1. Davenport PW, Sapienza CM, Bolser DC (2002) Psychophysical assessment of the Urge-to-Cough. Eur Respir Rev 12(85):249–253
2. Davenport PW, Bolser DC, Vickroy T, Berry R, Martin AD, Hey JA, Danzig M (2007) The effect of codeine on the urge-to-cough response to inhaled capsaicin. Pulm Pharmacol Ther 20(4):338–346
3. Vovk A, Bolser DC, Hey JA, Danzig M, Vickroy T, Berry R, Martin AD, Davenport PW (2007) Capsaicin exposure elicits complex airway defensive motor patterns in normal humans in a concentration dependent manner. Pulm Pharmacol Ther 20(4):423–432
4. Bradley MM (2000) Emotion and motivation. In: Cacioppo JT, Tassinary LG, Bernston GG (eds), Handbook of Psychophysiology, 2nd ed. New York: Cambridge University Press, pp 602–642
5. Cameron OG (2002) Visceral Sensory Neuroscience:Interoception. New York: Oxford University Press, pp 35–55