www.neuron.yale.edu

On 12/10/2004 Vasco Galhardo <galhardo@med.up.pt> wrote: I believe you are speaking about a morphometric measure of dendritic branching that is usually called Sholl Technique. You can see the original description in his paper: Sholl DA (1953) Dendritic organization in the neurons of the visual and m...

On 12/10/2005 Mickey London <m.london@ucl.ac.uk> wrote: Please see: http://www.ifi.unizh.ch/~andel/neurowiki/nw.cgi?ShollAnalysis Sholl analysis is one quantitative measure of the size and shape of a dendritic tree. A series of concentric circles is drawn around the center of a neuron. Then, for eac...

On 12/10/2004 Guy Major <gmajor@Princeton.EDU> wrote: scholl plots are morphological branching diagrams with dendrites straightened out we have made physical and "morphotonic" (resistivity free length) and electrotonic versions see Bannister Larkman 1995 Larkman et al J Comp Neurol 1992 *9...

On 12/10/2004 Kazuyuki Ohgushi <ogushi@brain.imi.i.u-tokyo.ac.jp> wrote:
Could anyone tell me the meaning of "Sholl distance" ?
There is no web page using "Sholl distance" in Japanese.

On 12/3/2004 Nigel Goddard <Nigel.Goddard@ed.ac.uk> wrote: You might be able to use the NEOSIM parallel simulator (http://www.neosim.org). It allows you to construct a network and run it on a parallel machine, where each neuron is specified as a NEURON model. NEOSIM handles delivering spikes from on...

On 12/2/2004 Bill Lytton <billl@neurosim.downstate.edu> wrote: Mike Hines has developed a local variable time step method which offers substantial speed ups for network simulations. Different neurons have different integrators which allow them to simulate forward at their own rates. He and I have a ...

On 12/1/2004 Maciej Lazarewicz <mlazarew@seas.upenn.edu> wrote: A year or so ago, with help of Dr. Hines, we started to develop the NEURON code capable of using multiple processors for simulations of large single cell models or network of cells connected by gap junctions. We got the first working im...

On 12/1/2004 Ulf Knoblich <knoblich@csail.mit.edu> asked: we're thinking about simulating a large network of "biological" neurons (as opposed to "artificial" ones), i.e. neurons with membrane currents etc. Has anyone ever tried to distribute computations over a cluster using NEUR...

A variable must be declared to be an objref before it can be used as an objref. Objrefs must be declared at the top level of the interpreter. Statements that appear within a proc or func are not at the top level of the interpreter. So this works objref fap proc foo() { fap = new Classname() } but th...

On 11/30/2005 Michael Hines <michael.hines@yale.edu> replied: I generally use the shell feature called a "here" script. i.e nrniv funcdef.hoc - << here foo(p1, p2) here The sh man page states: Here Documents This type of redirection instructs the shell to read input from the current source...

On 11/30/2004 Jose Ambros-Ingerson <jose@kiubo.net> wrote: It would be very convenient to be able to run nrniv from a shell script and be able to execute a function call. A line in this script would look something like: $ nrniv funcdef.hoc -e "foo(p1,p2)" which would mean "load file f...

There are several ways to make pseudorandom sequences available to mechanisms. The "best" way depends on the details of what you want to do. For example, if all you need is a point source of noisy current, there's no need to write any NMODL code at all. Just use the Random class's play() m...

On 4/21/2005 Luca Finelli <lfinelli@salk.edu> asked:
What's the best way to have a random number generator available
inside a mod file (can one use the syntax for Random in hoc files?).

This stuff libpvm [pid3009] /tmp/pvmd.501: No such file or directory libpvm [pid3009] /tmp/pvmd.501: No such file or directory libpvm [pid3009] /tmp/pvmd.501: No such file or directory libpvm [pid3009]: pvm_parent(): Can't contact local daemon is irrelevant unless you are using PVM to implement a wo...

I get the following error when trying to save a vector to a file. first instance of A first instance of k1 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 libpvm [pid3009] /tmp/pvmd.501: No such file or directory libpvm [pid3009] /tmp/pvmd.501: No such file or directory libpvm [pid3009] /tmp/pvmd.501: No such file ...