Changeset 413

Timestamp:

07/15/08 14:31:49 (3 months ago)

Author:

apdavison

Message:

First attempt to provide an interface for injecting arbitrary currents into cells (see #38).

Usage example:

    cell = create(IF_curr_exp)
   current_source1 = DCSource(amplitude=0.3, start=20, stop=80)
   current_source2 = StepCurrentSource(times=[20,40,60,80], amplitudes=[0.3,-0.3,0.3,0.0])

  cell.inject(current_source1)            # two alternatives
  current_source2.inject_into([cell]) 

DCSource is available in the nest2 and neuron2 modules, StepCurrentSource is only available in nest2 for the time being. It should be fairly straightforward to add ACSource and NoisyCurrentSource, etc.

Please send feedback!

Files:

• trunk/src/common.py (modified) (2 diffs)
• trunk/src/nest2/__init__.py (modified) (1 diff)
• trunk/src/nest2/electrodes.py (added)
• trunk/src/neuron2/__init__.py (modified) (1 diff)
• trunk/src/neuron2/cells.py (modified) (1 diff)
• trunk/src/neuron2/electrodes.py (added)

trunk/src/common.py

@@ -101 +101 @@
-    
-    non_parameter_attributes = ('parent', '_cellclass', 'cellclass',
-
+
+
-    
-    def __init__(self):
@@ -203 +204 @@
-    position = property(_get_position, _set_position)
-      
-
-
+
+
+
+
-
-def distance(src, tgt, mask=None, scale_factor=1.0, offset=0.0,

trunk/src/nest2/__init__.py

@@ -15 +15 @@
-from pyNN.nest2.connectors import *
-from pyNN.nest2.synapses import *
+from pyNN.nest2.electrodes import *
-Set = set
-

trunk/src/neuron2/__init__.py

@@ -13 +13 @@
-from pyNN.neuron2.connectors import *
-from pyNN.neuron2.synapses import *
+from pyNN.neuron2.electrodes import *
-
-from math import *

trunk/src/neuron2/cells.py

@@ -177 +177 @@
-        self.insert('IF_BG5')
-        self.seg.IF_BG5.surf = self.area()
+        self.source = neuron.NetCon(source=None, target=None, section=self,
+                                    position=0.5)
-    
-    v_thresh = _new_property('seg.IF_BG5', 'Vtr')