Macaque monkey brains. Medical search. Frequent questions

The findings - which could apply to other African and Asian primates known as Old World monkeys - suggest that human speech stems mainly from the unique evolution and construction of our brains, and is not linked to vocalization-related anatomical differences between humans and primates, the researchers reported Dec. 9 in the journal Science Advances. (princeton.edu)
The findings suggest that human speech stems mainly from the unique evolution and construction of our brains, and is not linked to vocalization-related anatomical differences between humans and primates. (princeton.edu)
Previous examinations of primate vocal anatomy conducted on cadavers had concluded that monkeys and apes have a very limited range of sounds they could produce relative to humans. (princeton.edu)
The existence of a human-like vocal tract in an old species such as the macaque suggests that more recently evolved species such as chimpanzees - which are closely related to humans - very likely have one as well, Santos said. (princeton.edu)
And if that is true, it could mean that studying the chimpanzee brain could help reveal the neural networks that allow humans to speak while their evolutionary cousins cannot. (princeton.edu)
If a species as old as a macaque has a vocal tract capable of speech, then we really need to find the reason that this didn't translate for later primates into the kind of speech sounds that humans produce," she said. (princeton.edu)
Because this work shows that macaques express nearly the same range of physical movements as humans during vocalization, primates could be used as models for understanding early human speech development and human speech evolution, Ghazanfar said. (princeton.edu)
A neural network architecture models how humans learn and consciously perform musical lyrics and melodies with variable rhythms and beats, using brain design principles and mechanisms that evolved earlier than human musical capabilities, and that have explained and predicted many kinds of psychological and neurobiological data. (frontiersin.org)
This article proposes brain design principles, mechanisms, and architectures that enable humans to learn and consciously perform lyrics and melodies with variable rhythms and beats. (frontiersin.org)
The current article complements these contributions by developing a neural model of the brain mechanisms that regulate how humans consciously perceive, learn, and perform music. (frontiersin.org)
That said, all four monkeys appeared susceptible to COVID-19, the disease caused by SARS-CoV-2, developed symptoms that were similar to humans and generated specific antibodies in response to the virus. (livescience.com)
While the findings seem reassuring in terms of the monkeys doing fine, I don't think we can generalize from it with certainty for humans, given the small sample size," Gidengil said. (livescience.com)
Having heard the anecdotal reports of so-called reinfection in humans, Chuan's team aimed to see if rhesus macaques could become infected with COVID-19 twice in a row. (livescience.com)
Macaque monkeys and humans sample temporal regularities in the acoustic environment. (mpg.de)
Functional imaging of audio–visual selective attention in monkeys and humans: how do lapses in monkey performance affect cross-species correspondences? (crossref.org)
The longitudinal proportions of this region are a major source of anatomical variation among adult humans and, being much larger in Homo sapiens , is the main characteristic differentiating human midsagittal brain morphology from that of our closest living primate relative, the chimpanzee. (karger.com)
This result further supports the hypothesis that precuneus expansion in modern humans is not merely a consequence of increasing brain size or of allometric scaling, but rather represents a species-specific morphological change in our lineage. (karger.com)
Changes in lipidome composition during brain development in humans, chimpanzees, and macaque monkeys. (mpg.de)
The researchers of this study tested two bonnet macaque monkeys (Macaca radiata) when they were awake and 15 humans to measure their brain activity using an electroencephalogram (EEG). (deccanherald.com)
Data and statistical analysis of the study revealed that two types of gamma waves were generated in the primary visual cortex - part of the brain that receives visual input from the retina - in both monkeys and humans. (deccanherald.com)
These macaques were moved from a spacious countryside facility to small indoor enclosures and served fatty and sugary food for several weeks, to imitate the environment of many contemporary humans. (science20.com)
This kind of parallel processing in our neural wiring might explain why humans are capable of highly sophisticated language that allows us to share information, express and perceive emotion, and tell memorable stories," said Strick, who also is scientific director of Pitt's Brain Institute. (sciencedaily.com)
Vision is the functional aspect of the brain that we understand the best, in humans and other animals," Tenenbaum says. (mit.edu)
In this review article, we discuss the potential benefits of IF on cognitive function and the possible effects on the prevention and progress of brain-related disorders in animals and humans. (mdpi.com)
The clinical course of this infection in monkeys, like that of AIDS in humans, is complicated by various opportunistic infections (7). (cdc.gov)
Mild bronchiolar- monkeys and humans have more complex, non-neoplastic health effects of inhaled par- alveolar hyperplasia, which was much less larger acini than rats. (cdc.gov)

