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Schizophrenia

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Articles 1 - 30 of 53

Full-Text Articles in Mental Disorders

Using Fmri To Assess Effectiveness Of Olanzapine Treatment For Schizophrenia, William Kyle Copenhaver, David F. Lo, Hanna Rothenberg, Eeshan Khurana, Valerie Rome, Uzayr Wasif, Don D. Shamilov May 2024

Using Fmri To Assess Effectiveness Of Olanzapine Treatment For Schizophrenia, William Kyle Copenhaver, David F. Lo, Hanna Rothenberg, Eeshan Khurana, Valerie Rome, Uzayr Wasif, Don D. Shamilov

Rowan-Virtua Research Day

Schizophrenia is a complex mental illness with neurobiological underpinnings and misconceptions about violence. Schizophrenia is associated with high levels of creativity and structural traits like fewer D2 receptors. Patients face reduced life expectancy due to cardiovascular diseases and cope through smoking and sedentariness. Treatment involves pharmacological antipsychotics like olanzapine and nonpharmacological approaches. Olanzapine works by antagonizing D2 receptors but has side effects like weight gain and diabetes risk. fMRI is used to study treatment mechanisms and predict response, but research on olanzapine's brain network effects is limited.


Alpha 7 Nicotinic Acetylcholine Receptor Expression In The Hippocampus Of Patients With Schizophrenia, Shruti Varshney, Ananya Nethikunta, Minjal Patel, Mary Kosciuk, Randel L. Swanson, Venkat Venkataraman, Robert Nagele, Eric Goldwaser, Nimish Acharya May 2024

Alpha 7 Nicotinic Acetylcholine Receptor Expression In The Hippocampus Of Patients With Schizophrenia, Shruti Varshney, Ananya Nethikunta, Minjal Patel, Mary Kosciuk, Randel L. Swanson, Venkat Venkataraman, Robert Nagele, Eric Goldwaser, Nimish Acharya

Rowan-Virtua Research Day

Background: Schizophrenia (SZ) is a heterogenous psychiatric condition characterized by disruptions in cognition, social activity, affect, and perception often associated with a varied combination of positive and negative symptoms. The pathophysiology behind SZ remains poorly elucidated. Earlier reports have cited the importance of the alpha 7 nicotinic acetylcholine receptors (α7nAChR) in the hippocampus and the receptor’s association with auditory sensory gating and cognitive function. Specifically, variations in the expression and functionality of α7nAChR can be linked to auditory hallucinations experienced by patients with SZ and several therapies have been researched that target α7nAChRs. However, there are very few primary research …


Lai Antipsychotics Vs. Oral Antipsychotics: Treatment Adherence, Relapses, And Readmissions, Natalie N. Lewis Bsn, Rn, Mallory F. Johnson Bsn, Rn-Bc, Tyler N. Halle-Todd Bsn, Rn, Natalie N. Ragland Bsn, Rn, Sharon H. Little Dnp, Aprn, Fnp-Bc, Jacqueline Sharp Dnp, Aprn,Pmhnp-Bc Apr 2024

Lai Antipsychotics Vs. Oral Antipsychotics: Treatment Adherence, Relapses, And Readmissions, Natalie N. Lewis Bsn, Rn, Mallory F. Johnson Bsn, Rn-Bc, Tyler N. Halle-Todd Bsn, Rn, Natalie N. Ragland Bsn, Rn, Sharon H. Little Dnp, Aprn, Fnp-Bc, Jacqueline Sharp Dnp, Aprn,Pmhnp-Bc

Doctor of Nursing Practice Projects

Purpose/Background

Schizophrenia is a lifelong illness with recurrent and often debilitating symptoms that may impair daily functioning, cognition, behaviors, socialization, emotions, and expression. It is recognized as a global mental health burden that affects the individual, their family, and society. Medication nonadherence and resulting relapse detrimentally affect the patient’s physical and mental health and quality of life. They are associated with increased hospitalization and emergency room visits, substance use, suicide, and homelessness. Current guidelines endorse second-generation antipsychotics such as Risperidone and Aripiprazole as the first-line treatment for most cases of psychosis. However, long-acting injectable (LAIs) atypical antipsychotics are a promising …


