Sentences with phrase «brain signalling chemical»

Dopamine is a brain signalling chemical that is vital for our control of movement.
Parkinson's disease is caused by loss of the brain signaling chemical dopamine and affects about 1 million people in the United States.

Not exact matches

The chemical tells individual neurons to fire off a signal or not, influencing other brain signals and pathways, and essentially serves as a traffic cop of motivation, emotion, and social behavior.
Love is an emotion, a mix of hormones, chemicals, and electrical signals in the brain and body.
However, I do not believe that it could not possibly survive the death of the body because it is embodied in the unique patterns of electrical and chemical signals in the brain.
That initial swoon over a new baby is more than just love; it's a series of chemicals signaling the brain to care for this helpless infant, and ultimately can help explain the survival of our species.
Their electrical and chemical signals can be detected, recorded and interpreted, and their chemicals can be identified; the connections that constitute the brain's woven feltwork can be mapped.
The thinking that happens inside your brain can be traced to chemical signals passing between neurons, and those chemicals move the way they do because of electromagnetism.
Was there a chemical or genetic signal that induced stem cells to create the complex structures of the body and brain?
The scientists observed that transmission of chemical signals between the nerve cells are facilitated by AMPA - receptors and the activity occurs on the brain cell surface.
These thin, tubelike structures transmit electrical and chemical signals that are vital for carrying information among different regions of the brain.
Recent research has shown that the cascade of signals in the proinflammatory immune response tend to cause the amino acid tryptophan to break down into kynurenic acid rather than serotonin, a brain chemical that influences mood.
To discover this, Hui Liu, Gene Robinson, and Eric Jakobsson of the University of Illinois developed new computational tools to analyze patterns of gene conservation across a wide range of animals, for genes activated and inhibited in the honey bee brain by exposure to a chemical communication signal that triggers alarm.
In the hippocampus and the amygdala, areas of the brain thought to be associated with episodic memory, researchers had shown that the chemical signaling agent called glutamate acts like a key in the lock of some of these protein «flood gates.»
The brain uses the chemical to communicate between cells, and dopamine signals different events depending on its location.
Parkinson's disease is caused by the death of neurons in the brain that produce dopamine, a chemical that shuttles signals between neurons and is responsible for controlling the body's movement.
Multiple sclerosis (MS) is caused by immune cells that activate a cascade of chemicals in the brain, attacking and degrading the insulation that keeps neuronal signals moving.
Ultimately, these neurons form a circuit between the brain and the target tissue through which chemical and electrical signals are relayed.
Nerve cells in the brain, or neurons, are known to communicate among themselves by transmitting electrical signals, aided by chemical signaling at the synapses connecting the neurons.
What was especially «exciting» about this finding, he says, is that these variations were near a neural highway that previous studies have shown helps regulate life span in worms and flies, and that stopping chemical signals from this brain pathway extends the life span of mice.
In the brain, cytokines can disrupt the production and release of several important signaling chemicals, including serotonin, dopamine and glutamate, which help control emotion, appetite, sleep, learning and memory.
It was originally investigated in 1995 by pharmacologist Franco Borsini and a team of researchers at Boehringer Ingelheim Italia in Milan as an antidepressant because of its ability to regulate neurotransmitters — the brain's chemical - signaling molecules.
Although the scientists can't assume hospitalization is directly causing suicide, they say their work backs up a hot theory that inflammation — one of the body's main defenses against infection — influences depression by generating a chemical that interferes with brain signaling.
Though the brain is better understood than it was a generation ago, Vorstman says, how its intricate dance of chemical and electrical signals gives rise to mind and personality remains mysterious.
In the brains of all vertebrates, information is transmitted through synapses, a mechanism that allows an electric or chemical signal to be passed from one brain cell to another.
The researchers speculated that brain cells might be particularly reliant on their mitochondria to power the production and recycling of the chemical signals they use to transmit information.
They are thought to work by blocking the reabsorption of the neurotransmitter serotonin in the brain, leaving more of it available to help brain cells send and receive chemical signals, thereby boosting mood.
Studies in animals indicated that in branches of the nerve that exit from the back of the brain and wrap around various parts of the face and head, overactive cells would respond to typically benign lights, sounds and smells by releasing chemicals that transmit pain signals and cause migraine.
Receptors facilitate chemical and electrical signals between neurons in the brain, allowing those neurons to communicate with each other.
The drug boosted dopamine, a brain chemical involved in pleasure and motivation, equivalently, but pair - bonded voles had fewer receptors ready to receive the dopamine signal.
These electrical pulses travel along specialized extensions called axons to cause the release of chemical signals elsewhere in the brain.
Some of the pinpointed genes are known to be involved in the function of synapses, tiny connectors that allow brain cells to communicate with each other through electrical and chemical signals.
We may owe some of our unique intelligence to a generous supply of a signalling chemical called dopamine in brain regions that help us think and plan.
This brain chemical (also known as a neurotransmitter) helps nerve cells to send signals to other nerve cells.
By telling brain cells when they have struck gold, the chemical apparently signals them to keep doing whatever they did that led to success.
The researchers looked in rats» brains for the genetic instructions needed to make a key «pleasure receptor,» called D2, that allows brain cells to receive signals sent by the brain chemical dopamine — or cocaine.
From there, the chemical races into the brain's appetite centre, in the hypothalamus, and shuts down neurons involved in signalling hunger, Shulman's team found.
Rose and neuroscience doctoral student Rishi Alluri used a novel combination of recording electrical activity of single brain cells and blocking neurotransmitter chemicals that carry nerve signals from one nerve cell or neuron to the next.
Dopamine is a chemical messenger aiding the transmission of signals in the brain and other areas of the body.
And there's some evidence of similarly disrupted patterns of chemical signalling in the brains of people with sleep disorders and ADHD.
Dopamine, long reputed to be the brain chemical that signals pleasure, turns out to have more to do with wanting than with liking.
The flimsy molecular pen may help map the brain's chemical circuitry and decipher the signals that control the beating heart.
January 4, 2006 Chemical signaling helps regulate sensory map formation in the brain Researchers from the University of Chicago have uncovered an important mechanism used by the developing brain to pattern nerve connections in the part of the brain that interprets visual signals.
In the tiny brain space where two nerve cells meet, chemical and electric signals shuttle back and forth, a messaging system that ebbs and flows in those synaptic spaces, sometimes in ways that scientists believe aid and abet learning and memory.
Brain cells communicate with each other by firing off tiny chemical and electrical signals.
The model also activates markers for cells that have the classic excitatory and inhibitory functions in the brain, and that enable chemical signals to travel throughout the structure.
Kehr, J.; Yoshitake, T. Monitoring brain chemical signals by microdialysis.
In the course of this work, he has pioneered several new approaches in the fruit fly that have had important implications for mammalian neurobiology, including: the demonstration that the fruit fly has a sleep - like behavior similar to that of mammals, studies of physiological and behavioral consequences of mutations in a neurotransmitter system affecting one of the brain's principal chemical signals, studies making highly localized genetic alterations in the nervous system to alter behavior, and molecular identification of genes causing naturally occurring variation in behavior.
This state of arousal involves neurons in the fly's brain that respond to the female's chemical signal and generate self - sustaining patterns of brain activity that persist well beyond the original sensory input.
Sperry suggested that chemical signals, probably present in concentration gradients, serve as positional landmarks within the brain.
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