Research suggests that the interaction between increased arousal and accompanying psychological mood have a combined effect upon behavior and performance (Edwards & Hardy, 1996; Hardy, 1996b; Hardy & Parfitt, 1991; Janelle, Singer, & Williams, 1999; Thelwell & Maynard, 1998; Woodman, Albinson, & Hardy, 1997).
by D. Gant Ward , Richard H. Cox