Israel Liberzon

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Fear conditioning has been commonly used as a model of emotional learning in animals and, with the introduction of functional neuroimaging techniques, has proven useful in establishing the neurocircuitry of emotional learning in humans. Studies of fear acquisition suggest that regions such as amygdala, insula, anterior cingulate cortex, and hippocampus play(More)
The Psychiatric Genomics Consortium-Posttraumatic Stress Disorder group (PGC-PTSD) combined genome-wide case-control molecular genetic data across 11 multiethnic studies to quantify PTSD heritability, to examine potential shared genetic risk with schizophrenia, bipolar disorder, and major depressive disorder and to identify risk loci for PTSD. Examining 20(More)
Social threat can have adverse effects on cognitive performance, but the brain mechanisms underlying its effects are poorly understood. We investigated the effects of social evaluative threat on working memory (WM), a core component of many important cognitive capabilities. Social threat impaired WM performance during an N-back task and produced widespread(More)
Nearly 64% of people with mild traumatic brain injury (MTBI) experience prolonged symptoms and functional impairments lasting months or years postinjury. Explanations for delayed recovery have varied and lacked a guiding framework, hindering intervention science. Using theory substruction and adapting McLean and associates' biopsychosocial model for chronic(More)
Posttraumatic stress disorder (PTSD)—a chronic, debilitating condition, broadly characterized by emotion dysregulation—is prevalent among US military personnel who have returned from Operations Enduring Freedom (OEF) and Iraqi Freedom (OIF). Selective serotonin reuptake inhibitors (SSRIs) are a first-line treatment for PTSD, but treatment mechanisms are(More)
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