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Chapter 2: Columns

Columns form a container for the Layers

Column Shells

KeywordValueDescription
COLUMN_SHELL
N/A
Indicates the start of a Column Shell definition area
TYPE
name(string)
The name which is used to refer to this object
WIDTH
value(real)
The width (or radius) of the column (units?)
HEIGHT
value(real)
The height of the column (units?)
LOCATION
x(real)
y(real)
The x, y coordinates of the column
END_COLUMN_SHELL
N/A
Indicates the end of a column shell definition section

Example

COLUMN_SHELL
        TYPE                    VIshell
        WIDTH                   300
        HEIGHT                  800
        LOCATION                0               800
END_COLUMN_SHELL

Fill Columns

KeywordValueDescription
COLUMN
N/A
Indicates the start of a Column fill section
TYPE
name(string)
The name which will be used to refer to this object
COLUMN_SHELL
name(string)
The name of the column shell which this column will use
LAYER_TYPE
name(string)
The name of a layer which will be present in this column
CONNECT
Layer(string)
CellType(string)
Compartment(string)
Layer(string)
CellType(string)
Compartment(string)
SynapseType(string)
Probability(real)
Speed(real)
Synapse connections between Layers. Synapse connections of the type specified are formed from the source Layer, CellType, Compartment (first set) to the destination Layer, CellType, Compartment (second set). Connections are made randomly with the probability specified. The speed indicates how quickly the destination cell will receive a signal from the source cell (units?).
END_COLUMN
N/A
Indicates the end of a Column fill section

Example

COLUMN
	TYPE			AI1
	COLUMN_SHELL		AIshell
	LAYER_TYPE		Lay3
	LAYER_TYPE		Lay4
	CONNECT
                                Lay4		Exc-cNAC	s1
                                Lay3		Exc-cNAC	s1
                                ExcF2Hebb0	0.1		3
END_COLUMN
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Last updated Monday 6/5/2006