def I_networks(landscape,
nrow,
ncol,
ncon,
kappa,
theta,
shift=0,
seed=0,
**kwargs):
np.random.seed(seed)
npop = nrow * ncol
if landscape['mode'] != 'symmetric':
move = cl.move(nrow)
ll = cl.__dict__[landscape['mode']](nrow, landscape.get('specs', {}))
conmat = []
for ii in range(npop):
targets, delay = lcrn.lcrn_gamma_targets(ii, nrow, ncol, nrow, ncol,
ncon, kappa, theta)
if landscape['mode'] != 'symmetric': # asymmetry
targets = (targets + shift * move[ll[ii] % len(move)]) % npop
targets = targets[targets != ii] # no selfconnections
hist_targets = np.histogram(targets, bins=range(npop + 1))[0]
conmat.append(hist_targets)
return np.array(conmat)
def EI_networks(landscape,
nrowE,
ncolE,
nrowI,
ncolI,
p,
stdE,
stdI,
shift=0,
seed=0,
**kwargs):
np.random.seed(seed)
npopE = nrowE * ncolE
npopI = nrowI * ncolI
if landscape['mode'] != 'symmetric':
move = cl.move(nrowE)
ll = cl.__dict__[landscape['mode']](nrowE, landscape.get('specs', {}))
conmatEE, conmatEI, conmatIE, conmatII = [], [], [], []
for idx in range(npopE):
# E -> E
source = idx, nrowE, ncolE, nrowE, ncolE, int(p * npopE), stdE, False
targets, delay = lcrn.lcrn_gauss_targets(*source)
if landscape['mode'] != 'symmetric': # asymmetry
targets = (targets + shift * move[ll[idx] % len(move)]) % npopE
targets = targets[targets != idx]
hist_targets = np.histogram(targets, bins=range(npopE + 1))[0]
conmatEE.append(hist_targets)
# E -> I
source = idx, nrowE, ncolE, nrowI, ncolI, int(p * npopI), stdI, False
targets, delay = lcrn.lcrn_gauss_targets(*source)
hist_targets = np.histogram(targets, bins=range(npopI + 1))[0]
conmatEI.append(hist_targets)
for idx in range(npopI):
# I -> E
source = idx, nrowI, ncolI, nrowE, ncolE, int(p * npopE), stdE, False
targets, delay = lcrn.lcrn_gauss_targets(*source)
hist_targets = np.histogram(targets, bins=range(npopE + 1))[0]
conmatIE.append(hist_targets)
# I -> I
source = idx, nrowI, ncolI, nrowI, ncolI, int(p * npopI), stdI, False
targets, delay = lcrn.lcrn_gauss_targets(*source)
targets = targets[targets != idx]
hist_targets = np.histogram(targets, bins=range(npopI + 1))[0]
conmatII.append(hist_targets)
return np.array(conmatEE), np.array(conmatEI), np.array(
conmatIE), np.array(conmatII)
noise = nest.Create('noise_generator')
# Create recording devices
sd = nest.Create('spike_detector',
params={
'start': p.recstart,
'to_file': True,
'label': output_file,
})
"""
Connect nodes
"""
landscape = cl.__dict__[p.landscape['mode']](p.nrow,
p.landscape.get('specs', {}))
move = cl.move(p.nrow)
offset = pop[0]
# Connect neurons to neurons
for ii in range(npop):
source = ii, p.nrow, p.ncol, p.nrow, p.ncol, p.ncon, p.kappa, p.theta
targets, delay = lcrn.lcrn_gamma_targets(*source)
if landscape is not None: # asymmetry
targets = (targets + p.shift * move[landscape[ii] % len(move)]) % npop
# no selfconnections
targets = targets[targets != ii]
nest.Connect([pop[ii]], (targets + offset).tolist(),
syn_spec={'weight': p.Ji})
# Connect noise input device to all neurons
nest.Connect(noise, pop)
"""
Get spatial connection landscape
"""