In this sample, precuneus variation is apparently not influenced by phylogenetic or allometric factors, but does vary consistently within species, at least in chimpanzees and macaques. (karger.com)
To prove their point, researchers involved several chimpanzees, macaques, university students, and even professional athletes in a pulling strength competition. (science20.com)

Co-corresponding author Asif Ghazanfar , a Princeton University professor of psychology and the Princeton Neuroscience Institute , said that scientists across many disciplines have long debated if - and to what extent - differences between the human and primate vocal anatomy allow people to speak but not monkeys and apes. (princeton.edu)
Graziano has made contributions in three areas of neuroscience: how neurons in the primate brain encode peripersonal space, how the motor cortex controls complex movement, and the possible neuronal basis of consciousness. (wikipedia.org)
Much of neuroscience explores how the brain processes the sensory information that guides us through our physical environment. (singularityhub.com)
Background: Neuroscience studies with macaque monkeys may require cranial implants to stabilize the head or gain access to the brain for scientific purposes. (awionline.org)
1995 ) Single neurons with both form/color differential responses and saccade-related responses in the nonretinotopic pulvinar of the behaving macaque monkey Visual Neuroscience . (neurotree.org)

In the 1990s, Graziano with Charles Gross described the properties of a set of multisensory neurons in the monkey brain. (wikipedia.org)
In Graziano's interpretation, these multisensory neurons form a specialized brain-wide network that encodes the space near the body, computes a margin of safety, and helps to coordinate movements in relation to nearby objects with an emphasis on withdrawal or blocking movements. (wikipedia.org)
Neurons that either ramp up or dampen overall brain activity also have preferred spots, with their numbers changing between cortical regions and depth. (singularityhub.com)
The cortex is an elaborate six-layered structure packed with different types of neurons and other brain cells. (singularityhub.com)
Our brain-to-body ratio is six times that of other mammals, and the neurons in our cerebral cortex (the brain's outer layer, responsible for cognition) are more densely packed than those of any other creature on Earth. (discovermagazine.com)
There are many different types of neurons in the brain, but until now, there hasn't been a way to classify most of them. (ieee.org)
We often dumb down our most complex organ-the brain-by referring to most of its constituents as simply "neurons. (ieee.org)
We know that different types of neurons exist, and therefore they must have different roles in the brain, otherwise they wouldn't exist. (ieee.org)
The researchers achieved the feat by recording the electrical activity of nearly 2500 neurons implanted in the brains of two macaque monkeys. (ieee.org)
Using a clustering algorithm, they analyzed the shape of the waveforms of the electrical spikes that occur when neurons in the monkeys' brains fire. (ieee.org)
The same classes of neurons are likely present in the human brain, Miller says. (ieee.org)
Another approach to recording from individual neurons for many months uses slowly inserted microwires, inserted individually or in small groups in various locations around the brain. (scholarpedia.org)
A practical consequence of our findings is that we can now reconstruct a face that a monkey is seeing by monitoring the electrical activity of only 205 neurons in the monkey's brain. (newstarget.com)
The research team then inserted electrodes into the brains of two macaque monkeys and performed electrophysiological recordings on face-responsive neurons in the inferior temporal cortex, while simultaneously showing the animals images of random faces. (newstarget.com)
Synchronised electrical pulses from neurons communicating with each other produce these brain waves that ricochet throughout the brain. (deccanherald.com)
Rare Neurons Discovered in Monkey Brains Max Planck scientists discover brain cells in monkeys that may be linked to self-awareness. (neurosciencenews.com)
Previous research has shown that low-intensity ultrasound waves applied to rodent brains from outside the head can stimulate neurons - including deep, compacted neurons - and cause corresponding muscle movements elsewhere in the body. (scitechdaily.com)
Studies in macaque monkeys have demonstrated that 2 adjacent neurons in the visual cortex could join receptive fields up to 5°, which correlates to the maximum deviation of 8 prism diopters of monofixation syndrome. (medscape.com)

