Over the last 30 years, many laboratories have examined, in parallel, the feeding behaviour
of gastropod molluscs and the properties of the nervous system that give rise to this …

Learning to anticipate future events on the basis of past experience with the consequences
of one's own behavior (operant conditioning) is a simple form of learning that humans share …

Operant conditioning is a form of associative learning through which an animal learns about
the consequences of its behavior. Here, we report an appetitive operant conditioning …

The marine mollusc Aplysia californica carries out biting, swallowing, and rejection
responses using different movements of its radula, a structure that is used to grasp and …

The Aplysia multifunctional feeding central pattern generator (CPG) produces at least two
types of motor programs, ingestion and egestion, that involve two sets of radula movements …

1. We are studying the neural basis of consummatory feeding behavior in Aplysia using
intact, freely moving animals. 2. Video records show that the timing of radula closure during …

Operant conditioning is characterized by the contingent reinforcement of a designated
behavior. Previously, feeding behavior in Aplysia has been demonstrated to be modified by …

Background It is now well established that persistent nonsynaptic neuronal plasticity occurs
after learning and, like synaptic plasticity, it can be the substrate for long-term memory. What …

Aplysia feeding is striking in that it is executed with a great deal of plasticity. At least in part,
this flexibility is a result of the organization of the feeding neural network. To illustrate this …

Learning can lead to changes in the intrinsic excitability of neurons. However, the extent to
which these changes persist and the role they have in the expression of memory remain …