Diffusion Tensor Imaging of Pedophilia
Autor: | David J. Mikulis, Debra W. Soh, James M. Cantor, Massieh Moayedi, Sophie Lafaille, Todd A. Girard |
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Rok vydání: | 2015 |
Předmět: |
Adult
Male 050103 clinical psychology Emotions Psychopathy Developmental psychology White matter 03 medical and health sciences 0302 clinical medicine 5. Gender equality Arts and Humanities (miscellaneous) Fractional anisotropy Image Processing Computer-Assisted medicine Humans 0501 psychology and cognitive sciences Child Pedophilia General Psychology Brain Mapping Sex Offenses 05 social sciences 16. Peace & justice medicine.disease White Matter Hebephilia Diffusion Tensor Imaging medicine.anatomical_structure Sexual abuse Case-Control Studies Female Sex offense Psychology 030217 neurology & neurosurgery Diffusion MRI |
Zdroj: | Archives of Sexual Behavior. 44:2161-2172 |
ISSN: | 1573-2800 0004-0002 |
Popis: | Pedophilia is a principal motivator of child molestation, incurring great emotional and financial burdens on victims and society. Even among pedophiles who never commit any offense,the condition requires lifelong suppression and control. Previous comparison using voxel-based morphometry (VBM)of MR images from a large sample of pedophiles and controls revealed group differences in white matter. The present study therefore sought to verify and characterize white matter involvement using diffusion tensor imaging (DTI), which better captures the microstructure of white matter than does VBM. Pedophilics ex offenders (n=24) were compared with healthy, age-matched controls with no criminal record and no indication of pedophilia (n=32). White matter microstructure was analyzed with Tract-Based Spatial Statistics, and the trajectories of implicated fiber bundles were identified by probabilistic tractography. Groups showed significant, highly focused differences in DTI parameters which related to participants’ genital responses to sexual depictions of children, but not to measures of psychopathy or to childhood histories of physical abuse, sexual abuse, or neglect. Some previously reported gray matter differences were suggested under highly liberal statistical conditions (p(uncorrected) |
Databáze: | OpenAIRE |
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