# landscape = None # Symmetric
# landscape = cl.random(nrowE, {'seed': 0}) # Homogeneous
# landscape = cl.homogeneous(nrowE, {'phi': 3}) # Homogeneous
# landscape = cl.Perlin(nrowE, {'size': 4}) # Perlin
landscape = cl.Perlin_uniform(nrowE, {'size': 4, 'base': 0}) # Perlin uniform
"""
Connect neurons
"""
move = cl.move(nrowE)
offsetE = popE[0]
offsetI = popI[0]
p = 0.05 # 0.05 - 0.1
stdE = 12
stdI = 9 # 9 - 11
shift = 1 # 1 - 3
Jx = 10.0
g = 8 # 4 - 8
syn_specE = {'weight': Jx}
for idx in range(npopE):
# E-> E
def create_connectivity_EI_random_dir(neuron_parameters,
connectivity_parameters,
save_AM_parameters):
[
nrowE, ncolE, nrowI, ncolI, nE, nI, nN, neuron_type, neuron_paramsE,
neuron_paramsI
] = neuron_parameters
[landscape_type, landscape_size, asymmetry, p, shift, std, alpha,
seed] = connectivity_parameters
[pEE, pEI, pIE, pII] = p
[stdEE, stdEI, stdIE, stdII] = std
[AM_address, fname] = save_AM_parameters
if asymmetry[0] == 'E':
nrowL = nrowE
else:
nrowL = nrowI
if asymmetry[-1] == 'E':
nrowM = nrowE
else:
nrowM = nrowI
move = cl.move(nrowM)
if landscape_type == 'symmetric':
landscape = None
elif landscape_type == 'random':
landscape = cl.random(nrowL, {'seed': 0})
elif landscape_type == 'homogenous':
landscape = cl.homogeneous(nrowL, {'phi': 3})
elif landscape_type == 'perlin':
landscape = cl.Perlin(nrowL, {'size': int(landscape_size)})
elif landscape_type == 'perlinuniform':
landscape = cl.Perlin_uniform(nrowL, {
'size': int(landscape_size),
'base': seed
})
ran_AM = np.zeros((nN, nN))
dir_AM = np.zeros((nN, nN))
[alphaEE, alphaEI, alphaIE, alphaII] = [0, 0, 0, 0]
if asymmetry == 'EE':
alphaEE = alpha
elif asymmetry == 'EI':
alphaEI = alpha
elif asymmetry == 'IE':
alphaIE = alpha
elif asymmetry == 'II':
alphaII = alpha
for idx in range(nE):
targets = []
if (asymmetry == 'EE') and (landscape is not None):
targets, delays = lcrn.lcrn_gauss_targets(idx, nrowE, ncolE, nrowE,
ncolE,
int(pEE * nE * alphaEE),
stdEE)
targets = (targets + shift * move[landscape[idx] % len(move)]) % nE
targets = targets[targets != idx].astype(int)
dir_AM[idx, targets] = 1.
r_targets = get_random_targets(idx, nrowE, ncolE, nrowE, ncolE,
int(pEE * nE * (1 - alphaEE)))
r_targets = np.setdiff1d(r_targets, targets)
ran_AM[idx, r_targets] = 1.
targets = []
if (asymmetry == 'EI') and (landscape is not None):
targets, delays = lcrn.lcrn_gauss_targets(idx, nrowE, ncolE, nrowI,
ncolI,
int(pEI * nI * alphaEI),
stdEI)
targets = (targets + shift * move[landscape[idx] % len(move)]) % nI
dir_AM[idx, targets + nE] = 1.
r_targets = get_random_targets(idx, nrowE, ncolE, nrowI, ncolI,
int(pEI * nI * (1 - alphaEI)))
r_targets = np.setdiff1d(r_targets, targets)
ran_AM[idx, r_targets + nE] = 1.
for idx in range(nI):
targets = []
if (asymmetry == 'IE') and (landscape is not None):
targets, delays = lcrn.lcrn_gauss_targets(idx, nrowI, ncolI, nrowE,
ncolE,
int(pIE * nE * alphaIE),
stdIE)
targets = (targets + shift * move[landscape[idx] % len(move)]) % nI
dir_AM[idx + nE, targets] = 1.
r_targets = get_random_targets(idx, nrowI, ncolI, nrowE, ncolE,
int(pIE * nE * (1 - alphaIE)))
r_targets = np.setdiff1d(r_targets, targets)
ran_AM[idx + nE, r_targets] = 1.
