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Keep your options open: an information-based driving principle for sensorimotor systems.

Klyubin AS, Polani D, Nehaniv CL - PLoS ONE (2008)

Bottom Line: The central resource processed by the sensorimotor system of an organism is information.We propose an information-based quantity that allows one to characterize the efficiency of the perception-action loop of an abstract organism model.Various scenarios suggest that such a quantity could identify the preferred direction of evolution or adaptation of the sensorimotor loop of organisms.

View Article: PubMed Central - PubMed

Affiliation: Adaptive Systems Research Group, School of Computer Science, University of Hertfordshire, Hatfield, Hertfordshire, United Kingdom.

ABSTRACT
The central resource processed by the sensorimotor system of an organism is information. We propose an information-based quantity that allows one to characterize the efficiency of the perception-action loop of an abstract organism model. It measures the potential of the organism to imprint information on the environment via its actuators in a way that can be recaptured by its sensors, essentially quantifying the options available and visible to the organism. Various scenarios suggest that such a quantity could identify the preferred direction of evolution or adaptation of the sensorimotor loop of organisms.

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A possible phase transition in the layout of best evolved sensors.Best evolved sensors for position  are shown above, where . The transition from clustered to arched layout occurs around .
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pone-0004018-g005: A possible phase transition in the layout of best evolved sensors.Best evolved sensors for position are shown above, where . The transition from clustered to arched layout occurs around .

Mentions: Figure 5 shows the best evolved sensors for different starting positions of the agent. The positions shown begin with the agent at the centre (denoted by distance 0 to the centre), as well as displaced to the east by 1, 2, …, 20 cells. The artificial evolution found essentially two qualitatively distinct types of sensors. For an agent located near the signal source (up to a distance of 11 cells) the sensors form nearly two-dimensional “blobs” which capture more or less the absolute displacement from the source. However, for the areas further away from the source (12 cells and more), the sensors change character and collapse into roughly one-dimensional circular segments centred approximately at the source and which only capture the bearing to the source. This phenomenon appears consistently also for other displacement directions (not shown here), not only for vertical ones which are equivalent to the horizontal ones due to symmetry, but also diagonal ones.


Keep your options open: an information-based driving principle for sensorimotor systems.

Klyubin AS, Polani D, Nehaniv CL - PLoS ONE (2008)

A possible phase transition in the layout of best evolved sensors.Best evolved sensors for position  are shown above, where . The transition from clustered to arched layout occurs around .
© Copyright Policy
Related In: Results  -  Collection

Show All Figures
getmorefigures.php?uid=PMC2607028&req=5

pone-0004018-g005: A possible phase transition in the layout of best evolved sensors.Best evolved sensors for position are shown above, where . The transition from clustered to arched layout occurs around .
Mentions: Figure 5 shows the best evolved sensors for different starting positions of the agent. The positions shown begin with the agent at the centre (denoted by distance 0 to the centre), as well as displaced to the east by 1, 2, …, 20 cells. The artificial evolution found essentially two qualitatively distinct types of sensors. For an agent located near the signal source (up to a distance of 11 cells) the sensors form nearly two-dimensional “blobs” which capture more or less the absolute displacement from the source. However, for the areas further away from the source (12 cells and more), the sensors change character and collapse into roughly one-dimensional circular segments centred approximately at the source and which only capture the bearing to the source. This phenomenon appears consistently also for other displacement directions (not shown here), not only for vertical ones which are equivalent to the horizontal ones due to symmetry, but also diagonal ones.

Bottom Line: The central resource processed by the sensorimotor system of an organism is information.We propose an information-based quantity that allows one to characterize the efficiency of the perception-action loop of an abstract organism model.Various scenarios suggest that such a quantity could identify the preferred direction of evolution or adaptation of the sensorimotor loop of organisms.

View Article: PubMed Central - PubMed

Affiliation: Adaptive Systems Research Group, School of Computer Science, University of Hertfordshire, Hatfield, Hertfordshire, United Kingdom.

ABSTRACT
The central resource processed by the sensorimotor system of an organism is information. We propose an information-based quantity that allows one to characterize the efficiency of the perception-action loop of an abstract organism model. It measures the potential of the organism to imprint information on the environment via its actuators in a way that can be recaptured by its sensors, essentially quantifying the options available and visible to the organism. Various scenarios suggest that such a quantity could identify the preferred direction of evolution or adaptation of the sensorimotor loop of organisms.

Show MeSH