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Biol Bull 172: 83-88. (February 1987)
© 1987 Marine Biological Laboratory
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LOSS AND RECOVERY OF LOCOMOTOR BEHAVIOR AFTER CNS LESIONS IN THE SNAIL MELAMPUS BIDENTATUS

KEITH SNYDER 1 and STACIA MOFFETT 1

1 Department of Zoology, Washington State University, Pullman, Washington 99164-4220

To analyze neural pathways underlying the control of locomotion in the snail Melampus bidentatus, we lesioned connectives and commissures involved in locomotor control. The results suggest the presence of an independent oscillator in each pedal ganglion which is connected primarily via the pedal commissure. The bilaterally paired cerebropedal and cerebropleural connectives carry redundant information concerned with initiation of locomotion. In the 2-4 weeks after lesions were made, the snails usually regained locomotor coordination.

Submitted on June 25, 1986
Accepted on October 28, 1986






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