Somatosensory Pathway

A somatosensory pathway is a shared neural pathway in the peripheral nervous system, which delivers multiple senses to the brain. Haptics, tactile sense, both heat and cold detection, proprioception and nociception all use the somatosensory pathways.

Each pathway is actually two neurons, each reaching from the bottom of the brainstem, to the sensory area. Each may split many times along the journey to the periphery. One deals with transferring sensory stimuli to the brain, the other delivers response. Each is one way only, and for a VR to tap into them directly, both must be interfaced, and diverted.

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Somatosensory Pathway

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Cells with double vision
Unlike in the peripheral nervous system, where cells are often unable to distinguish which branching pathway an electrical system is travelling from, the central nervous system makes use of sophisticated internal networks not too dissimilar from an IP record, to differentiate between nervous pathways.

Nervous Structure of the Arm
This article is intended to serve as a general introduction to the nerve layout in the human arm and hand. It is not concerned with bone or muscle layout, but simply with the areas affected by each nerve pathway, and data type. It exists as an aid to those desiring to create a replacement arm, either prosthetic or virtual, and understand purely which area of the limb feeds sensory information to which part of the nervous system.

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