Ainsley Iggo, born in Napier, New Zealand on the 2nd of August 1924 died at his home in Edinburgh on the 25th of March 2012 aged 87. As an electrophysiologist Ainsley pioneered the study of sensory cutaneous receptors and afferents, the organisation of the dorsal horn and the physiology of the ascending tracts within the spinal cord. In particular he was amongst the first to classify C fibres and mechanoreceptors and discovered themoreceptors in the skin. His most cited paper is a classic with Alan Muir, outlining the morphological and physiological characteristics for distinguishing a unique cutaneous receptor type from all others, in this case the Merkel receptor. Interestingly, his next most cited paper dates from 1955 describing his early work in Edinburgh which completed his studies for his PhD in the Rowett Research Institute in Aberdeen, on tension receptors in the stomach and urinary bladder. At this time he also established the mandatory requirements for the identification of action potentials recorded from a single fibre using the collision technique.
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