Also, when compared to a mouse brain atlas, the new map found several cell types specific to primates huddled together in one layer of the cortex. (singularityhub.com)
If you look at nonhuman primates, it's like they have another set of hands down there," notes Dean Falk, a professor of anthropology at Florida State University and senior scholar at Santa Fe's School for Advanced Research, who specializes in brain evolution. (discovermagazine.com)
In the current shape analysis, we examine precuneus variation in non-human primates through landmark-based models, to evaluate the general pattern of variability in non-human primates, and to test whether precuneus proportions are influenced by allometric effects of brain size. (karger.com)
Now, a new study by researchers at the Indian Institute of Science, Bengaluru, has revealed how visual stimuli that include TV screens and video games can impact a type of brain waves called gamma waves in primates. (deccanherald.com)
In an unprecedented and highly collaborative effort, we have designed, built, and evaluated the first brain-spinal interface in non-human primates to modulate locomotor circuits via brain-controlled epidural electrical stimulation. (europa.eu)
This type of model, known as efficient inverse graphics (EIG), also correlates well with electrical recordings from face-selective regions in the brains of nonhuman primates, suggesting that the primate visual system may be organized in much the same way as the computer model, the researchers say. (mit.edu)
Viral isolates have since been obtained from several species of nonhuman primates including African green monkeys (2), sooty mangabeys (3), pig-tailed macaques (4), and stump-tailed macaques (5). (cdc.gov)

In the macaque, electrophysiological and functional magnetic resonance imaging (fMRI) studies have localized candidate areas that could encode facial movements. (jneurosci.org)

The macaque provides a model visual system for studying neural coding of expression movements, as its superior temporal sulcus (STS) possesses brain areas selective for faces and areas sensitive to visual motion. (jneurosci.org)
We investigated the neural computations which might support this feat, using the macaque superior temporal sulcus (STS) as a model system. (jneurosci.org)
Using high-resolution brain activity scans, captured with a method known as functional magnetic resonance imaging, he recorded how each of the six macaque facial patches, located in a part of the brain called the superior temporal sulcus (STS), responded. (news-medical.net)

The conventional anatomical wisdom is that both species' brains process faces and bodies independently. (news-medical.net)
We selected these two monkey species because of the striking differences in their vocal behavior," Cerkevich explained. (sciencedaily.com)
In rhesus monkeys and other susceptible nonhuman primate species (e.g. pig-tailed macaque, crab-eating macaque), SIV infection leads to a chronic wasting disease syndrome with depletion of CD4 (T4) lymphocytes and lymphadenopathy. (cdc.gov)

Integration of microstructural and functional aspects of human somatosensory areas 3a, 3b, and 1 on the basis of a computerized brain atlas. (mpg.de)
Here, we used functional magnetic resonance imaging acquired at 9.4 T to map the brain areas activated by social interaction observation in awake marmosets. (elifesciences.org)
In Old World macaque monkeys, Sliwa and Freiwald, 2017 recently identified areas in parietal and frontal cortex that were exclusively activated by the observation of social interactions of other macaques using functional magnetic resonance imaging (fMRI). (elifesciences.org)
The authors combined this approach with functional brain imaging to reveal the neural substrates of metamemory for retrospection. (dericbownds.net)
By whole-brain searches via functional magnetic resonance imaging, we discovered a neural correlate of metamemory for temporally remote events in prefrontal area 9 (or 9/46d), along with that for recent events within area 6. (dericbownds.net)

The scientists found that certain spots dedicated to processing faces in the primate brain prefer faces with bodies-evidence they are combining both facial and body information to represent an individual. (news-medical.net)
New artwork created by artificial intelligence does weird things to the primate brain. (sciencenews.org)
The AI's ability to play the primate brain like a fiddle also offers insight into how closely AIs can emulate brain function. (sciencenews.org)

By carefully mapping neural networks in marmoset and macaque monkeys, they determined that multiple areas in the brain's frontal lobe control the muscles of vocalization and could provide a foundation for complex speech. (sciencedaily.com)

Previously, we argued that the precuneus expanded in recent human evolution, based on a combination of paleontological, comparative, and intraspecific evidence from fossil and modern human endocasts as well as from human and chimpanzee brains. (karger.com)
Organization and Evolution of Brain Lipidome Revealed by Large-Scale Analysis of Human, Chimpanzee, Macaque, and Mouse Tissues. (mpg.de)
Indeed, it turned out that unlike the uniformly-paced evolution of the genome, the metabolome of the human brain has evolved four times faster than that of the chimpanzee. (science20.com)

