Dictionary » P » Potentiation

Potentiation

potentiation

(Science: physiology) increase in quantal release at a synapse following repetitive stimulation. Whereas facilitation at synapses lasts a few hundred milliseconds, potentiation may last minutes to hours.

(Science: pharmacology) The synergistic action of two drugs, being greater than the sum of the effects of each used alone.

Origin: L. Potentia = power


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How are memories created?

... this that isn't known, and a lot of current theory is barely confirmed. It seems to change the membranes, initiating something called long-term potentiation (LTP).

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by Darby
Tue Jul 24, 2012 2:50 pm
 
Forum: Physiology
Topic: How are memories created?
Replies: 3
Views: 3694

Re: electric shock and memory

... or amygdala (for emotional memory). Long-term memory, on the other hand, is stored in some form of synaptic plasticity, such as long-term potentiation or long-term depression and therefore is not affected by electrical shock. LTP and LTD involve the number of receptors (AMPA receptors). ...

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by aptitude
Sun Sep 11, 2011 7:06 am
 
Forum: Physiology
Topic: electric shock and memory
Replies: 9
Views: 9806

Potentiation

Hi All! I need to describe the processes involved in the "potentiation of an action potential". While I have a fairly good understanding of the general processes involved in the firing of neurons, I'm confused as to what "potentiation" ...

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by Ray25
Fri Nov 05, 2010 5:04 pm
 
Forum: Cell Biology
Topic: Potentiation
Replies: 0
Views: 1094

Nerve Memory

... connections between nerves being involved in memory - I'm not sure that means "nerve endings," though. Check the term "long term potentiation," or "LTP," and you should find a bit of information.

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by Darby
Sat Jan 20, 2007 3:47 pm
 
Forum: Human Biology
Topic: Nerve Memory
Replies: 6
Views: 3528

Curious... about the human brain...

... understood. The things we do know is that it has to do both with the creation of new synapses, and both with a phenomenon called long-term potentiation. This long term potentiation is a process by which a neuron keeps firing impulses even after the signal that came from a synapse is over. ...

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by MrMistery
Sat Sep 02, 2006 5:22 pm
 
Forum: Human Biology
Topic: Curious... about the human brain...
Replies: 12
Views: 4664


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