Range fractionation

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Range fractionation is a term used in biology. Sense organs are usually composed of many sensory receptors measuring the same property. These sensory receptors show a limited degree of precision due to an upper limit in firing rate. If the receptors are endowed with distinct transfer functions in such a way that the points of highest sensitivity are scattered along the axis of the quality being measured, the precision of the sense organ as a whole can be increased. This was shown for the chordotonal organ in the locust leg.[1]. Range fractionation takes place when cells are specialized for different firing thresholds over a range of stimulus intensities.


  1. ^ Campbell, J.; et al. (1968). ""Structure and physiology of a chordotonal organ in the locust leg"". Journal of Experimental Biology. 48: 305–323.