Snail Locomotion Research Articles

2P1-A19 カタツムリのような進行波を利用した移動ロボットの開発

2P1-A19 カタツムリのような進行波を利用した移動ロボットの開発

The Mechanism of Pedal Locomotion of Gastropod.

This paper presents a study of the relationship between the contraction on the sole surface, the shape and the forces generated by muscle for locomotion of snail (Gastropod). We observed sole surface of a moving snail to investigate the state of contraction when a sole wave is passing. Then we measured the vertical and horizontal forces generated by sole to investigate the relationship between the forces and the shape of sole surface. Based on these results observed, we proposed a model of the shape of snail's sole section. The mechanism of snail's locomotion will have a possibility to be applied to the mobility equipment which has flexibility for ground conditions and can easily turn in a house.

1317 福祉移動機器応用を目指した腹足移動機構に関する研究

1317 福祉移動機器応用を目指した腹足移動機構に関する研究

Energy constraint exerted by the parasite Schistosoma mansoni on the locomotion of its snail host, Biomphalaria glabrata

The consequences of the constraint caused by the parasite Schistosoma mansoni on the locomotory activity of its snail host, Biomphalaria glabrata, were studied during the patent period. Rates of locomotion were determined 6 times per 24-h period for juvenile and adult snails with single-miracidium infections, then compared with those of healthy snails of the same age. The locomotory activity of infected snails was the same during the day and at night, whereas control snails moved less at night than during the day. The locomotion of snails infected when immature was similar to that of the controls during the day and superior at night. The locomotion of snails infected when mature decreased regularly during patency and clearly decreased in comparison with that of healthy snails. The results are interpreted in terms of energy constraint on the mode of resource allocation of the host due to the parasite.

Effects of dopamine antagonists on snail locomotion

Dopamine antagonists which affect the ergometrine-sensitive type of dopamine receptors produce characteristic motor disorders in a land snail,Helix pomatia L.