Further issues regarding the possible modulation of cognitive function by the chewing of gum: response to Stephens and Tunney (2004) and Tucha et al. (2004)

An initial summary of four papers in Appetite on modulation of cognitive function while chewing gum attempted to identify the bearing of similarities and differences between methodologies on the results reported. In their responses the authors of two of the papers highlight further methodological and theoretical issues, and these are discussed briefly here.