Note
Click here to download the full example code
Run coordinate-based meta-analyses on 21 pain studies¶
Collection of NIDM-Results packs downloaded from Neurovault collection 1425, uploaded by Dr. Camille Maumet.
Note
Creation of the Dataset from the NIDM-Results packs was done with custom code. The Results packs for collection 1425 are not completely NIDM-Results-compliant, so the nidmresults library could not be used to facilitate data extraction.
import os
import numpy as np
from nilearn.plotting import plot_stat_map
import nimare
from nimare.tests.utils import get_test_data_path
Load Dataset¶
dset_file = os.path.join(get_test_data_path(), 'nidm_pain_dset.json')
dset = nimare.dataset.Dataset(dset_file)
mask_img = dset.masker.mask_img
MKDA density analysis¶
mkda = nimare.meta.cbma.mkda.MKDADensity(kernel__r=10)
mkda.fit(dset)
corr = nimare.correct.FWECorrector(method='montecarlo', n_iters=10, n_cores=1)
cres = corr.transform(mkda.results)
plot_stat_map(cres.get_map('logp_level-voxel_corr-FWE_method-montecarlo'),
cut_coords=[0, 0, -8], draw_cross=False, cmap='RdBu_r')
MKDA Chi2 with FDR correction¶
mkda = nimare.meta.cbma.mkda.MKDAChi2(kernel__r=10)
dset1 = dset.slice(dset.ids)
dset2 = dset.slice(dset.ids)
mkda.fit(dset1, dset2)
corr = nimare.correct.FDRCorrector(method='bh', alpha=0.001)
cres = corr.transform(mkda.results)
plot_stat_map(cres.get_map('z_desc-consistency_level-voxel_corr-FDR_method-bh'),
threshold=1.65, cut_coords=[0, 0, -8], draw_cross=False,
cmap='RdBu_r')
MKDA Chi2 with FWE correction¶
Since we’ve already fitted the Estimator, we can just apply a new Corrector to the estimator.
corr = nimare.correct.FWECorrector(method='montecarlo', n_iters=10, n_cores=1)
cres = corr.transform(mkda.results)
plot_stat_map(cres.get_map('z_desc-consistency_level-voxel_corr-FWE_method-montecarlo'),
threshold=1.65, cut_coords=[0, 0, -8], draw_cross=False,
cmap='RdBu_r')
KDA¶
kda = nimare.meta.cbma.mkda.KDA(kernel__r=10)
kda.fit(dset)
corr = nimare.correct.FWECorrector(method='montecarlo', n_iters=10, n_cores=1)
cres = corr.transform(kda.results)
plot_stat_map(cres.get_map('logp_level-voxel_corr-FWE_method-montecarlo'),
cut_coords=[0, 0, -8], draw_cross=False, cmap='RdBu_r')
ALE¶
ale = nimare.meta.cbma.ale.ALE()
ale.fit(dset)
corr = nimare.correct.FWECorrector(method='montecarlo', n_iters=10, n_cores=1)
cres = corr.transform(ale.results)
plot_stat_map(cres.get_map('logp_level-cluster_corr-FWE_method-montecarlo'),
cut_coords=[0, 0, -8], draw_cross=False, cmap='RdBu_r')