Such differences might reflect differences in brain proportions or differences in cranial architecture. (karger.com)
2021. Protective cranial implant caps for macaques. (awionline.org)

The macaque cerebral cortex is like ours, and this study offers the most complete map of its kind. (singularityhub.com)
We try to understand the computational architecture of cerebral cortex by following the structure and function of a well-known model organism of vision, the Macaque monkey. (helsinki.fi)

Brain Behav Evol (2017) 90 (3): 255-263. (karger.com)

1982 ) Demonstration of lack of dorsal lateral geniculate nucleus input to extrastriate areas MT and visual 2 in the macaque monkey. (neurotree.org)

It features the skeletons of two of her pet rats (one came from the lab of a friend) meticulously arranged underneath a dangling chandelier of glass slides holding cross sections of monkey brains. (wbur.org)
1995 ) Gamma-aminobutyric acid and somatostatin immunoreactivity in the visual cortex of normal and dark-reared rats Brain Research . (neurotree.org)

Here we identified neural representations about how tools are typically manipulated within left anterior temporal cortex, by shifting a searchlight classifier through whole-brain real action fMRI data when participants grasped 3D-printed tools in ways considered typical for use (i.e., by their handle). (nature.com)

Results show that precuneus proportions do not covary with brain size, and that the main difference between monkeys and apes involves a vertical expansion of the frontal and occipital regions in apes. (karger.com)
In addition to M1, both kinds of monkeys had multiple premotor areas in the frontal lobe that send descending command signals to the cricothyroid muscle. (sciencedaily.com)
However, by briefly applying ultrasonic waves to the monkeys' frontal eye fields (FEF), brain regions that control eye movement, the researchers influenced which target the monkey looked at. (scitechdaily.com)

The brain scans revealed that each of the four distinct personalities elicited four distinct activity patterns in the medial prefrontal cortex, an area at the front of the brain known to be involved in decision making. (singularityhub.com)
A specific region in the prefrontal brain was essential for meta mnemonic decision-making. (dericbownds.net)

Neurofilament protein distribution in the macaque monkey dorsolateral premotor cortex. (mpg.de)

Researchers have found that monkeys known as macaques possess the vocal anatomy (left) but not the brain circuitry to produce human speech. (princeton.edu)
The researchers note, however, that while a macaque would be understandable to the human ear, it would not sound precisely like a human. (princeton.edu)
With an array of electrodes placed directly on the brain, researchers were able to decode specific words that people were thinking. (singularityhub.com)
The researchers say the four types of waveforms turned up in the three different brain regions they tested, in both study subjects. (ieee.org)
The researchers were able to recreate the images that the monkeys perceived. (newstarget.com)
Unlike previous studies that have shown a single gamma rhythm in the primate visual cortex, we found that large visual gratings induce two distinct gamma oscillations in both monkey and human electroencephalogram,' say the researchers. (deccanherald.com)
The researchers believe that the study of these waves will provide more profound insights regarding the communication mechanisms that occur inside the brain. (deccanherald.com)
Researchers recently investigated the evolution of metabolites - small molecules like sugars, vitamins, amino acids and neurotransmitters that represent key elements of our physiological functions - and found that metabolite concentrations evolved rapidly over the course of human evolution in two tissues: in the brain and, more surprisingly, in muscle. (science20.com)
The researchers injected a transneuronal tracer made from rabies virus into the cricothyroid muscle of the monkeys' larynxes. (sciencedaily.com)
GPS for the brain: UGA researchers develop new brain map University of Georgia researchers have developed a map of the. (neurosciencenews.com)
Stowers researchers present a new model for how the brain is organized to process odor information. (neurosciencenews.com)
When the researchers targeted the left FEF, the monkeys were more likely to choose the right target, and vice versa. (scitechdaily.com)
That the researchers controlled the monkeys' choices regardless of the reward suggests that this technique could be used to study disorders such as addiction, binge eating, and compulsive behaviors. (scitechdaily.com)

