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| 1 | +<?xml version="1.0" encoding="UTF-8"?> |
| 2 | +<channelml xmlns="http://morphml.org/channelml/schema" |
| 3 | + xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" |
| 4 | + xmlns:meta="http://morphml.org/metadata/schema" |
| 5 | + xsi:schemaLocation="http://morphml.org/channelml/schema http://www.neuroml.org/NeuroMLValidator/NeuroMLFiles/Schemata/v1.8.0/Level2/ChannelML_v1.8.0.xsd" |
| 6 | + units="Physiological Units"> |
| 7 | + |
| 8 | + <meta:notes>ChannelML file containing a single Channel description</meta:notes> |
| 9 | + |
| 10 | + <channel_type name="hd" density="yes"> |
| 11 | + |
| 12 | + <status value="stable"> |
| 13 | + <meta:comment>Agreement of generated NEURON and GENESIS to original NEURON mod. Compared voltage and l traces on single comp with current pulse</meta:comment> |
| 14 | + <meta:contributor> |
| 15 | + <meta:name>Padraig Gleeson</meta:name> |
| 16 | + </meta:contributor> |
| 17 | + </status> |
| 18 | + |
| 19 | + <meta:notes>H current. Comment from original mod: I-h channel from Magee 1998 for distal dendrites</meta:notes> |
| 20 | + |
| 21 | + <meta:authorList> |
| 22 | + <meta:modelAuthor> |
| 23 | + <meta:name>Michele Migliore</meta:name> |
| 24 | + <meta:comment>Cited implementer according to ModelDB</meta:comment> |
| 25 | + </meta:modelAuthor> |
| 26 | + <meta:modelTranslator> |
| 27 | + <meta:name>Padraig Gleeson</meta:name> |
| 28 | + <meta:institution>UCL</meta:institution> |
| 29 | + <meta:email>p.gleeson - at - ucl.ac.uk</meta:email> |
| 30 | + </meta:modelTranslator> |
| 31 | + </meta:authorList> |
| 32 | + |
| 33 | + <meta:publication> |
| 34 | + <meta:fullTitle>Migliore M, Ferrante M, Ascoli GA (2005) Signal propagation in oblique dendrites of CA1 pyramidal cells. J Neurophysiol 94:4145-4155</meta:fullTitle> |
| 35 | + <meta:pubmedRef>http://www.ncbi.nlm.nih.gov/pubmed/16293591</meta:pubmedRef> |
| 36 | + </meta:publication> |
| 37 | + |
| 38 | + <meta:modelDBref> |
| 39 | + <meta:modelName>CA1 pyramidal neuron: signal propagation in oblique dendrites (Migliore et al 2005)</meta:modelName> |
| 40 | + <meta:uri>http://senselab.med.yale.edu/ModelDB/ShowModel.asp?model=55035</meta:uri> |
| 41 | + </meta:modelDBref> |
| 42 | + |
| 43 | + <parameters> |
| 44 | + <parameter name="vhalfl" value ="-81"/> |
| 45 | + </parameters> |
| 46 | + |
| 47 | + <current_voltage_relation cond_law="ohmic" ion="hd" default_gmax="0.05" default_erev="-30"> |
| 48 | + |
| 49 | + <q10_settings q10_factor="4.5" experimental_temp="33"/> |
| 50 | + |
| 51 | + <gate name="l" instances="1"> |
| 52 | + <closed_state id="l0"/> |
| 53 | + <open_state id="l" fraction="1"/> |
| 54 | + |
| 55 | + <!-- As taken from the mod file |
| 56 | + <transition name="alpha" from="l0" to="l" expr_form="exponential" rate="1" scale="12.025" midpoint="-75" /> |
| 57 | + <transition name="beta" from="l" to="l0" expr_form="exponential" rate="1" scale="30.06253" midpoint="-75" /> |
| 58 | + <time_course name="tau" from="l0" to="l" expr_form="generic" expr="beta/(0.011 * (1 + alpha)) " />--> |
| 59 | + |
| 60 | + <time_course name="tau" from="l0" to="l" expr_form="generic" expr="(exp (0.033264 * (v - (-75))))/(0.011 * (1 + (exp (0.08316 * (v - (-75)))))) " /> |
| 61 | + |
| 62 | + <steady_state name="inf" from="l0" to="l" expr_form="generic" expr="1/(1 + (exp (- (v-(vhalfl))/ (-8) )) )" /> |
| 63 | + |
| 64 | + </gate> |
| 65 | + </current_voltage_relation> |
| 66 | + |
| 67 | + <impl_prefs> |
| 68 | + <comment>Suggesting using a large table of precomputed rate equation values since original mod didn't use any table, i.e. used continuous values</comment> |
| 69 | + <table_settings max_v="100" min_v="-100" table_divisions="2000"/> |
| 70 | + </impl_prefs> |
| 71 | + |
| 72 | + </channel_type> |
| 73 | +</channelml> |
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