along with individual variation in the duration of each stage. (mpi.nl)
Cognitive psychological experiments quantify brain activity to comprehend intelligent behavior, recording the real-time responses of participants. (emeritus.org)

Neuronal information processing is shaped by multiscale oscillatory activity ( Buzsáki and Draguhn, 2004 ), in which subjective experience in consciousness involves ongoing neural dynamics on the time scale of hundreds of milliseconds ( Dehaene and Changeux, 2011 ). (elifesciences.org)

Magnetoencephalography ( MEG ) is a functional neuroimaging technique for mapping brain activity by recording magnetic fields produced by electrical currents occurring naturally in the brain , using very sensitive magnetometers . (wikipedia.org)

In a separate experiment we collected relatedness ratings of the word pairs from participants. (nyu.edu)
Since then, "Ethical Guidelines for Medical and Health Research Involving Human Participants" (2014, the Ministry of Education, Culture, Sports, Science and Technology [MEXT] and the Ministry of Health, Labour and Welfare [MHLW], partially revised on February 28, 2017) have been developed, which combine "Ethical Guidelines Concerning Epidemiological Research" (Notification No. 1 from MEXT and MHLW in 2007) and "Ethical Guidelines Concerning Clinical Research" (Notification No. 415 from MHLW in 2008). (jnss.org)

Experiments on sleep durations and sleep deprivation have revealed that the frontal lobe is more sensitive to these impacts, with abnormal activation occurring in the frontal lobe (such as in the DLPFC and MPFC) during cognitive-related tasks [ 10 ]. (biomedcentral.com)

During each experiment, the researchers allowed the monkey to reach for pieces of food, and recorded from single neurons in the monkey's brain, thus measuring the neuron's response to certain movements. (wikipedia.org)
Further experiments confirmed that about 10% of neurons in the monkey inferior frontal and inferior parietal cortex have "mirror" properties and give similar responses to performed hand actions and observed actions. (wikipedia.org)
In this experiment, Giacomo Rizzolatti and his colleagues at the University of Parma in Italy were studying how motor neurons trigger hand movements in monkeys. (protomag.com)
Using a technique called magnetoencephalography or MEG, that captures electrical impulses from firing neurons, Dr. Conway was able to organize colors based on how our brains react to them. (nih.gov)

The ligand specificity of binding was assessed with unlabelled vasopressin or oxytocin in excess, as well as in competition experiments using synthetic structural analogues. (shengsci.com)

The other was a modern brain-imaging technique known as magnetoencephalography (MEG). (neurosciencenews.com)
There is a related technique, Magnetoencephalography (or MEG) which does have better localising ability, but is limited to a few specialist centres. (iscast.org)

In a second experiment with a different group of volunteers, the researchers played regular beeping sounds throughout the night, with high-pitched "deviant" beeps thrown in at odd intervals. (the-scientist.com)
These results can help researchers empirically choose between MEG and EEG when planning their experiments with limited budgets. (cmu.edu)
Researchers now think that watching the pitcher for your favorite baseball team, for instance, excites the same neural circuit that's involved when you wind up for a toss during the company softball game. (protomag.com)

It is finally suggested that the formation of mental symptoms is a complex process involving both neurocognitive and semantic factors, which raises doubts about the possibility of complete translations, without residuals. (balkanmedicaljournal.org)

This groundbreaking study is the first ever to investigate how the morphological processes of Reduplication, Infixation and Circumfixation are parsed using Magnetoencephalography to measure brain responses. (qmul.ac.uk)

Further, experiments have been done to investigate where in the brain, people 'do' religion, both in terms of religious beliefs and religious behaviours. (iscast.org)
The expression of the immediate-early gene c-fos was used as a marker of neuronal activity to investigate the cervical spinal interneuron populations involved in the corticomotoneuronal pathway. (shengsci.com)

In a laboratory at Rockefeller University in New York, two monkeys, known only as M1 and M2, spend their lives subjected to experiments designed to map the brain cells involved in facial recognition. (caareusa.org)

Finally, we compared the empirical sensitivity between MEG and EEG in this experiment, in detecting dependence between neural responses and visual features. (cmu.edu)

However, the use of (1) fixed scoring windows of 30 s and (2) only a few EEG electrodes means that PSG involves considerable averaging of brain activity in both time and space 4 -arguably leading to an incomplete representation of brain activity. (nature.com)

Please join CAARE in asking Rockefeller University to end these outdated and inhumane monkey experiments. (caareusa.org)
Rockefeller U must end these outdated and vile monkey experiments and conduct brain research that utilizes modern, human relevant methods. (caareusa.org)
But in Rizzolatti's experiment, it appeared that the same neuron fired when the monkey grabbed a peanut and when he watched the researcher make a similar movement. (protomag.com)

an area involved in multimodal integration ( Robertson, 2003 ). (jneurosci.org)

A complementary study by Wehbe and Mitchell, presented earlier this fall at the Conference on Empirical Methods in Natural Language Processing, used magnetoencephalography (MEG) to record brain activity in subjects reading Harry Potter. (medicalnewstoday.com)

