1. Phasic Transmitter Release from Tonic Neurons
Mary J Palmer, Henrique von Gersdorff 
Neuron 
Volume 35, Issue 4, Pages (August 2002)
DOI: /S (02)

2. Figure 1 The Locust Ocellus Circuitry
The ocellus photoreceptors depolarize to light stimuli and form inhibitory synaptic contacts that release histamine onto three distinct “L” neurons (L1-3). These neurons have long (1500 μm) and thick (15 μm) axons, and they make reciprocal inhibitory connections with each other at the terminal arbors where acetylcholine is released in a phasic manner. In addition, L1-3 neurons form tonic excitatory cholinergic contacts with DN neurons (descending interneurons), which also receive excitatory synaptic input from wind-sensitive hairs on the head. The ocellus visual system is thought to play a role in stabilizing flight.
Neuron  , DOI: ( /S (02) )