Background: Posttraumatic stress disorder (PTSD) is characterized by dysregulated arousal and altered cardiac autonomic response as evidenced by decreased high-frequency heart rate variability (HF-HRV), an indirect measure of parasympathetic modulation of the heart. Indeed, subtle threatening cues can cause autonomic dysregulation, even without explicit awareness of the triggering stimulus. Accordingly, examining the neural underpinnings associated with HF-HRV during both sub- and supraliminal exposure to trauma-related cues is critical to an enhanced understanding of autonomic nervous system dysfunction in PTSD.
View Article and Find Full Text PDFCritical race theory asserts that microaggressions, or low-level, covert acts of aggression, are commonplace in the lives of people of color. These theorists also assert a taxonomy of microaggressions, which includes "microassaults," "microinsults," and "microinvalidations". The theory of microaggressions has been adopted by researchers of LGBTQ communities.
View Article and Find Full Text PDFPsychol Trauma
January 2015
We investigated the relationship of implicit and explicit memory to a range of symptoms in a sample of 27 women with exposure to chronic interpersonal violence (IPV). Participants viewed the first 3 letters ("stems") of trauma-related, general threat, and neutral words; valenced words were matched with neutral words with the same stem. Free recall and a word-stem completion task were used to test explicit and implicit memory, respectively.
View Article and Find Full Text PDFRecently, a new diagnostic construct, developmental trauma disorder (DTD), was proposed to describe the effects of chronic exposure to violence in combination with disruptions in caregiving systems. This study uses archival data to field test the consensus proposed diagnostic criteria for DTD in a sample of urban children (N = 214). Children with complex trauma histories as defined in the proposed DTD Criterion A were much more likely to meet the proposed DTD symptom criteria than children who did not meet the exposure criterion.
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