Human cognition involves dynamic neural activities in distributed brain areas. (cmu.edu)
Rockefeller University is defending these harrowing experiments with the usual claims that they may help human patients with psychiatric or neurological disorders. (caareusa.org)

Langheim FJ, Leuthold AC, Georgopoulos AP (2006) Synchronous dynamic brain networks revealed by magnetoencephalography. (springer.com)
In particular, the evidence for a particular region within the brain responsible for religious experience (a so-called 'God spot') is found to be virtually non-existent and many of the brain networks involved in manifestations of religious practice or belief are shared by other aspects of social interaction and belief formation. (iscast.org)

Subjects explored by eyes small city maps exemplifying five different street network types in order to locate a hypothetical City Hall, while neural activity was recorded continuously by 248 magnetoencephalography (MEG) sensors at high temporal resolution. (springer.com)

I liked the overall concept," said Jyrki Ahveninen , a professor of radiology at Harvard Medical School and Massachusetts General Hospital who was also not involved in the study. (the-scientist.com)

one hemisphere of the brain was in a more vigilant state during the first night of sleep," said Stufflebeam, who was not involved in the research. (the-scientist.com)
These postdocs are the beating heart of NIMH science, performing much of the critical experiments that shape the future of mental illness research under the close tutelage of senior scientists and lab heads. (nih.gov)
The new guidelines specify the rules that should be followed by all parties involved in medical research conducted in humans. (jnss.org)
In it, we try to connect the theory of Distributed Morphology with the available neurolinguistics literature (largely focused on the MEG research we and our collaborators have been involved in). (qmul.ac.uk)

The team did a final experiment in which a new group of volunteers heard sounds while they slept, except this time, they were instructed to tap their fingers lightly if they were awoken by the sound. (the-scientist.com)
But these have always been tightly controlled experiments, with only one variable analyzed at a time. (medicalnewstoday.com)
We found posterior temporal areas to be causally involved in picture naming in earlier time-windows, whereas all 3 regions appear to be involved in the later time-windows. (mpi.nl)
There was subtle evidence of this also in the neural decoding using Magnetoencephalography: for one time-window (of 80ms) coding of critical information declined more during monitoring versus active conditions. (elifesciences.org)
At the time of the experiment, in 1992, neuroscientists thought that when each type of neuron fired, it was to initiate a single function. (protomag.com)

With the current technological breakthroughs, we can now measure the foetal brain activity using foetal magnetoencephalography (fMEG), a tool that in a non-invasive way captures the foetal brain activity in the last trimester of pregnancy and in neonates shortly after birth. (luminous-project.eu)

Overall, processing of the spatial parameters seems to predominantly involve right frontal and prefrontal areas, but not for all street network layouts. (springer.com)
These results are in line with findings from a series of previous studies showing that frontal and prefrontal areas are involved in the processing of spatial information and decision making. (springer.com)
However, non-spatial attention engages additional areas beyond those involved in spatial attention. (frontiersin.org)

The experiments are conducted while the monkeys are awake and presented with images that test them on face recognition. (caareusa.org)

The experiment involved triggering a response in the nervous system with unexpected electric shocks that emulate the sudden and/or stressful stimuli to which we are exposed daily. (neurosciencenews.com)
Therefore, techniques involving the peripheral nervous system and muscles will be excluded from this overview. (medlink.com)

Magnetoencephalography is a technology that measures electrical transmission within the brain based on tiny (i.e. (medicalautomation.org)

Hence, we could demonstrate that pianists, when listening to well-trained piano music, exhibit involuntary motor activity involving the contralateral primary motor cortex (M1). (mit.edu)

We designed a magnetoencephalography (MEG) experiment to compare the motor activation in pianists and nonpianists while listening to piano pieces. (mit.edu)

Two examples show how the approach can be applied to M/EEG experiments. (edu.au)

A comparison across experiments showed that the overlap effects were larger in the more difficult object relative than in subject relative sentences. (mpi.nl)

In the Luminous experiment exploring this, the features extracted were derived from two well-established theories on brain complexity: the fractal theory and the compression theory. (luminous-project.eu)

Moreover, they provide a nuanced view of thematic relations as involving taxonomic knowledge. (nyu.edu)

Send your polite letter today to Rockefeller University to ask that they end these horrible, unethical experiments on monkeys. (caareusa.org)

Anatomy16

Diseases7

Analytical, Diagnostic and Therapeutic Techniques and Equipment20

Psychiatry and Psychology27

Phenomena and Processes23

Anthropology, Education, Sociology and Social Phenomena1

Humanities1

Information Science9

Health Care3

FMRI7

Auditory6

Electroencephalography2

Spatio-temporal2

Signals3

Computational1

Cortical1

Mechanisms3

Behavior3

Neural dynamics1

Functional1

Participants2

Cognitive1

Neurons4

Structural1

Technique2

Researchers3

Semantic1

Processes1

Investigate2

Facial1

Responses1

Electrodes1

Monkey3

Multimodal1

Methods1

Human2

Brain networks2

Subjects1

Study1

Research4

Time5

Measure1

Spatial3

Awake1

Nervous system2

Electrical1

Activity1

Activation1

Approach1

Comparison1

Features1

Knowledge1

University1