Abstract
Food stimili elicit a characteristic "feeding posture", in which the animal lifts the head and relaxes the anterior part of the foot. A pair of cerebral neuron, C-PR, may function as an important element that evokes a food-arousal state. The C-PR may also mediate the feeding posture by exciting or inhibiting many types of body postural motor neurons. In addition, it has longlasting modulatory effects on the movements of the neck and the anterior foot, which were produced by the motor neurons. These effects may be caused by modulatory neurons receiving monosynaptic excitatory inputs from the C-PR.