Tag: "frontal" at medical news

Brain activity reflects differences in types of anxiety

...ncreased activity in a region of the left inferior frontal lobe that is associated with speech production. The anxious arousal group had more activity in a region of the right-hemisphere inferior temporal lobe that is believed to be involved in tracking and responding to information signaling danger. Other...

Vasectomy may put men at risk for type of dementia

...n the brain. In FTD, most of the damage is in the frontal lobes; in PPA, it's in the language centers of the left hemisphere of the brain. Weintraub theorizes a vasectomy may raise the risk of PPA (and possibly FTD) because the surgery breeches the protective barrier between the blood and the testes, ca...

Brain studies reveal the mechanisms of the voluntary control of visual attention

...ested an initial start of attentional orienting in frontal areas only, followed by joint activity in both frontal and parietal attentional control brain areas, Woldorff said. Additional computer analysis combining ...

Neurons targeted by dementing illness may have evolved for complex social cognition

...th, whales. Across species, VENs are localized to frontal brain regions associated with cognition, emotion and social behavior. Frontotemporal dementia (FTD), a common neurodegenerative condition, is characterized by early breakdown in social and emotional awareness and is accompanied by atrophy and dysfunc...

Study offers window into human behavior, brain disease

...om them were localized in only two regions of the frontal lobes. The cells received only limited attention in the ensuing years, but in the meantime scientists determined that the brain regions in which von Economo neurons arise -- the anterior cingulate and frontoinsular cortex -- are key targets of front...

New imaging technique identifies people-at-risk for Alzheimer's disease

...ypically accumulate in the temporal, parietal and frontal brain regions. Patients with Alzheimers disease showed the most FDDNP binding, indicating a higher level of plaques and tangles than other subjects. "We could see the definitive patterns starting early in patients with mild cognitive impairment ...

Brains can recover from alcoholic damage but patients should stop drinking as soon as possible

...out 20%, while levels of NAA in the cerebellar and frontal region of the brain and frontal choline significantly increased by about 10%. Brain volume regeneration correlated with the percenta...

Measuring brain activity for emotional markers that may indicate risk for developing alcoholism

...how an asymmetry of activity in the left and right frontal areas of the brain. The pattern of asymmetry found... study examines measures of brain activity in the frontal regions of the brain, thought to reflect individual differences in emotionality, an important aspec...

Scientists find 'chemo brain' no figment of the imagination

...mptoms and lower metabolism in a key region of the frontal cortex," explained Silverman, a member of UCLA's J... test." The scans revealed that blood flow to the frontal cortex and cerebellum spiked as the chemotherapy patients performed the memory tests, indicating a r...

Penn researchers find Lou Gehrig's, FTD disease protein

...ether these toxic waste products get dumped in the frontal and temporal lobes (the part of brain controlling judgment and comportment), or the spinal cord motor neurons (the control centers regulating the ability to walk, run, and other types of movement). A connection between these two disorders has lon...

New studies in the journal Sleep focus on helping children, women sleep better

...mmunohistochemistry of noradrenergic fibers in the frontal cortex. "DSP-4 decreased the amplitude of the sleep-wake rhythm in LD animals by significantly decreasing wakefulness and increasing sleep during the active period," the authors wrote. "However, DSP-4 had no effect on the sleep-wake cycle of DD ...

Study identifies part of brain responsible for tone deafness

...n white matter concentration in the right inferior frontal gyrus of amusic individuals," explained Dr. Isabel...s to the integrity of white matter tracts in right frontal brain areas as being key in acquiring normal musical competence." "We used a technology called vox...

Emotional control circuit of brain's fear response discovered

...rostral anterior cingulate cortex, a region of the frontal lobe, was activated to resolve the conflict. Critically, the rostral cingulate dampened activity in the amygdala, so that the emotional response did not overwhelm subjects performance, thus achieving emotional control.facial expressions. This paper ...

Childhood sleep apnea linked to brain damage, lower IQ

...dentified changes to the hippocampus and the right frontal cortex. Next, using IQ tests and other standardize...al to learning and memory storage, while the right frontal cortex governs higher-level thinking, such as accessing old memories and using them in new situation...

Neurological effects of childhood sleep apnea

...spartate/choline in the left hippocampus and right frontal cortex, indicating possible neuronal injury in the...malities of parts of their brain, specifically the frontal cortex, cerebellum, and hippocampus, but this is the first study to investigate similar changes in c...

Brain stimulation that may boost vision from the corner of your eye

...o show that stimulating a particular region of the frontal cortex that is normally involved in generating eye movements can change activity in visual cortex, almost as though an eye movement had been made (even though the eye itself stayed still). Perceptual tests confirmed that this brain stimulation had ...

Mice learn tasks that may help treat human psychiatric disorders

...ase, schizophrenia, Tourette's syndrome, traumatic frontal brain lobe injury and a host of other human mental disorders for which set shifting is an important monitoring tool." According to the Centers for Disease Control and Prevention (CDC), 3.4 per 1,000 children have autism or another autism spectrum d...

Memory loss affects more of the brain than previously thought

...to AD, and found altered functionality in both the frontal and temporal lobes of the brain. Previous studies ...ng-term memory formation. "Involvement of both the frontal and temporal lobes in the earliest stages of AD suggests the possibility of a breakdown in the commu...

Erotic images elicit strong response from brain

...ral cells within the brain and have shown that the frontal cortex contains neurons that can discriminate between different categories of visual objects such as dogs versus cats. Whether or not the human prefrontal cortex contains special neurons that are "tuned" for sex remains a subject for future studies. ...

Master planners in brain may coordinate other areas' roles in cognitive tasks

...e dorsal anterior cingulate and the left and right frontal operculum. The cingulate is found near the midline of the top of the brain; the opercula are at the base of the brain in both the left and right hemispheres. "For years, when you looked at maps of what different parts of the brain do, the opercula h...

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