Sentences with phrase «visual brain areas»

Several dream researchers have proposed the opposite path, suggesting that dreams originate in the regions that store memories and then connect to visual brain areas.

Not exact matches

From brain - imaging studies, we also know the visual cortex becomes more active while the area [in the brain] responsible for empathy becomes less active.

As Larry Leverenz, Ph.D, ATC, a co-author of the groundbreaking 2010 study (4) that was the first to identify such athletes noted, because such athletes have not suffered damage to areas of the brain associated with language and auditory processing, they are unlikely to exhibit clinical signs of head injury (such as headache or dizziness), or show impairment on sideline assessment for concussion, all of which test for verbal, not visual memory.

In the full - term infants, brain activity was detected in the visual areas of the brain even when the image didn't appear as expected, a sign of this top - down sensory prediction.

Using brain scans to compare the gray matter of children with RAD to typically developing children, the researchers found significantly reduced volume of gray matter in the area of the brain known as the left primary visual cortex.

This is the area of the brain that regulates the stress response to emotional visual images.

This, along with changes in brain waves in visual regions and an increased blood flow in that area, correlated with reports of hallucinations.

The test, Raven's Progressive Matrices, usually entails both visual and symbolic reasoning, although brain imaging of study subjects with autism showed they were able to score well using only the areas of their brains associated with visual processes.

Some RGC axons grew all the way back to the brain's visual - processing areas.

Although the role of the visual cortex and other areas of the brain are being identified, and their functions clarified, it is not likely that there is a «truth» center in the brain or a «lying» center.

On the other hand, regions of the brain which aren't associated with intelligence — the visual, auditory, and sensory - motor areas — show small variability and adaptability.

«We wanted to find out how and where visual information about grasped objects, for example their shape or size, and motor characteristics of the hand, like the strength and type of a grip, are processed in the different grasp - related areas of the brain,» says Schaffelhofer.

According to the mri results, 38 minutes after Rennich entered the tube, an area of darkness — of no color at all — appeared on the image of his brain, indicating that the neurons in a small region of the cerebral cortex were no longer transmitting visual information.

The three brain areas AIP, F5 and M1 lay in the cerebral cortex and form a neural network responsible for translating visual properties of an object into a corresponding hand movement.

Each of these subtypes has to form connections with a different area of the brain that processes visual information.

Mapping the path of the tentacle nerves showed that they feed into an area of the brain that processes sensory signals, close to where it responds strongly to visual signals.

That's why the MRIs of the memory contestants showed activation in the brain areas associated with visual imagery and spatial navigation.

Whereas some of the other types of visual prostheses propose stimulating different areas of the brain from the one Pezaris is targeting, another promising project known as the Argus II Retinal Prosthesis System is expanding its U.S. clinical trial into Europe.

Visual processing is likely to be similar to how the brain processes smells, touch or sounds, the researchers say, so the work could elucidate processing of data from these areas as well.

These similar kinds or synchronized signals were found in brain areas that are connected with the early - stage processing of visual stimuli, detection of movement and persons, motor coordination and cognitive functions.

These signals are sent to the back of the brain to an area called V1 where they are transformed to correspond to edges in the visual scenes.

«We think that these sensations may sometimes reflect leakage of information from visual parts of the brain into areas that are more usually devoted to hearing.

If certain areas of the brain that process visual information are activated — by a blow to the head, for example — tiny stars of light appear.

In January, Knudsen's team discovered that a brain area called the optic tectum (OT) sends visual signals that tweak the map: When the team members destroyed the connections between the OT and ICX, the map ceased adjusting.

They detected little or no MHCI expression in some areas of the brain, but they found it in several other places, including the visual cortex while the ocular dominance columns were forming, and in the hippocampus — an area of the brain associated with learning and memory — at all ages.

Nevertheless, studies that compare the vivid imagery of dreams with daytime vision reveal similar patterns of activity in the visual cortex, the largest brain area devoted to vision.

We know, for example, that different areas of the brain are involved in processing color and form of visual images.

A brief period of postnatal visual deprivation, when early in life, drives a rewiring of the brain areas involved in visual processing, even if the visual restoration is completed well before the baby reaches one year of age, researchers at the University of Trento, McMaster University, and the University of Montreal revealed in Current Biology.

Noisier signals arriving in higher visual areas may be harder to interpret, distracting the brain from the target and so making it more difficult to detect.

The causes of blindness in children are varied, but cerebral visual impairment (damage to areas of the brain associated with vision) is among the most common.

«One camp of neuroscientists believe that we access both the phonology and the visual perception of a word as we read them, and that the area or areas of the brain that do one, also do the other, but our study suggests this isn't the case,» says Glezer.

Clint Perry, senior author on the paper, said: «These correlations suggest that bees with more synaptic complexes in the visual association areas of their brain were predisposed to better memory and faster learning.

Li Li said: «For the first time, we have shown that visual learning can increase the density of nerve connections in this area of the brain and that an enriched environment, where bees are exposed to many colours without learning anything from them, can also affect the synaptic organisation in the brain.»

«Even the primary visual cortex, the first visual area of the brain that registers input from the eyes, is activated by imagery with the eyes closed.

Although the primary visual cortex usually communicates mainly with other parts of the vision system, many other brain areas contributed to the processing of images in volunteers who received LSD.

Blind human echolocators use visual areas of the brain.»

Neurologists Daniel Winkowski and Eric Knudsen of Stanford University wired 12 owls with electrodes in the areas of their brains that process either visual or auditory input.

Amedi says the traditional sensory - organized brain model can't explain this activity; after all, the subjects only heard the information, and scientists believed that the body - recognizing area shouldn't have fully developed without visual experiences during development.

The connectivity was measured in 15 patients with visual hallucinations, 40 patients without visual hallucinations, and 15 healthy controls by calculating the level of synchronization between activation patterns of different brain areas.

Fathers of daughters had greater responses to their daughters» happy facial expressions in areas of the brain important for visual processing, reward, emotion regulation, and face processing than fathers of sons.

And when volunteers listened to spoken sentences, all their brains showed similar responses in the visual word form area.

Spatially oriented brains have an above - average grey matter volume in the right precuneus, a small area of the brain associated with processing visual - spatial information.

UNTIL ABOUT 35 years ago scientists believed there was only a single visual - processing area, called the visual cortex, situated at the back of the brain.

At the same time, the researchers monitored nerve firing in a part of the cortex — the ventral intraparietal area — that serves as an interface between the brain's visual and motor processing regions.

Over the past 50 years, we have learned more about the visual parts of the brain than any other areas, and we have a solid understanding of how neural activity leads to visual perception in a typical brain.

So pinpointing these differences in visual areas might reveal important details about processing in brain regions related to social functioning and language, which are not as well understood.

Eating behaviors are also linked to areas of the brain associated with self - control (such as the left superior frontal region) and visual attention (such as the right middle temporal region).

The scans firstly confirmed which regions of the brain are associated with reading: as expected, the visual word form area, which is known to enable people to link sounds with written symbols, became active during reading, demonstrating that it plays an important role.

In this way, areas of the brain responsible for the motor system were active when a subject translated a term previously learned through gesture, while areas of the visual system were active in the case of words learned with the help of images.

A new study by MIT neuroscientists reveals how the brain achieves this type of focused attention on faces or other objects: A part of the prefrontal cortex known as the inferior frontal junction (IFJ) controls visual processing areas that are tuned to recognize a specific category of objects, the researchers report in the April 10 online edition of Science.