News tagged with neurotransmitter

Related topics: brain , nerve cells , neurons , parkinson s disease , brain function

Dopamine not about pleasure (anymore)

(Medical Xpress)—To John Salamone, professor of psychology and longtime researcher of the brain chemical dopamine, scientific research can be very slow-moving.

Dec 03, 2012
popularity 4.9 / 5 (14) | comments 1 | with audio podcast

Delving deep into the brain

Launched in 2013, the national BRAIN Initiative aims to revolutionize our understanding of cognition by mapping the activity of every neuron in the human brain, revealing how brain circuits interact to create ...

May 01, 2014
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Researchers clock the speed of brain signals

Two studies featuring research from Weill Cornell Medical College have uncovered surprising details about the complex process that leads to the flow of neurotransmitters between brain neurons -- a dance of ...

Jun 22, 2011
popularity 4.4 / 5 (14) | comments 4 | with audio podcast

Coffee drinking tied to lower risk of suicide

Drinking several cups of coffee daily appears to reduce the risk of suicide in men and women by about 50 percent, according to a new study by researchers at the Harvard School of Public Health (HSPH). The st ...

Jul 25, 2013
popularity 4.4 / 5 (10) | comments 3 | with audio podcast

Is this peptide a key to happiness?

(Medical Xpress)—What makes us happy? Family? Money? Love? How about a peptide? The neurochemical changes underlying human emotions and social behavior are largely unknown. Now though, for the first time in humans, scientists ...

Mar 07, 2013
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Long-term memory in the cortex

(Medical Xpress)—'Where' and 'how' memories are encoded in a nervous system is one of the most challenging questions in biological research. The formation and recall of associative memories is essential ...

Aug 27, 2013
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A new role for sodium in the brain

Researchers at McGill University have found that sodium – the main chemical component in table salt – is a unique "on/off" switch for a major neurotransmitter receptor in the brain. This receptor, known ...

Aug 20, 2013
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Neurotransmitter

Neurotransmitters are endogenous chemicals which relay, amplify, and modulate signals between a neuron and another cell. Neurotransmitters are packaged into synaptic vesicles that cluster beneath the membrane on the presynaptic side of a synapse, and are released into the synaptic cleft, where they bind to receptors in the membrane on the postsynaptic side of the synapse. Release of neurotransmitters usually follows arrival of an action potential at the synapse, but may follow graded electrical potentials. Low level "baseline" release also occurs without electrical stimulation.

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