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Tag: "arousal" at biology news

Out-of-body experiences may be caused by arousal system disturbances in brain

...e may seem far-fetched to some, but for those with arousal system disturbances in their brains, it may not be...eep. Nelson suggests that phenomena in the brain's arousal system, which regulates different states of consciousness including REM sleep and wakefulness, may b...

Prenatal cocaine's lasting cellular effects

...t." These children often exhibit attention and arousal problems, similar to children with attention deficit hyperactivity disorder (ADHD). However, the standard treatments for ADHD -- Ritalin and other stimulants -- are not always effective in these children. Studying the effects of prenatal cocaine ...

Brain networks strengthened by closing ion channels

...sorder (ADHD). "Our data reveal how the brain's arousal systems influence the cognitive networks that subserve working memory-which plays a key role in abstract thinking, planning, and organizing, as well as suppressing attention to distracting stimuli," said http://info.med.yale.edu/neurobio/arnsten/arn...

New measure of sexual arousal found for both men and women

...milar patterns of temperature change during sexual arousal with no significant differences between genders in...found that women's subjective experience of sexual arousal corresponded with their physiological genital response; this challenges the common notion that women...

A potential biological cause for sudden infant death syndrome

...egulates breathing, blood pressure, body heat, and arousal ?in babies who died from SIDS. SIDS is the lead...brainstem, which in turn stimulate respiratory and arousal centers in the brain so that the baby doesn't asphyxiate. "A normal baby will wake up, turn its ...

Anticipation plays a powerful role in human memory, brain study finds

... the future, we could look for ways to dampen that arousal response in patients so that they do not evoke negative memories so easily," she adds....

New mechanism explains glucose effect on wakefulness

...the continuous daily readjustments in the level of arousal and alertness." The researchers concluded that th...de important new insights into how the brain tunes arousal and metabolism according to body-energy levels." ...

Thermal imaging shatters arousal gender gap myth

...chnology for the first time ever to measure sexual arousal rates has turned the conventional wisdom that wome... than men on its head. "Comparing sexual arousal between men and women, we see that there is no difference in the amount of time it takes healthy you...

Pure novelty spurs the brain

...by the unexpectedness of a stimulus, the emotional arousal it causes, or the need to respond behaviorally. The SN/VTA exerts a major influence on learning because it is functionally linked to both the hippocampus, which is the brain's learning center, and the amygdala, the center for processing emotional inf...

Studies suggest new brain protein may help in treating schizophrenia, insomnia and anxiety

...een how NPS is unique, being able to modulate both arousal and stress responses. So it could potentially be a target for drugs to treat anxiety and, interestingly, both insomnia and narcolepsy," he added. The receptor for NPS belongs to a class of those with similar structure called G protein-coupled recept...

Study reveals how ADHD drugs work in brain

...haviors, while norepinephrine has been linked with arousal and attentiveness. Berridge notes that scientists...nd the medial septum, which has been implicated in arousal and movement. Working with rats, the researchers conducted laboratory and behavioral tests to ensur...

How the brain learns to become addicted

...euroscientist Roy Wise commented that "Inasmuch as arousal or stress can trigger drug-seeking in drug-free animals, the neuroadaptations discovered by the Bonci group are important not only for how rewarding the drug is after an animal starts taking it, but, perhaps more importantly, for how likely the anima...

Flies on speed offer insight into the roles of dopamine in sleep and arousal

...ter dopamine in the modulation of sleep, wake, and arousal states. The work is reported by Dr. Ralph Greenspan and colleagues at The Neurosciences Institute in San Diego. The researchers found that long, sleepless nights, heightened locomotor activity, frenetic brain activity, and frenzied (but ultimately ...

Love's all in the brain: fMRI study shows strong, lateralized reward, not sex, drive

...her beloved and protect the relationship." Sexual arousal 'very different'; confirmation of questionnaire methods Aron added: "Our participants who measured very high on a self report questionnaire of romantic love also showed strong activity in a particular brain region ?results that dramatically increase...

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