Apparent approximations in sensorimotor transformations are due to errors in pointing

Article Abstract:

The theory presented by Martha Flanders et al propose that the shoulder-centered radial pointing errors result from the separate finding of a linear approximation to the inverse kinematics was disputed by a group believing that the radial undershoot causes the apparent linearity as a side-effect. They propose that the observed inverse kinematics approximation is equivalent to the independently observed radial undershoot and that the linear approximation is not used explicitly by the motor system but is an artifact of the undershoot.

Analysis

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Sensorimotor reference frames and physiological attractors

Article Abstract:

Ilan Golani's mobility gradient is evaluated on the merits of its applicability to the mammalian species. It was shown that the mobility gradient applies best to the case of vertebrate Tetrapoda but does not take into account flying and swimming animals. It was suggested that a spatialframe must be developed basing on fixed external data so as to accomodate all models of animal motion. It was also presented that mathematical equations be developed since Golani's facts were drawn basically from mechanical constraints.

Physiological aspects, Sensorimotor integration

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For effective sensorimotor processing must there be explicit representations and reconciliation of differing frames of reference?

Article Abstract:

The question concerning the necessity of explicit representations and reconciliation of differing frames of reference for sensorimotor processing was studied. It was shown that the combination of eye position and retinotropic visual signals is all that is necessary for implicit and effective reconciliation of retinotropic and craniotropic reference frames. It was suggested that sensorimotor integration is achieved in the motor system by direct combinations of visually derived and kinaesthetically derived signals.

Models

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