A change in membrane potential in the negative direction, making the cell interior more negative.
increase in the internal negativity across a cell membrane, thus increasing the voltage and moving it farther away from the threshold value
A mechanism by which a membrane potential is made more negative inside with respect to the outside of the cell. Hyperpolarization causes neurons and muscle cells to be electrically silent (see action potentials) and stabilize at a resting potential. Hyperpolarization is the result of moving positive charges from in to out of a cell which is usually the result of K+ ions moving out, but can also be achieved by moving Cl- ions into the cell.
An electrical state whereby the inside of the cell is made more negative relative to the outside than at the resting membrane potential. A neuron membrane is hyperpolarized if a stimulus increases its voltage from the resting potential of –70 mV, reducing the chance that the neuron will transmit a nerve impulse. hypertonic solution[Gk. hyper, above + tonos, tension] A solution with a greater solute concentration than another, a hypotonic solution.
Refers to any change of the membrane potential to a value that is more negative than the resting potential.
A greater (more negative) membrane potential than the resting potential.
Change of the cell's membrane potential towards increasingly negative values, Increased membrane polarization
increasing the difference. The interior become more negative or more positive--the charge is moving away from zero in one direction or the other. This occurs after action potential.
The change in membrane potential to a more negative value. See Depolarization.
An increase in the potential difference across the cell membrane of a neuron. Retinal photoreceptors differ from most other neurons in hyperpolarizing in response to stimuli.
A change in the resting potential of a membrane so the inside of a cell becomes more electronegative. (Contrast with depolarization.)
an increase in potential difference across a membrane, making the cell interior more negative that it is at rest
The movement of the transmembrane potential away from the normal resting potential and farther from 0 mV.
Hyperpolarization is any change in a cell's membrane potential that makes it more polarized. That is, hyperpolarization is an increase in the absolute value of a cell's membrane potential. Thus, any change of membrane voltage in which the membrane potential moves farther from zero, in either a positive or negative direction, is a hyperpolarization.
Hyperpolarization is the nuclear spin polarization of a material far beyond thermal equilibrium conditions. It is commonly applied to gases such as 129Xe, 3He which are then used, for instance, in hyperpolarized magnetic resonance imaging.