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Cognitive Therapy and Research

, Volume 34, Issue 1, pp 49–58 | Cite as

Implicit Memory and Posttraumatic Stress Symptoms

  • Nader Amir
  • Amy S. Leiner
  • Jessica Bomyea
Original Article

Abstract

Recent theories of Posttraumatic Stress Disorder (PTSD) suggest that memory dysregulation plays a crucial role in symptom maintenance. However, it is not clear which specific memory systems are involved in PTSD. In this study we used a visual implicit memory paradigm to examine memory bias in individuals with PTSD symptoms. Three hundred nineteen participants provided self-report measures of PTSD, anxiety and depression symptoms. Next they completed a visual clarity-rating task (Amir et al. Cognition and Emotion 17(4):567–583, 2003) to assess implicit memory for three picture types (trauma-relevant, neutral, and negative). Results revealed that participants with PTSD symptoms had greater implicit memory for negative and trauma-relevant pictures compared to neutral pictures. Traumatized individuals without PTSD symptoms showed greater implicit memory for negative pictures relative to trauma and neutral pictures. This pattern of results suggests that implicit memory bias for trauma-relevant and negative visual information may be an important factor in the maintenance of PTSD symptoms.

Keywords

Trauma PTSD Implicit memory 

References

  1. American Psychiatric Association (2000). Diagnostic and statistical manual of mental disorders (4th ed., text revision). Washington, DC: Author.Google Scholar
  2. Amir, N., Beard, C., Burns, M., & Bomyea, J. Attention modification program for individuals with Generalized Anxiety Disorder. Journal of Abnormal Psychology, in press.Google Scholar
  3. Amir, N., Bower, E., Briks, J., & Freshman, M. (2003). Implicit memory for negative and positive social information in individuals with and without social anxiety. Cognition and Emotion, 17(4), 567–583. doi: 10.1080/02699930302300.CrossRefGoogle Scholar
  4. Amir, N., McNally, R. J., & Wiegartz, P. S. (1996). Implicit memory bias for threat in posttraumatic stress disorder. Cognitive Therapy and Research, 20, 625–635. doi: 10.1007/BF02227965.CrossRefGoogle Scholar
  5. Beck, A. T., Steer, R. A., & Brown, G. (1996). Beck depression inventory manual-II. San Antonio, TX: Psychological Corporation.Google Scholar
  6. Beck, A. T., Steer, R. A., & Garbin, M. G. (1988). Psychometric properties of the beck depression inventory: Twenty-five years of evaluation. Clinical Psychology Review, 8(1), 77–100. doi: 10.1016/0272-7358(88)90050-5.CrossRefGoogle Scholar
  7. Brennen, T., Dybdahl, R., & Kapidzic, A. (2007). Trauma-related and neutral false memories in war-induced posttraumatic stress disorder. Consciousness and Cognition, 16, 877–885. doi: 10.1016/j.concog.2006.06.012.CrossRefPubMedGoogle Scholar
  8. Brewin, C. R. (2007). Autobiographical memory for trauma: Update on four controversies. Memory (Hove, England), 15(3), 227–248. doi: 10.1080/09658210701256423.CrossRefGoogle Scholar
  9. Brewin, C. R., Dalgleish, T., & Joseph, S. (1996). A dual representation theory of posttraumatic stress disorder. Psychological Review, 103, 670–686. doi: 10.1037/0033-295X.103.4.670.CrossRefPubMedGoogle Scholar
  10. Brewin, C., Kleiner, J., Vasterling, J., & Field, A. (2007). Memory for emotionally neutral information in posttraumatic stress disorder: A meta-analytic investigation. Journal of Abnormal Psychology, 116, 448–463. doi: 10.1037/0021-843X.116.3.448.CrossRefPubMedGoogle Scholar
  11. Bryant, R. A., & Harvey, A. G. (1995). Processing threatening information in posttraumatic stress disorder. Journal of Abnormal Psychology, 104(3), 537. doi: 10.1037/0021-843X.104.3.537541.CrossRefPubMedGoogle Scholar
  12. Dalgleish, T. (2004). Cognitive approaches to posttraumatic stress disorder: The evolution of multirepresentational theorizing. Psychological Bulletin, 130(2), 228–260.CrossRefPubMedGoogle Scholar
  13. Elhers, A., & Clark, D. M. (2000). A cognitive model of posttraumatic stress disorder. Behaviour Research and Therapy, 38, 319–345.CrossRefGoogle Scholar
  14. Elhers, A., Hackmann, A., Steil, R., Clohessy, S., Wenninger, K., & Winter, H. (2002). The nature of intrusive memories after trauma: The warning signal hypothesis. Behavior Research & Therapy, 40, 995.CrossRefGoogle Scholar
  15. Elhers, A., & Steil, R. (1995). Maintenance of intrusive memories in posttraumatic stress disorder: A cognitive approach. Behavioral and Cognitive Psychotherapy, 23, 217–249.CrossRefGoogle Scholar
  16. Foa, E. B., Cashman, L., Jaycox, L., & Perry, K. (1997). The validation of a self-report measure of posttraumatic stress disorder: The posttraumatic diagnostic scale. Psychological Assessment, 9, 445–451.CrossRefGoogle Scholar
  17. Foa, E. B., & Kozak, M. J. (1986). Emotional processing of fear: Exposure to corrective information. Psychological Bulletin, 99, 20–35.CrossRefPubMedGoogle Scholar
