Sentences with phrase «of sensory cortex»

Moreover, when the scientists blocked the firing of the zona incerta neurons during low frequency stimulation of the central thalamus, the average activity of sensory cortex cells increased.

Compared to hearing cats, Blake Butler and colleagues found that cats made deaf in the first weeks of life had reduced connections from the anterior ectosylvian sulcus of the sensory cortex to the superior colliculus (SC) of the midbrain.

I think direct stimulation of the sensory cortex is going to be used sooner or later, but I particularly like the idea of noninvasive devices, like sensors on the tongue.

Indeed, neurons of the sensory cortex were rendered photosensitive to this light, allowing them to be activated by a series of optical flashes and thus integrate the artificial sensory feedback signal.

Not exact matches

Brain drain One set of images focused on gray matter at the brain's wrinkled surface, or cortex, where processing of speech, memory, motor control, emotion, sensory and other information occurs.

Specialized sensory neurons in the inner ear, called hair cells, are responsible for the detection of sounds, and this information is transmitted to the auditory cortex via several intermediate structures.

The thalamus normally acts as a filter, winnowing out extraneous sensory information before relaying data to the cerebral cortex, the seat of memory, attention, language, and consciousness.

Thus, their downregulation, or reduction in response, would allow the content of the limbic systems that process emotion and perhaps sensory cortices to play a relatively more dominant role.

By peering into the eyes of mice and tracking their ocular movements, researchers made an unexpected discovery: the visual cortex — a region of the brain known to process sensory information — plays a key role in promoting the plasticity of innate, spontaneous eye movements.

Initially, sensory areas of the auditory and visual cortex activate to process audible or visual cues.

The brain (specifically, the olfactory bulb and olfactory cortex) then looks at the combination of sensory neurons activated at any given time and interprets that pattern in the context of previous patterns that have been experienced and other kinds of available information.

Hoping to accomplish what some have compared to mind reading, Andersen wants to implant his device in the brain's higher - level sensory - motor areas, including the parietal lobe and premotor cortex, the seats of personal preference and intent.

Scientists knew that fruit flies, cockroaches, and other simple organisms have sensory processors that resemble a cortex, but these were «always interpreted as a striking example of convergent evolution of unrelated structures,» says molecular biologist Raju Tomer, who led the study at the European Molecular Biology Laboratory in Germany.

In my May 2006 column, I described how parts of the brain's cerebral cortex are specialized for particular sensory systems, such as vision, and how there are also overlapping regions between these parts, known as cross-modal areas.

Although the physical basis of consciousness is one of the deepest enigmas in biology, the best guess is that it arises from coordinated activity between the cortex and the thalamus, a switching station for sensory and motor signals, and within the cortex, which handles higher - order cognitive functions.

Francis Crick, co-discoverer of the double helical structure of DNA, and I had hypothesized that the claustrum, a mysterious thin structure located below much of cortex, is critical for binding information across sensory modalities and making it accessible to consciousness.

Intracortical microstimulation of the somatosensory cortex offers the potential for creating a sensory neuroprosthesis to restore tactile sensation.

Through conscious decisions that exert themselves in the «top» regions in the front of the brain, he explains, we can control how much we pay attention to the sights flooding into the «bottom» region, the visual association cortex, which stores this sensory information.

The scans revealed different patterns of activity in the secondary olfactory cortex — a collection of neurons that mediate pleasant sensory responses to smells and tastes.

Women, on the other hand, activated the left hemisphere, which concentrates more on the body's inner environment and is connected to the insular cortex, where sensory information is translated into emotional experiences, and to the hypothalamus, the master regulator of such basic functions as metabolism.

The medial orbitofrontal cortex has been associated with signaling when we feel satiated by a certain type of food (so called «sensory specific satiety»).

The study, published in JNeurosci, is the first to examine the reorganization of outputs from the sensory cortex following hearing loss.

They analyzed the data to determine exactly what was happening in the ventral sensory motor cortex (vSMC)-- how that area of the brain region was laid out, and in what order the neurons activated.

«During the development from childhood to adolescence, the spontaneous activity of cortical regions involved in basic sensory perception decouples from the activity of subcortical structures relaying sensory information from the sensory organs to the cortex,» explains Keysers.

Obese adolescent girls, Stice found, showed greater activation compared with their lean peers in regions of the brain that encode the sensory experience of eating food — the so - called gustatory cortex and the somatosensory regions, archipelagoes of neurons that reach across different structures in the brain.

