Encyclopedia of Pain

2007 Edition

Afterhyperpolarisation

Reference work entry
DOI: https://doi.org/10.1007/978-3-540-29805-2_127

Synonyms

AHP

Definition

For many neuronal cells, an action potential or a burst of action potentials is followed by a hyperpolarisation, where the neuronal membrane potential is lower than the neuron's normal resting membrane potential. In various models, different parts of this AHP with different time constants and different pharmacology have been described and molecular mechanisms, most of them different potassium channels, have been suggested.

 Mechano-Insensitive C-Fibres, Biophysics

 Molecular Contributions to the Mechanism of Central Pain

Copyright information

© Springer-Verlag Berlin Heidelberg 2007