Complex sentence: Many studies look at spike train data gathered from the ganglion cells in the retina, since this area has the benefits of being strictly feedforward, retinotopic, and amenable to current recording granularities.
Split into simpler sentences: Many studies look at spike train data gathered from the ganglion cells in the retina. Of all the possible subset of neurons to study, this particular area has the benefits of being strictly feedforward, retinotopic, and amenable to current recording granularities.