Sensory neurons, such as those in auditory cortex, on average respond relatively indiscriminately at the beginning of a new stimulus, but rapidly become much more selective.

Wen - Jie Zhao and Jens Kremkow in James» lab focused on the primary sensory cortex, a region in the parietal lobe of the brain.

In both cases, the prefrontal cortex — the control center for most cognitive functions — appears to take charge of the brain's attention and control relevant parts of the visual cortex, which receives sensory input.

Reconstructions of neurons from layers L2 / 3 (red) and L5 (blue) of the primary sensory cortex of mice show their structure and relative positions in the brain tissue.

Trimble discusses research findings that show our brain's emotionally driven limbic system is deeply connected with other areas of the nervous system, such as the sensory cortex, which helps us process our surroundings.

In their recent PNAS paper members of the Imperial College team reported that the presence of LSD was linked to a boost in blood flow and functional connectivity between the brain's primary visual cortex and seemingly unrelated brain networks that mediate other sensory inputs as well as higher - level processes including emotion.

These «maps», found in the motor and sensory cortices (see diagram, below), tend to preserve the basic spatial layout of the body — neurons that represent our fingers are closer to neurons that represent our arms than our feet, for example.

The cortex was where the sensory information — in this case, the sound of the tone — was integrated into conscious awareness, alongside other sensory data transmitted from other parts of the brain.

Subjects with the greatest reduction of the unpleasantness of the pain — which is what most people care about — exhibited the greatest activation of regions in the orbitofrontal cortex and the largest reduction in the thalamus (gating the incoming sensory information).

How the areas of the cerebral cortex communicate with each other and process sensory information has long puzzled neu - roscientists.

At Week 4, the lorcaserin group in the fed state showed less activity in the parietal cortex — which is responsible for integrating sensory information — when looking at any of the food images.

A popular theory of the cause of phantom limb pain is faulty «wiring» of the sensorimotor cortex, the part of the brain that is responsible for processing sensory inputs and executing movements.

According to Paul Reber, a neuroscientist at Northwestern University, it is the result of connections between groups of neurons that form throughout the sensory cortex after repeated exposure to two or more stimuli together or in quick succession.

Researchers pinpoint areas in the hearing cortex of the brain of macaques that respond to visual stimuli, providing clues how primates integrate sensory information

How the cells in the higher - order thalamus influence the sensory signals in the cortex has long been a subject of discussion,» explains Dr. Rebecca Mease, who also worked on the study.

For their experiments, the scientists focused on neurons in the posterior parietal cortex — the part of the brain where visual sensory input and motor action converge.

Halassa says these results demonstrate how the prefrontal cortex is essential to performing such behavioral tasks and how this part of the brain «stores the knowledge ultimately communicated to the TRN to control how much visual or auditory sensory information is suppressed or not, and how the brain ultimately multitasks.»

The types can be distinguished by the molecules they produce, but scientists haven't had a full picture of how they interact with each other as signals move through the sensory cortex.

By scanning his subjects with functional magnetic resonance imaging (fMRI), Ehrsson found the illusion involves interconnected areas of the brain, including the premotor cortex in the frontal lobe (responsible for sensory guidance of movement) and the intraparietal cortex in the parietal lobe (involved in locating and recognizing body parts).

According to Rudy, who is also the Valentino D.B. Mazzia, MD, JD, Professor of Anesthesiology in the Department of Anesthesiology, Perioperative Care, and Pain Medicine, neurons in the cortex are known to play a key role in sensory perception, memory formation, and learning.

The functional organization of the cerebral cortex is modified dramatically by sensory experience during early postnatal life.

The cerebral cortex is the outer layer of brain tissue, a folded region about 2 - 4 millimeters thick, that is involved in many important aspects of brain function including sensory and cognitive processes.

However, delivering this information to the part of the brain responsible for processing sensory inputs does not work if this part of the brain is injured or the connections between it and the motor cortex are lost.

In a pioneering series of anatomical studies carried out over the past three decades, Rakic has revealed how neurons in the developing cerebral cortex are generated and how they assemble themselves into highly ordered, distinctively layered, and densely interconnected circuits that direct higher order sensory and motor functions.

According to the principle, the brain's cortex manages the tremendous amount of sensory information — images, sounds, smells, etc. — flooding it constantly by reformatting the influx into various components called features, so that it takes very few neurons to process it.