A structured interview of 30 items to assess and diagnose PTSD and its symptoms. The complete interview ranges from 45 to 60 minutes. Standardized questions center around the start and duration of symptoms, feelings of distress, impact of symptoms in social settings, improvement in symptoms relative to previous CAPS administration, PTSD severity, response validity, and dissociative symptoms (depersonalization and derealization).

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All four studies made use of the Clinician-Administered PTSD Scale for DSM-5 (CAPS) and structured interview for Disorders of Extreme Stress (SIDES) diagnostic tools. For neuroimaging, three studies used functional MRI while one used structural MRI.

Childhood abuse c-PTSD neuroimaging studies: Methods

Weathers, F.W., Blake, D.D., Schnurr, P.P., Kaloupek, D.G., Marx, B.P., & Keane, T.M. (2013). The Clinician-Administered PTSD Scale for DSM-5 (CAPS-5). [Assessment] https://www.ptsd.va.gov/professional/assessment/adult-int/caps.asp

Clinician-Administered PTSD Scale for DSM-5 (CAPS-5)

A type of MRI that produces images that have a high contrast between gray and white matter. Can be used to detect macroscopic abnormalities.

Structural magentic resonance imaging (sMRI)

Functional Magnetic Resonance Imaging (fMRI) operates on the same principles as MRI but focuses on revealing changes in brain activity over time. It achieves this by tracking variations in blood flow and oxygen levels, as increased neural activity in a brain region requires more oxygenated blood. This allows researchers to map which parts of the brain are active during specific cognitive processes.

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