Childhood Sexual Abuse related posttraumatic stress disorder (CSA-related PTSD), and anxiety and depressive disorders (clinical depression) have profound though differential impact on adolescent... Show moreChildhood Sexual Abuse related posttraumatic stress disorder (CSA-related PTSD), and anxiety and depressive disorders (clinical depression) have profound though differential impact on adolescent emotion regulation, attention bias and emotional face processing. We hypothesized increased negative attention bias for emotional faces and altered brain functioning in CSA-related PTSD compared to internalizing disorders and healthy controls in a cross-sectional fMRI study using an emotional face processing task in 19 12-20-year-old adolescents with CSA-related PTSD, 26 with internalizing disorders and 26 healthy controls.Outcome measures were reaction times, subjective ratings of emotional faces, and brain activation patterns for whole brain and for regions of interest. Compared to both other groups adolescents with CSA-related PTSD showed significantly slower reaction times and the highest subjective rating of emotional faces. On whole brain and ROI level, no significant group differences were found. Self-reported depressive, posttraumatic or dissociative symptoms were not associated with differences in task-related brain activity. Results support the hypothesis of increased negative attention bias for fearful and neutral faces in CSA-related PTSD versus both other groups. The absence of neural differences might indicate a brain-behavior neuro-imaging gap to be closed by larger and IQ matched samples or more sensitive paradigms to elicit emotion processing. Show less
Adverse childhood experiences (ACE) substantially increase the risk of later psychiatric and somatic pathology. While neurobiological factors are likely to play a mediating role, specific insights... Show moreAdverse childhood experiences (ACE) substantially increase the risk of later psychiatric and somatic pathology. While neurobiological factors are likely to play a mediating role, specific insights are lacking. The scarce neuroimaging studies in traumatised pediatric populations have provided inconsistent results, potentially due to the inclusion of different types of trauma. To further improve our understanding of the neurobiology of pediatric psychotrauma, this study seeks to investigate abnormalities in grey matter volume (GMV) in a homogeneous group of adolescents with posttraumatic stress disorder (PTSD) due to childhood sexual abuse (CSA) and the relationship between GMV and symptom severity. We performed a voxel based morphometry (VBM) analysis in 21 adolescents with CSA-related PTSD and 25 matched non-traumatised, non- clinical adolescents. Hippocampus, amygdala, anterior cingulate cortex (ACC), medial PFC (mPFC) and superior temporal gyrus (STG) were chosen as regions of interest (ROIs). Trauma symptomatology was measured with the Trauma Symptom Checklist for Children (TSCC) and dissociation symptoms with the Adolescent Dissociative Experiences Scale (A-DES). The ROI analysis showed that the CSA-related PTSD group had significant smaller volumes of the dorsal ACC as compared to healthy controls. However, no correlations were found between GMV and scores on the TSCC and A-DES. The smaller ACC volume is partly in line with previous studies in traumatised youth and is a consistent finding in traumatised adults. Taken together our results suggest that the dorsal ACC is implicated in the neurobiological sequelae of CSA, potentially associated with an altered evaluative processing of emotion, but not directly with PTSD severity. Show less
Rinne-Albers, M.A.W.; Werff, S.J.A. van der; Hoof, M.J. van; Lang, N.D. van; Lamers-Winkelman, F.; Rombouts, S.A.; ... ; Wee, N.J.A. van der 2016
This study seeks to determine whether white matter integrity in the brain differs between adolescents with post-traumatic stress disorder (PTSD) due to childhood sexual abuse (CSA) and matched... Show moreThis study seeks to determine whether white matter integrity in the brain differs between adolescents with post-traumatic stress disorder (PTSD) due to childhood sexual abuse (CSA) and matched healthy adolescents and whether there is a relationship between white matter integrity and symptom severity in the patient group. Using 3T diffusion tensor imaging, we examined fractional anisotropy (FA) in a group of adolescents with CSA-related PTSD (n = 20) and matched healthy controls (n = 20), in a region of interest consisting of the bilateral uncinate fasciculus (UF), the genu, splenium and body of the corpus callosum (CC), and the bilateral cingulum. In addition, we performed an exploratory whole brain analysis. Trauma symptomatology was measured with the Trauma Symptom Checklist for Children (TSCC) to enable correlational analyses between FA differences and trauma symptomatology. The PTSD group had significantly lower FA values in the genu, midbody and splenium of the CC in comparison with controls (p < 0.05, tfce corrected). Post hoc analyses of the eigenvalues of the DTI scan showed increased radial and mean diffusivity in the patient group. In addition, we found a significant negative correlation between scores on the anger subscale of the TSCC and FA values in the left body of the CC in patients (p < 0.05). Adolescents with CSA-related PTSD show decreased FA in the CC, with abnormalities in the integrity of the left body of the CC being related to anger symptoms. These findings suggest that early trauma exposure affects the development of the CC, which may play a role in the pathophysiology of PTSD in adolescents. Show less
Aghajani, M.; Veer, I.M.; Hoof, M.J. van; Rombouts, S.A.R.B.; Wee, N.J. van der; Vermeiren, R.R.J.M. 2016
This study seeks to determine whether white matter integrity in the brain differs between adolescents with post-traumatic stress disorder (PTSD) due to child- hood sexual abuse (CSA) and matched... Show moreThis study seeks to determine whether white matter integrity in the brain differs between adolescents with post-traumatic stress disorder (PTSD) due to child- hood sexual abuse (CSA) and matched healthy adolescents and whether there is a relationship between white matter integrity and symptom severity in the patient group. Using 3T diffusion tensor imaging, we examined fractional ani- sotropy (FA) in a group of adolescents with CSA-related PTSD (n = 20) and matched healthy controls (n = 20), in a region of interest consisting of the bilateral uncinate fas- ciculus (UF), the genu, splenium and body of the corpus callosum (CC), and the bilateral cingulum. In addition, we performed an exploratory whole brain analysis. Trauma symptomatology was measured with the Trauma Symp- tom Checklist for Children (TSCC) to enable correlational analyses between FA differences and trauma symptomatol- ogy. The PTSD group had significantly lower FA values in the genu, midbody and splenium of the CC in comparison with controls (p < 0.05, tfce corrected). Post hoc analyses of the eigenvalues of the DTI scan showed increased radial and mean diffusivity in the patient group. In addition, we found a significant negative correlation between scores on the anger subscale of the TSCC and FA values in the left body of the CC in patients (p < 0.05). Adolescents with CSA-related PTSD show decreased FA in the CC, with abnormalities in the integrity of the left body of the CC being related to anger symptoms. These findings suggest that early trauma exposure affects the development of the CC, which may play a role in the pathophysiology of PTSD in adolescents. Show less
Although attachment representation is considered to be disturbed in traumatized adolescents, it is not known whether this is specific for trauma, as comparative studies with other clinical groups... Show moreAlthough attachment representation is considered to be disturbed in traumatized adolescents, it is not known whether this is specific for trauma, as comparative studies with other clinical groups are lacking. Therefore, attachment representation was studied by means of the Adult Attachment Interview in adolescents with Childhood Sexual Abuse (CSA) (N = 21), clinical depression (N = 28) and non-clinical controls (N = 28). Coherence of mind and unresolved loss or trauma, as well as the disorganized attachment classification differentiated the CSA group from the clinical depression group and controls, over and above age, IQ, and psychiatric symptomatology. In the current era of sustained criticism on criteria-based classification, this may well carry substantial clinical relevance. If attachment is a general risk or vulnerability factor underlying specific psychopathology, this may guide diagnostic assessment as well as treatment. Show less
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