Question

1. How is sensory energy encoded in patterns of neural impulses?
2. How is information about the strength, location and adaption taken by the nervous system while extraneous info is filtered out?

Answer 1

1. Sensory codes are the principles under which the nervous system converts proximal sensory properties into neuronal impulses. Psychological strength (e.g., loudness or brightness) is generally measured by neuronal firing levels, as well by the sheer number of neurons activated by stimulation.

2. The information about the strength, location and adaption taken by the nervous system when the cell membrane potential of a sensory neuron changes with a stimulus. The stimulus triggers the sensory cell to create a potential for action that is transmitted to the central nervous system, where it is translated into other sensory information or even higher cognitive functions to become a conscious experience of the stimulus. The central integration will then result in the motor response.