论文信息 - Peripheral Influences on the Movement of the Legs in a Walking Insect Carausius Morosus

Peripheral Influences on the Movement of the Legs in a Walking Insect Carausius Morosus

Anterior extreme position (AEP) and posterior extreme position (PEP)of the legs of stick insects were measured during walking on a tread wheelor on a slippery glass plate. In several experiments, either protraction or retraction of a middle or hind leg was interrupted. The AEP of ot her legs was independent of a protraction interruption but PEP was displaced backward in the leg anterior to the interrupted leg. When a leg was standing on a fixed platform (interruption of retraction) no changes were found in AEP and PEP for the other legs but if the platform was slowly moved, PEP of leg on the platform was moved forward. These results disagree with several publishedhypotheses. The results suggest the hypothesis of a position-dependentthreshold value for protraction which is modulated by co-ordinating influencesfrom other legs. Note:

H. Cruse | S. Epstein

[1] G. M. Hughes. The Co-Ordination of Insect Movements , 1958 .

[2] Donald M. Wilson. Stepping Patterns in Tarantula Spiders , 1967 .

[3] K. Pearson,et al. Nervous Mechanisms Underlying Intersegmental Co-Ordination of Leg Movements During Walking in the Cockroach , 1973 .

[4] D. Graham. UNUSUAL STEP PATTERNS IN THE FREE WALKING •GRASSHOPPER NEOCONOCEPHALUS ROBUSTUS II. A CRITICAL TEST OF THE LEG INTERACTIONS UNDERLYING DIFFERENT MODELS OF HEXAPOD CO-ORDINATION , 1978 .

[5] U. Bässler. Interaction of central and peripheral mechanisms during walking in first instar stick insects, Extatosoma tiaratum , 1979 .

[6] H. Cruse. The control of the anterior extreme position of the hindleg of a walking insect, Carausius morosus , 1979 .

[7] H. Cruse. The control system of the femur tibia joint in the standing and the walking stick insect (Carausius morosus). , 1980 .

[8] U. Bässler,et al. EFFECTS OF AFFERENCE SIGN REVERSAL ON MOTOR ACTIVITY IN WALKING STICK INSECTS (CARAUSIUS MOROSUS) , 1981 .

[9] H. Cruse,et al. COORDINATED WALKING OF STICK INSECTS ON A MERCURY SURFACE , 1981 .

[10] H. Cruse,et al. The control system of the femur-tibia joint in the standing leg of a walking stick insect Carausius morosus , 1983 .