// $Id: pyr_layer.gmikejan22,v 16.1 2000/03/02 14:43:39 ajay Exp $
// genesis

// pyr_layer.g 

// Make the syanpses for the pyramidal cells.
// Also make pulse generator and add to soma
// AMPA channel on apical_2, representing input from EC layer, has slower decay rate (20ms)
// than AMPA channel (2ms) on apical (p-p connections) dendrite.
ce /pyr/soma

// Make the spike generator and link it into the cell.
make_spike
setfield spike thresh {spike_threshold_value} // set in constants.g
setfield spike abs_refract 5e-3 // 5 ms
addmsg . spike INPUT Vm

// Make pulse generator
ce /pyr/soma
make_pulse
addmsg /pyr/soma/pulse /pyr/soma INJECT output

// Now do the syanpses.

ce /pyr/soma
make_GABAa_channel
addmsg GABAa_channel . CHANNEL Gk Ek
addmsg . GABAa_channel VOLTAGE Vm

ce /pyr/apical
make_GABAb_channel
make_AMPA_channel
make_NMDA_channel /pyr/apical
addmsg GABAb_channel . CHANNEL Gk Ek
addmsg . GABAb_channel VOLTAGE Vm
addmsg AMPA_channel . CHANNEL Gk Ek
addmsg . AMPA_channel VOLTAGE Vm
addmsg NMDA_channel . CHANNEL Gk Ek
addmsg . NMDA_channel VOLTAGE Vm

ce /pyr/apical_2
make_AMPA_channel
setfield AMPA_channel tau2 {100e-3} // slow decay so that K_A can be inactivated by EC input.
addmsg AMPA_channel . CHANNEL Gk Ek
addmsg . AMPA_channel VOLTAGE Vm


// Create a plane of pyramidal cells.

createmap /pyr /pyr_layer  \
	{CA3_NX} {CA3_NY} \
	-delta {CA3_SEPX} {CA3_SEPY} \
	-origin {-CA3_NX * CA3_SEPX / 2} {-CA3_NY * CA3_SEPY / 2}