Neurosynth: Mismatch between image data and activations?

neuroimaging

#1

Hi,

Why is there a discrepancy between ‘activations’ and ‘images’ for the same study? Aren’t both supposed to be voxels in the MNI152 space

I am using the python API for neurosynth.

The code:

dataset = Dataset.load(opj(DATA_DIR, ‘neurosynth’, ‘dataset.pkl’))

activations = dataset.activations
img = dataset.get_image_data(ids=[9065511])

print img.sum()
#prints 1172

activations[activations[‘id’]==9065511].shape
#prints (10, 16)

Are activations thresholded?