Approximations might lead to errors in brain science

Article Abstract:

Martha Flanders et al presented a model which interpret the brain in terms of neural networks. In order to understand the implications of Flanders et al's work, an alternative model was presented which consists of a structure equivalent to a vast table of remembered pointing positions. Certain errors were pointed out such as the concept of a person reaching out using only his arm. Distances were calculated relative to measured shoulder positions. In the alternative model, subjects apply only the remembered arm movements. The results of the analysis underline the need for different approaches in solving scientific problems.

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Are errors in final position destined before the movement begins?

Article Abstract:

The research conducted by Martha Flanders et al on sensorimotor transformations show that systematic errors are predestined by the early stages, before the movement begins. The extrinsic coordinates of three-dimensional space are presumed to be transformed into coordinated of the four-dimensional space of segment orientations. It was assumed that the errors observed in the research can arise in transforming segment orientations to extrinsic coordinates.

Analysis, Psychophysiology

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