[Neuroscience] Re: Explaination of the direction of field potentials
connelly.bill at gmail.com
Tue Jun 6 23:29:34 EST 2006
> This may seem like a very simply question, but I've heard two different
> electrophysiologists (both of whom publish in fancy journals as a
> matter of course) give two different explanations as to why field
> potentials of action potentials recorded from a cell body region (e.g.
> Stratum Pyramidale of CA1) are positive, while field potentials caused
> by dendritic excitation (e.g. Stratum Radiatum of CA1) are negative.
> What is your understanding of this?
Correction: Why is the field potential in stratum pyramidale that is
NOT the action potential, i.e. the EPSP, positive, while the EPSP
recorded in the dentrites negative?
More information about the Neur-sci