Lysakowski A, Standage GP, Benevento LA. ( 1988 ) An investigation of collateral projections of the dorsal lateral geniculate nucleus and other subcortical structures to cortical areas V1 and V4 in the macaque monkey: a double label retrograde tracer study. (neurotree.org)
Two clinical approaches to treatment have been used: one where brain scientists and engineers have developed cortical implants to record and decode the intended movement for prosthetic control, and one where robotic assisted rehabilitation of the damaged area is driven by coordinated electrochemical stimulation. (europa.eu)
Three rhesus macaque monkey were implanted with (i) a 96-microelectrode Blackrock cortical array in the lower limb area of left MI, (ii) an 8-channel electromyogram (EMG) system into eight right leg muscles spanning four joints of the lower limb and (iii) a 16-electrode epidural electrical spinal cord stimulation (ESCS) array placed over the lumbar spinal cord. (europa.eu)
Columnar cortico-cortical interconections within the visual system of the squirrel and macaque monkey. (bvsalud.org)

The precuneus is a major element of the superior parietal lobule, positioned on the medial side of the hemisphere and reaching the dorsal surface of the brain. (karger.com)
Lysakowski A, Standage GP, Benevento LA. ( 1986 ) Histochemical and architectonic differentiation of zones of pretectal and collicular inputs to the pulvinar and dorsal lateral geniculate nuclei in the macaque. (neurotree.org)

The article proposes how music builds upon brain mechanisms that are used in multiple perceptual, cognitive, and motor processes. (frontiersin.org)
The outermost layer of the brain, the cortex houses many of our treasured cognitive functions: the ability to reason, make decisions, and adapt to ever-changing environments on the fly. (singularityhub.com)
We're trying to understand how the brain works normally so that we can fix it when it's broken," says Earl Miller , a cognitive neuroscientist at MIT, who led the research. (ieee.org)
Although macaque monkeys are widely used to study the neural basis of higher cognitive function, they may not be an ideal nonhuman primate model for studying the neural basis of social cognition as laboratory studies of social behavior are challenging due to their size and aggression toward conspecifics. (elifesciences.org)
A deep transfer learning model for head pose estimation in rhesus macaques during cognitive tasks: Towards a nonrestraint noninvasive 3Rs approach. (awionline.org)
Now, a team led by MIT cognitive scientists has produced a computer model that captures the human visual system's ability to quickly generate a detailed scene description from an image, and offers some insight into how the brain achieves this. (mit.edu)
The importance of diet and the gut-brain axis for brain health and cognitive function is increasingly acknowledged. (mdpi.com)

An international team led by Chinese scientists just built the most complete atlas of the macaque monkey cortex to date. (singularityhub.com)
In recent years, scientists have identified about two dozen genetic changes that might have helped make our brains not only bigger but incomparably capable. (discovermagazine.com)
Brain scientists are exploiting a number of empirical approaches to shed light on the neural basis of consciousness. (scholarpedia.org)
The scientists discovered that certain nerve cells in the brain perceive specific facial characteristics to create an image of an individual's face. (newstarget.com)
Though scientists have studied gamma waves of the brain in the past, this study is the first to observe a relationship between the size of the visual stimulus and the pattern of gamma waves generated. (deccanherald.com)
To rule out the possibility that this change simply reflects our couch potato lifestyle, the scientists performed additional measurements in specially treated macaque monkeys. (science20.com)
A tantalizing hypothesis suggested by the scientists is that the metabolic roles of human brain and brawn are intertwined. (science20.com)
Scientists have now discovered how different brain regions cooperate during short-term memory. (neurosciencenews.com)
Scientists who study the brain have tried to replicate this phenomenon using computer models of vision, but so far, leading models only perform much simpler tasks such as picking out an object or a face against a cluttered background. (mit.edu)
Noninvasive pulses of ultrasound waves aimed at specific regions in the brains of macaque monkeys can give some control over the monkeys' choices, scientists report. (scitechdaily.com)
The scientists rewarded the monkeys differently for the task. (scitechdaily.com)

