Mechanisms for turn alternation in woodlice (Porcellio scaber): The role of bilaterally asymmetrical leg movements

Hughes, Robert N.

doi:10.3758/bf03200018

Cited by 27 publications

(18 citation statements)

References 16 publications

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“…These differential results suggest that the mechanisms that underlay SAB and turn alternation might indeed be different as suggested earlier by Hughes (1985Hughes ( , 1989. Under this rationale, Artemia sp.…”

Section: Discussionmentioning

confidence: 52%

“…According to his conceptualization, SAB is the result of active choices between exogenous stimuli based on the differential familiarity of the organism with these stimuli based on its prior experience. The turn alternation, on the other hand, was claimed to rely primarily on the proprioceptive cues gathered from previous responses of the organism (Hughes, 1985).…”

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confidence: 99%

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Continuous Spontaneous Alternation and Turn Alternation in Artemia sp.

Çarkoğlu¹,

Yılmaz²,

Balcı

2015

IJCP

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Free-running spontaneous alternation refers to the animal’s tendency to prefer the least recently visited locations in successive spatial choices, which is attributed to the animals’ choice between stimuli based on prior experience. Turn alternation, which is observed in directional choices preceded by a forced turn in one direction, also reflects the animals’ tendency to alternate between directional choices but this tendency has been assumed to rely on other cues (e.g., proprioceptive cues) derived from the prior responses (e.g., forced turn in one direction). Based on previous studies, the turn alternation appears to rely on more primitive (lower-form) information features and to be a more frequently observed empirical phenomenon than the spontaneous alternation. We investigated these two behavioral alternation tendencies in Artemia sp. Experiment 1 tested the continuous spontaneous alternation (cSAB) performance of Artemia sp. in two different mazes: t-maze (three options) and plus maze (four options). Experiment 2 tested the turn alternation performance of Artemia sp. counter-balancing the direction of initial forced-turn between subjects. Our results showed that Artemia sp. had nearly chance level spontaneous alternation performance in the t-maze and plus maze whereas a higher than chance level turn alternation performance. These results support the ubiquity of turn alternation tendency across species and point at the lack of spontaneous alternation in Artemia sp.

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Section: Discussionmentioning

confidence: 52%

mentioning

confidence: 99%

Continuous Spontaneous Alternation and Turn Alternation in Artemia sp.

Çarkoğlu¹,

Yılmaz²,

Balcı

2015

IJCP

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“…How did the three individual earthworms in which turn alternation was affected by the stimulus recognize the state of the environment they were in? Turn alternation is advantageous for escaping [ 28 ]. When an animal tries to escape from an enemy or a harmful place, it is more advantageous to flee in a linear manner.…”

Section: Discussionmentioning

confidence: 99%

Earthworm individualities when facing a conflict between turn alternation and aversive learning

2018

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An individual’s personality develops through a combination of experiences and parental inheritance. When faced with a conflict, will an individual take an innate behavior or a learned one? In such situations, individuality will manifest itself. Here, we focused on turn alternation behavior, which is a habitual tendency to turn in the direction opposite the preceding turn, in earthworms (Eisenia fetida) and examined how this behavior is affected by an aversive stimulus. Of 10 earthworms, 3 were affected by the stimulus. Turn alternation deteriorated in two worms, one of which showed anti-turn alternation behavior, whereas the remaining worm showed an enhanced tendency toward turn alternation. Earthworms have a relatively simple nervous system. This study opens the door to investigate the neuronal basis for individuality that emerges between nature and nurture.

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“…It is known that pill bugs have a habit termed turn alternation, following which they turn to the right (left), left (right), and so on [20]. The mechanism underlying turn alternation is assumed to be based primarily on proprioceptive information from the previous turn and arises from bilaterally asymmetrical leg movements that occur when turning [21]. During one turn, the outer-side legs travel further than the inner ones.…”

Section: Applicationmentioning

confidence: 99%

Generalized distribution interpolated between the exponential and power-law distributions and applied to pill bug (Armadillidium vulgare) walking data

Shinohara

Okamoto

Moriyama

et al. 2021

Preprint

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To determine whether the walking pattern of an organism is a Lévy walk or a Brownian walk, it has been compared whether the frequency distribution of linear step lengths follows a power law distribution or an exponential distribution. However, there are many cases where actual data cannot be classified into either of these categories. In this paper, we propose a general distribution that includes the power law and exponential distributions as special cases. This distribution has two parameters: One represents the exponent, similar to the power law and exponential distributions, and the other is a shape parameter representing the shape of the distribution. By introducing this distribution, an intermediate distribution model can be interpolated between the power law and exponential distributions. In this study, the proposed distribution was fitted to the frequency distribution of the step length calculated from the walking data of pill bugs. The autocorrelation coefficients were also calculated from the time-series data of the step length, and the relationship between the shape parameter and time dependency was investigated. The results showed that individuals whose step-length frequency distributions were closer to the power law distribution had stronger time dependence.

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Mechanisms for turn alternation in woodlice (Porcellio scaber): The role of bilaterally asymmetrical leg movements

Cited by 27 publications

References 16 publications

Continuous Spontaneous Alternation and Turn Alternation in Artemia sp.

Continuous Spontaneous Alternation and Turn Alternation in Artemia sp.

Earthworm individualities when facing a conflict between turn alternation and aversive learning

Generalized distribution interpolated between the exponential and power-law distributions and applied to pill bug (Armadillidium vulgare) walking data

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