Nonsomatotopic Organization of the Higher Motor Centers in Octopus

@article{Zullo2009NonsomatotopicOO,
  title={Nonsomatotopic Organization of the Higher Motor Centers in Octopus},
  author={Letizia Zullo and Germ{\'a}n Sumbre and Claudio Agnisola and Tamar Flash and Binyamin Hochner},
  journal={Current Biology},
  year={2009},
  volume={19},
  pages={1632-1636}
}

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References

SHOWING 1-10 OF 41 REFERENCES
Control of Octopus Arm Extension by a Peripheral Motor Program
TLDR
It is shown that arm extensions can be evoked mechanically or electrically in arms whose connection with the brain has been severed, suggesting that the basic motor program for voluntary movement is embedded within the neural circuitry of the arm itself.
Organization of Octopus Arm Movements: A Model System for Studying the Control of Flexible Arms
TLDR
It is proposed that this strategy reduces the immense redundancy of the octopus arm movements and hence simplifies motor control.
Neurobiology: Motor control of flexible octopus arms
TLDR
It is shown that when the octopus uses one of its long and highly flexible arms to transfer an object from one place to another, it employs a vertebrate-like strategy, temporarily reconfiguring its arm into a stiffened, articulated, quasi-jointed structure, indicating that an articulated limb may provide an optimal solution for achieving precise, point-to-point movements.
Patterns of Arm Muscle Activation Involved in Octopus Reaching Movements
TLDR
The results suggest that feed-forward motor commands play an important role in the control of movement velocity and that simple adjustment of the excitation levels at the initial stages of the movement can set the velocity profile of the whole movement.
How do octopuses use their arms?
  • J. Mather
  • Biology
    Journal of comparative psychology
  • 1998
TLDR
A taxonomy of the movement patterns of the 8 flexible arms of octopuses is constructed, which appears to be based on radial symmetry, relative equipotentiality of all arms, relative independence of each arm, and separability of components within the arm.
Neurons of the Central Complex of the Locust Schistocerca gregaria are Sensitive to Polarized Light
TLDR
It is reported that particular types of central complex interneurons are sensitive to polarized light, and these neurons might serve a function in sky compass-mediated spatial navigation of the animals.
Spatial Segregation of Different Modes of Movement Control in the Whisker Representation of Rat Primary Motor Cortex
TLDR
Using awake rats and long intracortical stimulation trains in M1 whisker representation (wM1) revealed that natural-like, rhythmic whisking can be evoked from a posteromedial subregion of wM1.
Arm movements evoked by electrical stimulation in the motor cortex of monkeys.
TLDR
It is suggested that at least some of the stimulation-evoked movements reflect relatively high-level, adaptable motor plans, as well as to a weight added to the hand, which indicates adaptability to differing circumstances.
Central Pathways of the Nerves of the Arms and Mantle of Octopus
Centripetal cobalt filling of a brachial nerve of Octopus gave further information about the organization of its tactile learning system. Efferent fibres pass from the posterior buccal and
...
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