The Hub of Being (16-1-19) Sensation Physiology


Stimuli in the natural world are extremely complex, and a complete record of the sensory stimuli impinging on the nervous system would be immense. It would not be unreasonable to expect this complexity to be reflected in the neural response. ~ American molecular biologist Thomas Adelman, American biophysicist William Bialek & American entomologist Robert Olberg

The complexity of sensation becomes inscrutable in considering that neural activity is stunningly simple compared to the sensations produced in the mind.

Neurons respond to stimuli with action potentials or spikes. ~ Thomas Adelman et al

Neurobiologists have, for over a century, promoted the neuron doctrine: ascribing neurons as the cells of sensory processing, despite never being able to identify how, or even whether, nerve cells might store and share information. Current tales about chemical reactions between the synapses of nerve cells storing information are unconvincing.

Instead of nerves, glia cells accomplish the physical correlate of information storage and sharing via calcium waves. Glia manage neurons. Neurobiologists have been looking in the wrong place all along.

Even properly understanding the physiology associated with sensory processing does not explain the fullness of sensation. Sight, which is the most complex of the senses, illustrates this.