Learning in an isolated prothoracic insect ganglion

摘要: Abstract 1. The capacity of the isolated prothoracic ganglion to learn was investigated in adult male cockroaches, Periplaneta americana. head removed and posterior connectives were severed. Such a ‘miniature’ system found capable demonstrating avoidance learning. 2. response could be achieved by number different leg positions appeared maintained proprioceptive feedback. predominant involved flexion coxal-trochanter joint accompanied tibial extension. 3. In an additional group animals they given same training testing procedures as those with ganglion. results showed that long-term generalized excitability changes occur from effects shock on peripheral neuromuscular apparatus itself. however quite stereoptyped none complexity seen intact No P-R difference obtained.