PyOpenWorm.neuron module

class PyOpenWorm.neuron.ConnectionProperty(**kwargs)

Bases: PyOpenWorm.pProperty.Property

A representation of the connection between neurons. Either a gap junction or a chemical synapse

TODO: Add neurotransmitter type. TODO: Add connection strength

get(pre_post_or_either='pre', **kwargs)

Get a list of connections associated with the owning neuron.

Parameters:

pre_post_or_either: str

What kind of connection to look for. ‘pre’: Owner is the source of the connection ‘post’: Owner is the destination of the connection ‘either’: Owner is either the source or destination of the connection

Returns:

list of Connection

set(conn, **kwargs)

Add a connection associated with the owner Neuron

Parameters:

conn : PyOpenWorm.connection.Connection

connection associated with the owner neuron

Returns:

A PyOpenWorm.neuron.Connection

class PyOpenWorm.neuron.Neighbor(**kwargs)

Bases: PyOpenWorm.pProperty.Property

get(**kwargs)

Get a list of neighboring neurons.

Parameters:

See parameters for PyOpenWorm.connection.Connection

Returns:

list of Neuron

set(other, **kwargs)

Set the value of this property

Derived classes must override.

class PyOpenWorm.neuron.Neuron(name=False, **kwargs)

Bases: PyOpenWorm.cell.Cell

A neuron.

See what neurons express some neuropeptide

Example:

# Grabs the representation of the neuronal network
>>> net = P.Worm().get_neuron_network()

# Grab a specific neuron
>>> aval = net.aneuron('AVAL')

>>> aval.type()
set([u'interneuron'])

#show how many connections go out of AVAL
>>> aval.connection.count('pre')
77

>>> aval.name()
u'AVAL'

#list all known receptors
>>> sorted(aval.receptors())
[u'GGR-3', u'GLR-1', u'GLR-2', u'GLR-4', u'GLR-5', u'NMR-1', u'NMR-2', u'UNC-8']

#show how many chemical synapses go in and out of AVAL
>>> aval.Syn_degree()
90

Parameters:

name : string

The name of the neuron.

Attributes:

type : DatatypeProperty

The neuron type (i.e., sensory, interneuron, motor)

receptor : DatatypeProperty

The receptor types associated with this neuron

innexin : DatatypeProperty

Innexin types associated with this neuron

neurotransmitter : DatatypeProperty

Neurotransmitters associated with this neuron

neuropeptide : DatatypeProperty

Name of the gene corresponding to the neuropeptide produced by this neuron

neighbor : Property

Get neurons connected to this neuron if called with no arguments, or with arguments, state that neuronName is a neighbor of this Neuron

connection : Property

Get a set of Connection objects describing chemical synapses or gap junctions between this neuron and others

GJ_degree()

Get the degree of this neuron for gap junction edges only

Returns:total number of incoming and outgoing gap junctions Return type:int

Syn_degree()

Get the degree of this neuron for chemical synapse edges only

Returns:total number of incoming and outgoing chemical synapses Return type:int

get_incidents(type=0)

Get neurons which synapse at this neuron