Korean Journal of Biological Psychiatry (생물정신의학)

The Korean Society of Biological Psychiatry (대한생물정신의학회)
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A Preliminary Study of Attentional Blink of Rapid Serial Visual Presentation in Burn Patients with Posttraumatic Stress Disorder

화상 환자에서 신속 순차 시각 제시를 이용한 주의깜빡임에 관한 예비연구

  • Kim, Dae Hee (Department of Psychiatry, Hangang Sacred Heart Hospital) ;
  • Jun, Bora (Department of Psychiatry, Hangang Sacred Heart Hospital) ;
  • Seo, Cheong Hoon (Department of Rehabilitation, Hangang Sacred Heart Hospital) ;
  • Cho, Yongsuk (Department of Surgery, Hangang Sacred Heart Hospital) ;
  • Yim, Haejun (Department of Surgery, Hangang Sacred Heart Hospital) ;
  • Hur, Jun (Department of Surgery, Hangang Sacred Heart Hospital) ;
  • Kim, Dohern (Department of Surgery, Hangang Sacred Heart Hospital) ;
  • Chun, Wook (Department of Surgery, Hangang Sacred Heart Hospital) ;
  • Kim, Jonghyun (Department of Surgery, Hangang Sacred Heart Hospital) ;
  • Jung, Myung Hun (Department of Psychiatry, Hangang Sacred Heart Hospital) ;
  • Choi, Ihngeun (Department of Psychiatry, Hangang Sacred Heart Hospital) ;
  • Lee, Boung Chul (Department of Psychiatry, Hangang Sacred Heart Hospital)
  • 김대희 (한림대학교 의과대학 한강성심병원 정신과학교실) ;
  • 전보라 (한림대학교 의과대학 한강성심병원 정신과학교실) ;
  • 서정훈 (한림대학교 의과대학 한강성심병원 재활의학과학교실) ;
  • 조용석 (한림대학교 의과대학 한강성심병원 외과학교실) ;
  • 임해준 (한림대학교 의과대학 한강성심병원 외과학교실) ;
  • 허준 (한림대학교 의과대학 한강성심병원 외과학교실) ;
  • 김도헌 (한림대학교 의과대학 한강성심병원 외과학교실) ;
  • 전욱 (한림대학교 의과대학 한강성심병원 외과학교실) ;
  • 김종현 (한림대학교 의과대학 한강성심병원 외과학교실) ;
  • 정명훈 (한림대학교 의과대학 한강성심병원 정신과학교실) ;
  • 최인근 (한림대학교 의과대학 한강성심병원 정신과학교실) ;
  • 이병철 (한림대학교 의과대학 한강성심병원 정신과학교실)
  • Published : 2010.05.31
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Abstract

Objectives : Trauma patients have attentional bias which enforces traumatic memories and causes cognitive errors. Understanding of such selective attention may explain many aspects of the posttraumatic stress disorder(PTSD) symptoms. Methods : We used the rapid serial visual presentation(RSVP) method to verify attentional blink in burn patients with PTSD. International affective picture system(IAPS) was used as stimuli and distracters. In the 'neutral test', patients have been presented series of pictures with human face picture as target stimuli. Each picture had 100ms interval. However the distance between target facial pictures was randomized and recognition of second facial picture accuracy was measured. In the 'stress test', the first target was stress picture which arouses patient emotions instead of the facial picture. Neutral and Stress tests were done with seven PTSD patients and 20 controls. In '85ms test' the interval was reduced to 85ms. The accuracy of recognition of second target facial picture was rated in all three tests. Eighty-five ms study was done with eighteen PTSD patients. Results : Attentional blinks were observed in 100-400ms of RSVP. PTSD patients showed increased recognition rate in the 'stress test' compared with the 'neutral test'. When presentation interval was decreased to 85 ms, PTSD patient showed decrease of attentional blink effect when target facial picture interval was 170ms. Conclusion : We found attentional blink effect could be affected by stress stimulus in burn patients. And attentional blink may be affected by stimulus interval and the character of stimulus. There may be some other specific mechanism related with selective attention in attentional blink especially with facial picture processing.

Keywords

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