The Image Of Schizophrenia In Spain's Healthcare System, Meghan Webb Jan 2024

The Image Of Schizophrenia In Spain's Healthcare System, Meghan Webb

CISLA Senior Integrative Projects

Schizophrenia affects thousands of people in Spain and is one of the most serious mental health disorders in existence. Despite its this characteristic, schizophrenia did not always get the proper attention it deserved within the country’s healthcare system. This was largely due to the influence that the Spanish government had, and continues to have, over the healthcare system, giving it the power to choose how the disorder was represented. Therefore, what does that mean for schizophrenia in Spain’s healthcare system today? This essay will explore the ways in which schizophrenia was represented in Spain’s healthcare system through an examination of …


Representation Of Racial And Ethnic Minorities And Their Preferences For Mood Stabilizing Treatment Selection For Bipolar Disorder: A Systematic Review, Francisco J. Barrera, Manuel Gardea, Juan Garzon, Ryan Toledo, Ana Paula Bonner, Andrea Maraboto, Mark Frye, Ihsan Salloum Sep 2023

Representation Of Racial And Ethnic Minorities And Their Preferences For Mood Stabilizing Treatment Selection For Bipolar Disorder: A Systematic Review, Francisco J. Barrera, Manuel Gardea, Juan Garzon, Ryan Toledo, Ana Paula Bonner, Andrea Maraboto, Mark Frye, Ihsan Salloum

Research Symposium

Background: The use of second-generation antipsychotics for bipolar disorder (BD) has increased in the past years1Concerns on potential serious medical side effects and need for blood level monitoring of some traditional mood stabilizers along with other factors have influenced this change. Shared decision-making (SDM) strategies have been implemented in clinical settings due to their ability to engage patients in the process of treatment selection.2 Within minority groups with mental illnesses, socioeconomic factors, individual concerns, and cultural variations in clinical presentations, are often overlooked or misrepresented when assessing the patient’s treatment preferences. Although several studies evaluating the …


Development Of Schizophrenia In A Genetically Predisposed Individual Following Covid-19, Sung Kang, Jonathan Yuh, Timothy Wong May 2023

Development Of Schizophrenia In A Genetically Predisposed Individual Following Covid-19, Sung Kang, Jonathan Yuh, Timothy Wong

Rowan-Virtua Research Day

We present a patient who is a 56-year-old female with a psychiatric history of anxiety disorder and a medical history of hypercholesterolemia and hyperthyroidism, who was admitted to the hospital after a witnessed seizure at an inpatient psychiatric facility. This patient’s family history is significant for her mother experiencing unspecified psychotic disorder that required psychiatric hospitalization. Our patient was first admitted to the psychiatric hospital after exhibiting worsening paranoid delusions and hallucinations that began several months prior. The patient had reportedly begun locking herself in the restroom and screaming “get out, they’re spying on me”, referring to her next-door neighbors …


The Relationship Between Quality Of Life And Functionality In Patients With Schizophrenia – A Preliminary Report, Vlad Dionisie, Mihnea Costin Manea, Manea Mirela, Lavinia Steluta Bonciu, Sorin Riga, Maria Gabriela Puiu Apr 2023

The Relationship Between Quality Of Life And Functionality In Patients With Schizophrenia – A Preliminary Report, Vlad Dionisie, Mihnea Costin Manea, Manea Mirela, Lavinia Steluta Bonciu, Sorin Riga, Maria Gabriela Puiu

Journal of Mind and Medical Sciences

This research aimed to investigate the relationship between quality of life and level of functioning in a group of Romanian patients with schizophrenia. A cross-sectional, observational, prospective study on 47 patients with schizophrenia was conducted. Socio-demographic and clinical data were documented and WHOQOL-BREF and Life Skills Profile-16 instruments were further administered. To examine the correlation between variables, Person correlation test was employed. The mean age of the sample was 38.32±12.32 years and 66% of the patients were males. Significant correlations were found between all aspects of the quality of life (physical health, psychological, social relationships and environmental health) and total …


Supersensitivity Psychosis With Acute Dystonia, Tatiana Nunez, Gabriella Meyerson, Mays Alani, Shahid Elahi, Enrique Vargas Feb 2023

Supersensitivity Psychosis With Acute Dystonia, Tatiana Nunez, Gabriella Meyerson, Mays Alani, Shahid Elahi, Enrique Vargas

HCA Healthcare Journal of Medicine

Introduction

Supersensitivity psychosis is a phenomenon that occurs with chronic usage of antipsychotics secondary to treatment resistance. At this time, there are no standardized guidelines regarding the management of supersensitivity psychosis.

