(the first optic neuropile), and long visual fibres, which project directly to the medulla.    From Wordnik.com.  [PLoS ONE Alerts: New Articles] Reference

2+ changes in the neuropile and the neuron indicated in (C).    From Wordnik.com.  [PLoS Biology: New Articles] Reference

2+ signal from astrocytes, neurons, and neuropile was monitored.    From Wordnik.com.  [PLoS Biology: New Articles] Reference

2+ signals in neuropile were tightly correlated with the changes in the field potential observed during the seizure discharge and increased in parallel with the appearance of a fast activity at 20-30 Hz that accompanied the onset of the ictal discharge Figure 1C and 1D), whereas interictal events failed to activate astrocyte responses (.    From Wordnik.com.  [PLoS Biology: New Articles] Reference