Unit responses in the metathoracic ganglion of the flying locust

• 1.

  1. Microelectrode unit recordings obtained from the metathoracic ganglia of flying locusts did not reveal any flight rhythm interneuronal pacemakers. If such units are present, they are not accessible for detailed electrophysiological examination.

• 2.

  2. The detection of units responding to tactile and visual stimulation whose impulse discharge patterns were coupled with the flight rhythm provides evidence for the diffuse nature of the neural network which generates the flight pattern.