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Full-Text Articles in Medicine and Health Sciences

Dimensions Of Suicidality: Analyzing The Domains Of The Sis-Map Suicide Risk Assessment Instrument And The Development Of A Brief Screener, Megan Johnston, Charles Nelson, Amresh Shrivastava Jun 2013

Dimensions Of Suicidality: Analyzing The Domains Of The Sis-Map Suicide Risk Assessment Instrument And The Development Of A Brief Screener, Megan Johnston, Charles Nelson, Amresh Shrivastava

Amresh Srivastava

This study aimed at validating the domains of suicidality assessed by the Scale for Impact of Suicidality—Management, Assessment and Planning of Care (SISMAP) and creating a brief screener based on the full scale. A total of 50 individuals with suicidal ideation were given the SIS-MAP interview. Support was found for these domains of suicide risk; in particular, the subscales of ideation and protective factors for suicide risk were highly reliable. For each domain of suicidality, items most predictive of total risk index scores were selected to create a brief screener aimed at expediting the assessment process. The screener was reliable, …


Resilience, Psychopathology And Rehospitalization, Amresh Srivastava May 2013

Resilience, Psychopathology And Rehospitalization, Amresh Srivastava

Amresh Srivastava

Purpose: The goal of the project was to determine why patients are being hospitalized repeatedly within an acute psychiatric facility. Past studies have found repeated hospitalization leads to economic drain, disability, poor outcome, stigma and discrimination. Repeated hospitalizations are one of the main causes of disability and dysfunction amongst the mentally ill as well as consuming more than 90 % of the mental health budget. This drain deprives consumers of a major part of allocated health resources. Identifying the potential risk factors for repeated hospitalization, interrelationships between risk factors, and vulnerability will help us take the appropriate measures to prevent …


Cannabis And Psychosis: Transition To Psychosis, Amresh Srivastava, Kristen , Terpstra, Yves Bureau May 2013

Cannabis And Psychosis: Transition To Psychosis, Amresh Srivastava, Kristen , Terpstra, Yves Bureau

Amresh Srivastava

Cannabis has been implicated as a risk factor for the development of schizophrenia, however, but the pathway of cannabis causing psychosis is not well understood. It appears that cannabis does not cause any structural changes per say but deficits in areas of the brain responsible for memory and emotion do show some changes. Recent studies suggest that cannabinoids such as CB1 have a pharmacological profile similar to that of atypical antipsychotic drugs. This mechanisms may involve dopamine, GABA, and glutamate neurotransmission; It is still not known if these changes are transitory or permanent, and whether or not they contribute to …


Pathways To Psychosis In Cannabis Abuse, Amresh Srivastava Feb 2013

Pathways To Psychosis In Cannabis Abuse, Amresh Srivastava

Amresh Srivastava

Cannabis has been implicated as a risk factor for the development of schizophrenia, but the exact biological mechanisms remain unclear. In this review, we attempt to understand the neurobiological pathways that link cannabis use to schizophrenia. This has been an area of great debate; despite similarities between cannabis users and schizophrenia patients, the evidence is not sufficient to establish cause-and-effect. There have been advances in the understanding of the mechanisms of cannabis dependence as well as the role of the cannabinoid system in the development of psychosis and schizophrenia. The neurobiological mechanisms associated with the development of psychosis and effects …