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Hippocampal Amygdalar Vol. in Dissociative Identity Disorder
So 12. Jun 2011, 16:10
Quelle:http://ajp.psychiatryonline.org/cgi/content/full/163/4/630, SURVIVORSOFRITUALANDRITUALISTICABUSE@yahoogroups.com Hippocampal and Amygdalar Volumes in Dissociative Identity Disorder has: Hippocampal and Amygdalar Volumes in Dissociative Identity Disorder The neurobiological consequences of early stress and childhood maltreatment Recent findings regarding brain development and childhood abuse/adversity Does Child Abuse Permanently Alter the Brain? The Psychobiology of Posttraumatic Stress Disorder (including physical and sexual abuse)
Hippocampal and Amygdalar Volumes in Dissociative Identity Disorder Eric Vermetten, M.D., Ph.D., Christian Schmahl, M.D., Sanneke Lindner, M.Sc., Richard J. Loewenstein, M.D., and J. Douglas Bremner, M.D. Am J Psychiatry 163:630-636, April 2006 doi: 10.1176/appi.ajp.163.4.630....
METHOD: The authors used magnetic resonance imaging to measure the volumes of the hippocampus and amygdala in 15 female patients with dissociative identity disorder and 23 female subjects without dissociative identity disorder or any other psychiatric disorder. The volumetric measurements for the two groups were compared.
RESULTS: Hippocampal volume was 19.2% smaller and amygdalar volume was 31.6% smaller in the patients with dissociative identity disorder, compared to the healthy subjects. The ratio of hippocampal volume to amygdalar volume was significantly different between groups.
CONCLUSIONS: The findings are consistent with the presence of smaller hippocampal and amygdalar volumes in patients with dissociative identity disorder, compared with healthy subjects. http://ajp.psychiatryonline.org/cgi/con ... /163/4/630
full text "The patients with dissociative identity disorder in our study showed a 19.2% smaller hippocampal volume and a 31.6% smaller amygdalar volume, compared with the healthy subjects." http://ajp.psychiatryonline.org/cgi/con ... /163/4/630
The neurobiological consequences of early stress and childhood maltreatment Martin H. Teicher, Susan L. Andersena, Ann Polcarib, Carl M. Andersona, Carryl P. Navaltae, and Dennis M. Kima
Abstract Early severe stress and maltreatment produces a cascade of neurobiological events that have the potential to cause enduring changes in brain development. These changes occur on multiple levels, from neurohumoral (especially the hypothalamic–pituitary–adrenal {HPA} axis) to structural and functional. The major structural consequences of early stress include reduced size of the mid-portions of the corpus callosum and attenuated development of the left neocortex, hippocampus, and amygdala.
Major functional consequences include increased electrical irritability in limbic structures and reduced functional activity of the cerebellar vermis. There are also gender differences in vulnerability and functional consequences. The neurobiological sequelae of early stress and maltreatment may play a significant role in the emergence of psychiatric disorders during development. http://www.sciencedirect.com/science/ar ... 3403000071
Dr. Martin H. Teicher - Recent findings regarding brain development and childhood abuse/adversity https://drteicher.wordpress.com/
https://drteicher.wordpress.com/2010/11/ Keynote: Pierre Janet memorial lecture ISSTD Does Child Abuse Permanently Alter the Brain? Martin H. Teicher, M.D., Ph.D. (PowerPoint)
Annals of the New York Academy of Sciences New York Academy of Sciences June 1997 Volume 821 Psychobiology of Posttraumatic Stress Disorder, The Pages xi–xv, 1–548 http://onlinelibrary.wiley.com/doi/10.1 ... 1/issuetoc includes: Psychobiological Effects of Sexual Abuse : A Longitudinal Study (pages 150–159) FRANK W. PUTNAM and PENELOPE K. TRICKETT DOI: 10.1111/j.1749-6632.1997.tb48276.x
Preliminary Evidence for Abnormal Cortical Development in Physically and Sexually Abused Children Using EEG Coherence and MRI (pages 160–175) MARTIN H. TEICHER, YUTAKA ITO, CAROL A. GLOD, SUSAN L. ANDERSEN, NATALIE DUMONT and ERIKA ACKERMAN DOI: 10.1111/j.1749-6632.1997.tb48277.x
Implicit and Explicit Memory for Trauma-Related Information in PTSD (pages 219–224) RICHARD J. MCNALLY DOI: 10.1111/j.1749-6632.1997.tb48281.x
Trauma, Dissociation, and Memory (pages 225–237) DAVID SPIEGEL DOI: 10.1111/j.1749-6632.1997.tb48282.x