Sentences with phrase «fearful memories of»

For example, if it was raining at the time a child was in a car accident, a child might connect rain with the fearful memories of the car accident.

Specifically, the findings explain how a particular gene — called fkbp5 — is involved in a phenomenon known as «fear extinction,» through which animals and humans disassociate with fearful memories of a traumatic experience, such as war, assault or a natural disaster.

They herded each mouse into a special cage and delivered a mild electric shock to its foot, leading the mouse to form a fearful memory of the cage.

Not exact matches

I just have a lot of FEARFUL memories.

As the animals learned, the researchers recorded electrical signals from individual neurons in the amygdala, a brain structure that forms memories of fearful experiences.

«It's very interesting work but not practical for clinical treatment of patients,» says Denis Paré, a neuroscientist at Rutgers University in New Jersey who is also studying pharmacological approaches to manipulating fearful memories.

Some scientists might explore how and why the neural circuits that detect threats and store fearful memories sometimes behave in unusual ways after traumatic events — the kinds of changes that are partially responsible for post-traumatic stress disorder.

A mouse's memory of a single fearful event is one thing; the complex associations of human memory, powered by a dense network of neuronal connections, is quite another.

«If the effects of alcohol on memories to fearful responses are similar in humans to what we observe in mice, then it seems that our work helps us better understand how traumatic memories form and how to target better therapies for people in therapy for PTSD.

Results of their study demonstrate, they say, that alcohol strengthens emotional memories associated with fearful experiences and prevents mice from pushing aside their fears.

«These drugs, together with alcohol, may affect the ability to let go of fearful memories in different ways.»

The next day, when both sounds were played, the rats who had been given the drug were fearful of the siren but not of the beep, suggesting that the beep - plus - shock memory was blocked.

«Extinction of fearful memories and extinction of drug - seeking memories relies on the same substrate in the brain.

The new work reveals that at least one form of long - term memory — that of fearful experiences — seems to become fragile when reactivated.

Scientists must still discover whether memories other than fearful ones undergo a similar kind of reprocessing when they are retrieved.

Now, though, at the very moment in which a rat remembered the shock, the scientists injected an antibiotic that inhibits the synthesis of new proteins into its amygdala — a part of the brain long known to store lasting memories of fearful experiences.

They found that dexamethasone, a widely prescribed steroid for inflammatory conditions, affects the expression of fkbp5 in the brain, preventing the formation of the fearful memories that are the hallmark of PTSD.

«If dexamethasone works well in humans, we could potentially use it to prevent fearful memories in soldiers on the battlefield, patients in emergency rooms, or anywhere else where healthcare providers provide treatment within hours of traumatic events.»

«Turning down the brain to erase fearful memories: Weakening communication between two parts of the brain in mice reduced their fear levels.»

«Much of extinction training — the process of learning that a fearful cue is no longer fearful — in adult rodents closely parallels aspects of exposure - based psychotherapy for humans, where an exposure to a stimulus that was associated with trauma shares many aspects of the initial traumatic memories.»

Pointing to the change in amygdala activity, which is central to the brain's system of storing and recalling fearful memories (see How Fear Works to learn about this process), the researchers say the memory was not simply disconnected from fear, but that it was actually erased in its entirety.

Now, in a study published online by the journal Nature Neuroscience, researchers from Israel's Weizmann Institute of Science say that by weakening the communication between neurons in two parts of a mouse's brain, they've been able to erase a fearful memory.

This region of the brain is hardly blah, though, as Tonegawa and his team determined that the two groups of neurons are genetically programmed to encode either fearful or happy memories.

Drugs that block these receptors have been shown to block the formation of fearful memories and to reduce the anxiety associated with alcohol withdrawal in rodents.»

It takes a lot of courage to admit; I was fearful I wouldn't be able to savor the first memories with my newborn because «bouncing back» would be at the forefront of my thoughts.

This film thus does ask this question, and it does so with the intelligence that has characterized the filmmaker over the years: What does vengeance mean when the memory of the avenger is slowly vanishing, the self slowly losing itself, fading from its fearful recipient, a soulless search to vindicate wrongs he no longer remembers?

When your dog or cat experiences a fearful situation (stimulus), anxiety is increased and a deep seated, lasting memory of the experience is buried in your pet's brain.

The memories of a traumatic collision can haunt victims leaving them fearful or even unable to drive.

A significant emphasis is on the biology of fearful memory, which we dissect using Pavlovian conditioning paradigms.

In more mature persons, however, memories of fearful events are put in perspective, and people generally do not feel the same fear they felt as a child when confronting a similar situation as an adult.