  18. Golier, J., Yehuda, R., Lupien, S., & Harvey, P. (2003). Memory for trauma-related information in Holocaust survivors with PTSD. Psychiatry Research, 121, 133–143.CrossRefPubMedGoogle Scholar
  19. Hackmann, A., Ehlers, A., Speckens, A., & Clark, D. (2004). Characteristics and content of intrusive memories in PTSD and their changes with treatment. Journal of Traumatic Stress, 17, 231–240.CrossRefPubMedGoogle Scholar
  20. Harvey, A. G., Bryant, R. A., & Dan, S. T. (1998). Autobiographical memory in acute stress disorder. Journal of Consulting and Clinical Psychology, 66(3), 500–506.CrossRefPubMedGoogle Scholar
  21. Kessler, R. C., Sonnega, A., Bromet, E., Hughes, M., & Nelson, C. B. (1995). Posttraumatic stress disorder in the national comorbidity survey. Archives of General Psychiatry, 52, 1048–1063.PubMedGoogle Scholar
  22. Lang, P., Greenwald, M., Bradley, M., & Hamm, A. (1993). Looking at pictures: Affective, facial, visceral, and behavioral reactions. Psychophysiology, 30, 261–273.CrossRefPubMedGoogle Scholar
  23. Martin, M., Williams, R. M., & Clark, D. M. (1991). Does anxiety lead to selective processing of threat-related information? Behaviour Research and Therapy, 29, 147–160.CrossRefPubMedGoogle Scholar
  24. McNally, R. J. (1995). Automaticity and the anxiety disorders. Behavior Research & Therapy, 33(7), 747–754.CrossRefGoogle Scholar
  25. McNally, R. J., & Amir, N. (1996). Perceptual implicit memory for trauma-related information in post-traumatic stress disorder. Cognition and Emotion, 10(5), 551–556.CrossRefGoogle Scholar
  26. Michael, T., & Ehlers, A. (2007). Enhanced perceptual priming for neutral stimuli occurring in traumatic context: Two experimental investigations. Behavior Research & Therapy, 45, 341–358.CrossRefGoogle Scholar
  27. Michael, T., Elhers, A., & Halligan, S. L. (2005). Enhanced priming for trauma-related material in posttraumatic stress disorder. Emotion, 5(1), 103–112.CrossRefPubMedGoogle Scholar
  28. Moore, S. A., & Zoellner, L. A. (2005). Overgeneral autobiographical memory and traumatic events: An evaluative review. Psychological Bulletin, 133(3), 419–437.CrossRefGoogle Scholar
  29. Ochsner, K. R. (2000). Are affective events richly remembered or simply familiar? The experience and process of recognizing feelings past. Journal of Experimental Psychology: General, 129(2), 242–261.CrossRefGoogle Scholar
  30. Paunovic, N., Lundh, L., & Ost, L. (2002). Attentional and memory bias for emotional information in crime victims with acute posttraumatic stress disorder (PTSD). Journal of Anxiety Disorders, 16, 675–692.CrossRefGoogle Scholar
  31. Perruchet, P., & Baveux, P. (1989). Correlational analyses of implicit and explicit memory performance. Memory and Cognition, 17(1), 77–86.Google Scholar
  32. Russo, R., Fox, E., & Bowles, R. J. (1999). On the status of implicit memory bias in anxiety. Cognition and Emotion, 13(4), 435–456.CrossRefPubMedGoogle Scholar
  33. Schacter, D. L. (1987). Implicit memory: History and current status. Journal of Experimental Psychology: Learning. Memory and Cognition, 13(3), 501–518.CrossRefGoogle Scholar
  34. Schacter, D. L., & Badgaiyan, R. D. (2001). Neuroimaging of priming: New perspectives on implicit and explicit memory. Current Directions in Psychological Science, 10(1), 1–4.CrossRefGoogle Scholar
  35. Shipherd, J., & Beck, G. J. (2005). The role of thought suppression in posttraumatic stress disorder. Behavior Therapy, 36(3), 277–287.CrossRefGoogle Scholar
  36. Spielberger, C. D., Gorsuch, R. L., & Lushene, R. (1970). Manual for the state-trait anxiety inventory (STAI). Palo Alto, CA: Consulting Psychology Press.Google Scholar
  37. Spielberger, C. D., Gorsuch, R. L., Lushene, R., Vagg, P. R., & Jacobs, G. A. (1983). Manual for the state-trait anxiety inventory. Palo Alto, CA: Consulting Psychologist Press.Google Scholar
  38. Spitzer, R. L., Williams, J. B. W., Gibbon, M., & First, M. B. (1990). User’s guide for the structured clinical interview for DSM-III-R: SCID. Washington, DC: American Psychiatric Association.Google Scholar
  39. Steil, R., & Ehlers, A. (2000). Dysfunctional meaning of posttraumatic intrusions in chronic PTSD. Behavior Research and Therapy, 38, 537–558.CrossRefGoogle Scholar
  40. Twamely, E. W., Hami, S., & Stein, M. B. (2004). Neuropsychological function in college students with and without posttraumatic stress disorder. Psychiatry Research, 126, 265–274.CrossRefGoogle Scholar
  41. Wenzlaff, R. M., & Wegner, D. M. (2000). Thought suppression. Annual Review of Psychology, 51, 59–91.CrossRefPubMedGoogle Scholar

Copyright information

© Springer Science+Business Media, LLC 2008

Authors and Affiliations

  1. 1.San Diego State UniversitySan DiegoUSA
  2. 2.University of California San DiegoSan DiegoUSA
  3. 3.Atlanta VAMUAtlantaUSA

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