Monkeys known as macaques possess the vocal anatomy to produce "clearly intelligible" human speech but lack the brain circuitry to do so, according to new research. (princeton.edu)
Now, the interesting question is, what is it in the human brain that makes it special? (princeton.edu)
The cell composition of the brain and its spatial distribution are the basic issues of brain science, and its importance is similar to the DNA base sequence discovered by human genome sequencing," said study author Dr. Chengyu Li at the Chinese Academy of Sciences. (singularityhub.com)
Hierarchical processing of tactile shape in the human brain. (mpg.de)
A four-dimensional probabilistic atlas of the human brain. (mpg.de)
A probabilistic atlas and reference system for the human brain: International Consortium for Brain Mapping (ICBM). (mpg.de)
Variability and asymmetry in the human precentral motor system - A cytoarchitectonic and myeloarchitectonic brain mapping study. (mpg.de)
The human ability to use tools (like using a knife for cutting) symbolises a great step in our evolutionary lineage 1 , but the brain mechanisms underpinning this behaviour remain debated. (nature.com)
Neuroscientist Christof Koch of Seattle's Allen Institute for Brain Science has called the human brain "the most complex object in the known universe. (discovermagazine.com)
A similar system has been found in the human brain, although it is not yet clear how the respective networks align. (news-medical.net)
Both macaque and human brains also have separate patches that respond to bodies. (news-medical.net)
Human sCJD inocula are brain homogenates from World Health Organization CJD reference materials. (cdc.gov)
The algorithm, used on macaque monkeys, was able to recreate the animal's perception of human faces in fine detail. (newstarget.com)
Upon analyzing brain activity in the animal models, the research team found that they could recreate faces by simply decoding neural activities that correspond to certain aspects of a human face. (newstarget.com)
Electroencephalographic recordings from the developing human brain are characterized by spontaneous neuronal bursts, the most common of which is the delta brush. (elifesciences.org)
This approach is complementary to Human Brain Project where large-scale models aim at detailed repetition of physiology of local networks. (helsinki.fi)
Our primary tool is CxSystem2, in-house programmed software, currently available in Github and Human Brain Project Brain Simulation Platform . (helsinki.fi)
Our modelling work, under the name of Macaque Vision , recently became a partnering project to Human Brain Project. (helsinki.fi)
SARS-CoV-2 human mAbs or a human mAb directed to respiratory syncytial virus (RSV) are nebulized and delivered using positive airflow via facemask to sedated macaques pre- and post-infection. (bvsalud.org)

the brain's model of other brains should assume they are Bayesian too! (slideshare.net)
There are five types of brain waves, and each has a role to play in our brain's function. (deccanherald.com)
When brain waves fluctuate, our brain's capabilities are affected adversely. (deccanherald.com)

All these findings prove that the grand show occurring in your brain could be, in fact, anything but idle and unproductive. (deccanherald.com)
These findings indicate that ultrasonic brain stimulation could provide a noninvasive, drug-free avenue to study and potentially treat decision-making disorders such as addiction. (scitechdaily.com)

The team analyzed brains from three adult male macaque monkeys. (singularityhub.com)
The team introduced SARS-CoV-2 into the throats of four adult macaques and closely monitored the animals' symptoms and vital signs. (livescience.com)
A first-of-its kind series of brain studies shows how an adult learning a foreign language can come to use the. (neurosciencenews.com)

Led by Christina M. Cerkevich, Ph.D., research assistant professor of neurobiology, the investigators compared in marmosets and macaques neural networks that are the origin of descending command signals to control monkey vocalizations. (sciencedaily.com)

When shown to macaques, AI-generated images purposefully caused nerve cells in the monkeys' brains to fire more than pictures of real-world objects. (sciencenews.org)

In their first year of life, babies who will go on to develop autism already show different brain responses when. (neurosciencenews.com)
Felsten G, Benevento LA, Burman D. ( 1983 ) Opponent-color responses in macaque extrageniculate visual pathways: the lateral pulvinar. (neurotree.org)
Macaques immunized intramuscularly with two doses of NARUVAX-C19 vaccine showed no adverse effects and demonstrated cellular immunity as assessed by T cell IFN-Î³ responses against spike protein, in addition to inducing a humoral response. (bvsalud.org)
Overall, NARUVAX-C19 vaccine induced broadly cross-neutralizing antibody and T cell IFN-Î³ responses in rhesus macaques and provided heterologous protection of hamsters against infection by the Delta virus variant. (bvsalud.org)

