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startle in Medical News

Beware of Dog Bites

... dog bites be prevented? Avoid unfamiliar dogs or any dogs acting strangely. Just stay away from them if you can. Don't run from, scream at or startle a dog. Remain motionless if approached by an unfamiliar, possibly threatening dog. If knocked over by a dog, roll into a ball, lie still and co...

Beta Blocker Blocks Feelings of Bad Memories

.... On the first day, the subjects learned to associate images of spiders with a mild electrical shock. Fear was measured by assessing each individual's startle response -- how much their eyes blinked in response to the stimulus. That fear memory was then consolidated -- written to the hard disk, if you will. ...

Large hormone dose may reduce risk of post-traumatic stress disorder

...mal model of PTSD, high doses of a cortisol-related substance, corticosterone, prevented negative consequences of stress exposure, including increased startle response and behavioral freezing when exposed to reminders of the stress. Cortisol is secreted into the blood stream through the adrenal glands, w...

Study offers new insights into teenagers and anxiety disorders

...k, during the fourth red screen.) All participants showed an elevated startle response when the threat of shock was most imminent, during the final count...to survival. However, those teenagers high in neuroticism showed a stronger startle response under conditions when the shock was not imminent and, in particula...

Sprinters closest to starter pistol have advantage over those farther away, says study

...untary contractions, and when those sounds evoke a startle response, RT is decreased even further, which is a...ound during a freezing episode we might be able to startle patients into moving as we know that faster reaction times induced by a startle response are due in part to bypassing the cortical...

A research on 'craving' for tobacco establishes the bases for addiction control

...with situations that produce desire (related with leisure, free time, coffee), analysing the hearts defensive cardiac response produced as well as the startle response. Lastly, brain modifications associated with emotional responses of frustration and impulsiveness in smokers in withdrawal were studied. Thi...

Virtual Reality Therapy May Help PTSD Patients

...herapy. The researchers measured the severity of each veteran's acoustic startle response before treatment, during treatment, and immediately after treatmen...ark, all the men appeared to benefit from the virtual reality therapy, with startle severity reduced, on average, by 75 percent. Although the researchers ha...

MIT's McGovern Institute honors Emory neuroscientist for contributions to psychiatry

...into the neural basis of fear and anxiety. His early research exploited the startle reflex of rats in response to a sudden noise. He showed that this response ... a classic 1982 paper he traced the entire brain pathway that underlies the startle reflex, paving the way for detailed studies of the neural mechanisms that u...

GlaxoSmithKline Obtains Exclusive U.S. OTC Marketing Rights to MEVACOR(R) (lovastatin) from Merck & Co., Inc.

...total: 0/7, 0/17, and 1/79, respectively, compared to 0/5 in the control group) and delays in pup development (delays in the appearance of an auditory startle response at 200 mg/kg/day and free-fall righting reflexes at 20 and 200 mg/kg/day). Direct dosing of neonatal rats by subcutaneous injection with 10...

Experts Stress Need for Follow-up Evaluation of Children Who Fail Hearing Loss Screening

...arent lack of understanding." As far as most parents are concerned, he says, hearing is a dichotomy: "You either have it or you don't." But babies who startle at loud noises, such as pots slamming, might not be able to hear lower-decibel sounds, White says. Newborn hearing screening programs have lowere...
startle in Medical Technology

AstraZeneca Submits sNDA for SEROQUEL XR(TM) for the Treatment of Generalized Anxiety Disorder - a First for the Atypical Antipsychotic Class of Medicines

... to get rid of their concerns, even though they usually realize that their anxiety is more intense than the situation warrants.(1,2) They can't relax, startle easily, and have difficulty concentrating. Often they have trouble falling asleep or staying asleep. Physical symptoms that often accompany the anxiet...

New Data on SEROQUEL XR(TM) in Treatment of Both Major Depressive Disorder and Generalized Anxiety Disorder Presented at APA Annual Meeting

... to get rid of their concerns, even though they usually realize that their anxiety is more intense than the situation warrants.(8,9) They can't relax, startle easily, and have difficulty concentrating. Often they have trouble falling asleep or staying asleep. Physical symptoms that often accompany the anxiet...
startle in Medical Dictionary

Moro reflex

... The Moro reflex , also known as the startle reflex , is one of the infantile reflexes. It may... reflex ( ′mörō ′rē′fleks ) ( physiology ) The startle reflex observed in normal infants from birth ...eflex ' ... The Moro reflex , also known as the startle reflex ....
startle in Biological News

Whiplash injuries ?are they caused by startle reflexes?

New research published in The Journal of Physiology suggests that a cause of whiplash injuries could be startle reflexes elicited by unexpected loud sounds. Whiplash injuries most commonly result from seemingly minor low-speed rear-end collisions. The reason for the injury is not known but it is...

A breath mint made from... coffee?

...w why Starbucks puts boxes of breath mints close to the cash register. Your morning latte can create a startling aroma in your mouth, strong enough to startle your co-workers too. But intriguing new research from Tel Aviv University by renowned breath specialist Prof. Mel Rosenberg of TAU's Sackler Facul...

Discovery of a water snake that startles fish in a way that makes them flee into its jaws

...es hypnotizing their prey. The tentacled snake from South East Asia has developed a more effective technique. The small water snake has found a way to startle its prey so that the fish turn toward the snake's head to flee instead of turning away. In addition, the fish's reaction is so predictable that the sn...

An end to fear

...stimulus and the other was not. Eventually the human volunteers exhibited a startle response (fear) upon seeing the first spider without the pain stimulus bein...d propranolol but whose memory was not reactivated still exhibited a strong startle response. The fear response was measured using two electrodes under the eye...

The genetics of fear: Study suggests specific genetic variations contribute to anxiety disorders

... with a shock. The participants learned during the experiment to fear picture A as assessed by physiological responses, the so-called fear potentiated startle response. To test if this learned fear could be overcome (also known as fear extinction) the volunteers came back into the lab the following day. T...

Genes may make some people more prone to anxiety

... next measured the intensity of each participant's startle response by attaching electrodes to the eye muscle...each. A loud, 35-millisecond white noise, called a startle probe, sounded at random while they watched. When participants blinked, showing the startle response, a bioamplifier took readings from the el...

Social stress + darkness = increased anxiety

...ned fear in humans. To do this, they measured the startle reflex of healthy volunteers in either light or da...ic speaking, or after a period of relaxation. The startle response is a sensitive tool for measuring anxiety...timuli via headphones. The authors found that the startle response was boosted when the volunteers were in c...

The great escape -- fleeing fish fall in line

... for individual fish to maintain a given rank, indicating that the chronological order of escape responses within a school is maintained in successive startle events. Head of the research group Dr Paolo Domenici stated, “Our work is the first to show that fish maintained under the same conditions, with...

Zinc plays important role in brain circuitry

...tant mice showed tremors, delayed ability to right themselves when turned over, abnormal gait, altered transmission of visual signals, and an enhanced startle response to sudden noise. Electrophysiological studies of the mutant animals' brain and spinal neurons showed significant zinc-related abnormalit...

Molecular trigger for Huntington's disease found

...in, knocking out p53 corrects behavioral abnormalities that the mice otherwise display. These behaviors include abnormal reflexes such as an inhibited startle response to loud noise, which is also present in human HD patients. "In summary, our study establishes a specific role for p53 in HD," concluded Sa...
startle in Biological Dictionary

Habituation

...is reduction of responsiveness to repeated stimulation, is a good ... The most widely used model of habituation in vertebrates is the acoustic startle ... interventions is the phenomenon of habituation . ... If the habituation persists, the anger generates ... during the marketing effort to kno...
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