News tagged with neurotransmitter

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

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
popularity 4.9 / 5 (8) | comments 0 | with audio podcast

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

Why your brain tires when exercising

A marathon runner approaches the finishing line, but suddenly the sweaty athlete collapses to the ground. Everyone probably assumes that this is because he has expended all energy in his muscles. What few people know is that ...

Mar 04, 2013
popularity 4.3 / 5 (3) | comments 1 | with audio podcast

Birth gets the brain ready to sense the world

Neurons that process sensory information such as touch and vision are arranged in precise, well-characterized maps that are crucial for translating perception into understanding. A study published by Cell ...

Oct 14, 2013
popularity 4.7 / 5 (7) | comments 1 | with audio podcast

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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