This blog reports new ideas and work on mind, brain, behavior, psychology, and politics - as well as random curious stuff. (dericbownds.net)
The part of the brain we use when engaging in egalitarian behavior may also be linked to a larger sense. (neurosciencenews.com)
Remote, brain region-specific control of choice behavior with ultrasonic waves. (scitechdaily.com)

All three implants were equipped with modules for wireless data transfer which allowed us to simultaneously record wideband (30kHz) neuronal data and high fidelity EMG signals (2kHz) and initiate temporally and spatially selective ESCS protocols while the monkey walked freely on a horizontal treadmill at a speed of 1.5km/h. (europa.eu)

We now think this particular face patch might be a critical node in social cognition, the process by which the brain infers a sense of agency for another individual and so determines how to interact appropriately,' Freiwald says. (news-medical.net)
2021. A naturalistic environment to study visual cognition in unrestrained monkeys. (awionline.org)

With over six billion cells, their brains are evolutionarily close to ours. (singularityhub.com)

When exposed to the novel coronavirus SARS-CoV-2 twice in a row, two monkeys did not contract an infection a second time, according to a preliminary study. (livescience.com)
The team also euthanized and took tissue samples from one monkey seven days after infection to analyze the viral load in various organs. (livescience.com)
The "virus infection and pathology in monkey model are very similar to those of patients, but monkey models did not show severe symptoms of patients [or] death," Chuan said. (livescience.com)
The macaques showed decreased appetite, increased breathing rate and developed mild to moderate pneumonia about a week following infection. (livescience.com)
Blood samples revealed the monkeys developed antibodies built to target SARS-CoV-2 shortly after infection, with significant concentrations appearing in the blood by the 14th day and remaining elevated when checked 21 and 28 days after infection. (livescience.com)
B virus infection is extremely rare, but it can lead to severe brain damage or death if you do not get treatment immediately. (cdc.gov)
Symptoms typically start within one month of being exposed to a monkey with B virus infection, but could appear in as little as three to seven days. (cdc.gov)
Here, we examine the efficacy of aerosol mAb delivery to prevent infection and disease in rhesus macaques inoculated with the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) Delta variant via intranasal and intratracheal routes. (bvsalud.org)
There is enormous variation in the extent to which fetal Zika virus (fZIKV) infection affects the developing brain. (bvsalud.org)
To further understand how ZIKV affects the developing nervous system and the behavioral consequences of prenatal infection, we adopted a nonhuman primate model of fZIKV infection in which we inoculated pregnant rhesus macaques and their fetuses with ZIKV in the early second trimester of fetal development. (bvsalud.org)

Macaque monkeys can't become reinfected with COVID-19, small study suggests. (livescience.com)
This interaction is important because it suggests the brain is no longer just receiving information from the eyes, but beginning to make sense of it. (news-medical.net)

In the traditional approach, monkeys are brought into a lab to perform visual tasks while they are restrained to obtain stable eye tracking and neural recordings. (awionline.org)

Alzheimer's brains show inter-related changes in RNA and lipid metabolism. (mpg.de)

His scientific research focuses on the brain basis of awareness. (wikipedia.org)
The new research in monkeys, though preliminary, may help start to answer these questions. (livescience.com)
If further research bears this out, we may ultimately be able to identify specific brain activation biomarkers not only for diagnosing such diseases, but for monitoring the effects of interventions. (singularityhub.com)
In order to come up with the algorithm, the research team examined how the brain picks up on certain facial characteristics. (newstarget.com)
Collaborative semen collection in monkeys is a valuable tool in research, animal collection management, and conservation efforts. (awionline.org)
During my eight years studying the brain in research animals, I felt increasingly distressed by the lives I sacrificed to science. (wbur.org)
She was particularly devastated, she says, by her research using Macaque monkeys at an MIT lab. (wbur.org)
1992 ) The effects of dark-rearing on the electrophysiology of the rat visual cortex Brain Research . (neurotree.org)
Brain Research, 162 , 201-217. (bvsalud.org)

Here, we introduce a neuroprosthetic platform capable of spatially selective ESCS controlled by subject's movement intentions decoded from motor cortex neuronal activity - a brain spinal interface (BSI). (europa.eu)

Other areas in the macaque STS might also participate in the representation of facial expression movements. (jneurosci.org)