targets = []
if (asymmetry == 'II') and (landscape is not None):
targets, delays = lcrn.lcrn_gauss_targets(idx, nrowI, ncolI, nrowI,
ncolI,
int(pII * nI * alphaII),
stdII)
targets = (targets + shift * move[landscape[idx] % len(move)]) % nI
targets = targets[targets != idx].astype(int)
dir_AM[idx + nE, targets + nE] = 1.
r_targets = get_random_targets(idx, nrowI, ncolI, nrowI, ncolI,
int(pII * nI * (1 - alphaII)))
r_targets = np.setdiff1d(r_targets, targets)
ran_AM[idx + nE, r_targets + nE] = 1.
print('Multiple connections')
print(np.where(ran_AM + dir_AM > 1.))
sparse.save_npz(AM_address + fname + 'random_rAM',
sparse.coo_matrix(ran_AM))
sparse.save_npz(AM_address + fname + 'random_dAM',
sparse.coo_matrix(dir_AM))
sparse.save_npz(AM_address + fname + 'landscape',
sparse.coo_matrix(landscape))
return [ran_AM, dir_AM, landscape, nrowL]
def create_connectivity_EI(neuron_parameters, connectivity_parameters,
save_AM_parameters):
[
nrowE, ncolE, nrowI, ncolI, nE, nI, nN, neuron_type, neuron_paramsE,
neuron_paramsI
] = neuron_parameters
[landscape_type, landscape_size, asymmetry, p, std, shift,
seed] = connectivity_parameters
[pEE, pEI, pIE, pII] = p
[stdEE, stdEI, stdIE, stdII] = std
[AM_address, fname] = save_AM_parameters
if asymmetry[0] == 'E':
nrowL = nrowE
else:
nrowL = nrowI
if asymmetry[-1] == 'E':
nrowM = nrowE
else:
nrowM = nrowI
move = cl.move(nrowM)
if landscape_type == 'symmetric':
landscape = None
elif landscape_type == 'random':
landscape = cl.random(nrowL, {'seed': 0})
elif landscape_type == 'homogenous':
landscape = cl.homogeneous(nrowL, {'phi': 3})
elif landscape_type == 'perlin':
landscape = cl.Perlin(nrowL, {'size': int(landscape_size)})
elif landscape_type == 'perlinuniform':
landscape = cl.Perlin_uniform(nrowL, {
'size': int(landscape_size),
'base': seed
})
AM = np.zeros((nN, nN))
for idx in range(nE):
targets, delays = lcrn.lcrn_gauss_targets(idx, nrowE, ncolE, nrowE,
ncolE, int(pEE * nE), stdEE)
if asymmetry == 'EE':
if landscape is not None:
targets = (targets +
shift * move[landscape[idx] % len(move)]) % nE
targets = targets[targets != idx].astype(int)
AM[idx, targets] = 1.
targets, delays = lcrn.lcrn_gauss_targets(idx, nrowE, ncolE, nrowI,
ncolI, int(pEI * nI), stdEI)
if asymmetry == 'EI':
if landscape is not None:
targets = (
(targets + shift * move[landscape[idx] % len(move)]) %
nI).astype(int)
AM[idx, targets + nE] = 1.
for idx in range(nI):
targets, delays = lcrn.lcrn_gauss_targets(idx, nrowI, ncolI, nrowE,
ncolE, int(pIE * nE), stdIE)
if asymmetry == 'IE':
if landscape is not None:
targets = (
(targets + shift * move[landscape[idx] % len(move)]) %
nE).astype(int)
AM[idx + nE, targets] = 1.
targets, delays = lcrn.lcrn_gauss_targets(idx, nrowI, ncolI, nrowI,
ncolI, int(pII * nI), stdII)
if asymmetry == 'II':
if landscape is not None:
targets = (targets +
shift * move[landscape[idx] % len(move)]) % nI
targets = targets[targets != idx].astype(int)
AM[idx + nE, targets + nE] = 1.
sparse.save_npz(AM_address + fname + 'normalAM', sparse.coo_matrix(AM))
sparse.save_npz(AM_address + fname + 'landscape',
sparse.coo_matrix(landscape))
return [AM, landscape, nrowL]
