1. Background
   1. Presence-body movement (slater,1998)
      1. Presence in VE
      2. Presence in RW
   2. types of Presence (Draper, Kaber,Usher,1998)
      1. Simple
      2. cybernetic
      3. exprential
   3. Another definition of presence(Zahoric &Jenision,1998 )
   4. Presence Vs. Immersion
   5. Presence equation(Ellis,1996)
   6. 子主题 6
2. Measurement of presence
   1. Measurement task performance to avoid measement of presence
   2. ethonography reseach on presence
   3. by observing the behavior(Held &Durlach, 1992)
   4. by subjective report(questionnaire)
      1. Presence questionnaire(Witmer & Singer,1998)
      2. (Bafield,Weghost,1993) Three questions with ten-points scale
      3. (Slater,Steeed,Usoh,1993)
      4. (Welch,1996)
      5. (Hendrix and Bafied,1996)
      6. (Snow & Williges, 1998)
      7. (Freeman, 1999)
3. 第二项
   1. 子主题 1
   2. 子主题 2
   3. 子主题 3
4. 最后一项
   1. 子主题 1
   2. 子主题 2
   3. 子主题 3