Macaque monkeys are widely used to study vision. (awionline.org)
Jan Kubanek and colleagues had two macaque monkeys engage in an experiment widely used to investigate choice behaviors: the monkeys looked at a target at the center of the screen and were then presented with targets on the left and right sides of the screen, one shortly after the other. (scitechdaily.com)

So far, studies had shown that gamma waves were found in older brain structures such as the hippocampus (part of the brain that plays a role in memory functions) and the olfactory bulb (part of the brain involved in the sense of smell). (deccanherald.com)
Limited studies of wild-caught African green monkeys from Central Africa indicate a seroprevalence of approximately 30%-50%, apparently without associated immunodeficiency disease. (cdc.gov)

Standage GP, Benevento LA. ( 1983 ) The organization of connections between the pulvinar and visual area MT in the macaque monkey. (neurotree.org)
Computer model of face processing could reveal how the brain produces richly detailed visual representations so quickly. (mit.edu)
The new model posits that when the brain receives visual input, it quickly performs a series of computations that reverse the steps that a computer graphics program would use to generate a 2D representation of a face or other object. (mit.edu)

The study, published in Cell , also tapped into a relatively new tool for brain mapping. (singularityhub.com)
The new study mainly focused on these brain cells. (singularityhub.com)
Additionally, the small study included only four rhesus macaques, two of which were exposed to the virus twice. (livescience.com)
According to our current study, the antibodies produced by the infected monkeys can protect the monkey from the reexposure to the virus," senior author Dr. Chuan Qin, director of the Institute of Laboratory Animal Sciences at the Chinese Academy of Medical Sciences, told Live Science in an email. (livescience.com)
A brain imaging study at the Rockefeller University offers some insight into how faces achieve this special status. (news-medical.net)
The study, published on October 13 in the Proceedings of the National Academy of Sciences , was conducted in rhesus macaque monkeys. (news-medical.net)
In the study, Fisher began by showing macaques still images that either displayed the face of a fellow macaque alone, the body without a face, or the entire animal. (news-medical.net)
How the brain is able to form these richly detailed representations of the world so quickly is one of the biggest unsolved puzzles in the study of vision. (mit.edu)
The current study assessed the immunogenicity, efficacy, and safety of NARUVAX-C19 vaccine in rhesus macaques and hamsters. (bvsalud.org)

devised a test paradigm for metamemory in macaques, in which the monkeys judged their own confidence in remembering past experiences. (dericbownds.net)

People typically get infected with B virus if they are bitten or scratched by an infected macaque monkey, or have contact with the monkey's eyes, nose, or mouth. (cdc.gov)

Scientist have long thought this evolutionary quirk is what gives our brains the ability to manage complex computations. (singularityhub.com)

The newly designed chip has a far wider field of view than previous iterations-like a phone on panoramic mode-making it easier to scan larger brain regions. (singularityhub.com)
To test across the whole-brain which regions are sensitive to learned tool-use knowledge, we applied whole-brain searchlights to an fMRI dataset in which participants performed real hand actions with 3D-printed tools. (nature.com)

Building on the work of Hyvarinen and colleagues and Rizzolatti and colleagues Graziano and Gross described a network of brain areas that appeared to encode the space immediately surrounding the body. (wikipedia.org)
In their initial experiments, Graziano and colleagues used electrical microstimulation on the motor cortex of monkeys. (wikipedia.org)

While this requires a more lengthy surgery, and more complex connectorization, these systems have the advantage of being able to record from many brain areas simultaneously. (scholarpedia.org)
Gamma brainwaves have the highest frequency of all and relate to simultaneous processing of information from different brain areas. (deccanherald.com)

In work published in 2008, Freiwald and his colleague Doris Tsao showed that a network of patches along a deep groove in the sides of the macaque brain act as a specialized system for processing faces. (news-medical.net)

Itaya SK, Van Hoesen GW, Benevento LA. ( 1986 ) Direct retinal pathways to the limbic thalamus of the monkey. (neurotree.org)

1983 ) The organization of projections of the retinorecipient and nonretinorecipient nuclei of the pretectal complex and layers of the superior colliculus to the lateral pulvinar and medial pulvinar in the macaque monkey. (neurotree.org)
While our understanding of the organization of the brain has advanced dramatically in recent years, there have been few successes building a complete system to enable people in such states to regain the ability to interact with and control their environment. (europa.eu)

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