Case Presentation

We present a case of a patient with schizoaffective disorder who developed supersensitivity psychosis and acute dystonia in response to discontinuing psychotropic medications, including high-dose quetiapine and olanzapine. The patient presented with excessive anxiety, paranoia, bizarre thoughts, and generalized dystonia affecting the face, trunk, and extremities. We treated the patient with olanzapine, valproic acid, and diazepam, which alleviated the psychosis back to baseline and significantly improved the …


Data-Driven Neuroanatomical Subtypes In Various Stages Of Schizophrenia: Linking Cortical Thickness, Glutamate, And Language Functioning, Liangbing Liang Dec 2022

Data-Driven Neuroanatomical Subtypes In Various Stages Of Schizophrenia: Linking Cortical Thickness, Glutamate, And Language Functioning, Liangbing Liang

Electronic Thesis and Dissertation Repository

The considerable variation in the spatial distribution of cortical thickness changes has been used to parse heterogeneity in schizophrenia. We aimed to recover a ‘cortical impoverishment’ subgroup with widespread cortical thinning. We applied hierarchical cluster analysis to cortical thickness data of three datasets in different stages of psychosis and studied the cognitive, functional, neurochemical, language and symptom profiles of the observed subgroups. Our consensus-based clustering procedure consistently produced a subgroup characterized by significantly lower cortical thickness. This ‘cortical impoverishment’ subgroup was associated with a higher symptom burden in a clinically stable sample and higher glutamate levels with language impairments in …


Homoeopathy As An Add-On Treatment For Schizophrenia - A Case Series, S Karunakara Moorthi, Radhika P, Mohan N. Devasia Jun 2022

Homoeopathy As An Add-On Treatment For Schizophrenia - A Case Series, S Karunakara Moorthi, Radhika P, Mohan N. Devasia

Indian Journal of Research in Homoeopathy

Introduction: Schizophrenia is a complex, progressive and severe mental disorder characterised by distortions in thinking, perception, emotions, language, sense of self and behaviour. Conventional medication and cognitive behaviour therapy are used in the treatment of schizophrenia. Homoeopathy can also offer promising results in schizophrenia as evident from the previous studies. Case Summary: Five patients reported at the outpatient department of National Homoeopathy Research Institute in Mental Health, Kerala, India, with symptoms of schizophrenia were treated with individualised homoeopathic medicine as an add-on therapy to conventional medicines. Assessment of the patients was done using three scales: Positive and Negative Syndrome Scale, …


A Life Lived With Schizophrenia: When Mother’S Love Is Kept In The Dark Exploring Maternal Communication And Attachment Organization In Families With Schizophrenia, Myrsini Stefanidou Marini May 2022

A Life Lived With Schizophrenia: When Mother’S Love Is Kept In The Dark Exploring Maternal Communication And Attachment Organization In Families With Schizophrenia, Myrsini Stefanidou Marini

Electronic Theses and Dissertations

In recent years, research into the transgenerational transmission of attachment styles has shown that a mother’sattachment style often predicts the attachment style of her infant. Fearsome parental behavior has been found to predict disorganized attachment in infants, which is further associated with a range of mental health disturbances in adolescence. Furthermore, regular patterns of disturbed communication between mother and child have also been found to lead to ‘schizophrenic’ thinking and behavior in the child’s life. While acknowledging that genetic and other biological factors contribute to the emergence of schizophrenia, this study focused on disorganized attachment and disturbed communication between mother …


Evaluating The Use Of Long-Acting Injectables As A Method To Improve Treatment Adherence In Patients With Schizophrenia: A Scoping Review, Britney Michelle Holton Msn, Fnp-Bc, Patricia Rena Jones-Purdy Msn, Cnrn, Margaret Harvey Phd, Aprn, Acnp-Bc, Chfn Apr 2022

Evaluating The Use Of Long-Acting Injectables As A Method To Improve Treatment Adherence In Patients With Schizophrenia: A Scoping Review, Britney Michelle Holton Msn, Fnp-Bc, Patricia Rena Jones-Purdy Msn, Cnrn, Margaret Harvey Phd, Aprn, Acnp-Bc, Chfn

Doctor of Nursing Practice Projects

Purpose/Background Medication adherence is a major issue for patients suffering from schizophrenia and medication non-adherence can lead to psychiatric morbidity. Although long-acting injectable (LAI) antipsychotics have been shown to improve treatment adherence, most clinicians continue to rely on oral therapies to manage schizophrenia. This scoping review will assess evidence-based literature to determine the relationship between the use of LAIs and medication adherence in patients with schizophrenia.

Methods A literature review was conducted between August 2020 and January 2021 to find studies that have evaluated medication adherence with the use of long-acting injectables in patients with schizophrenia. Relevant literature initially selected …


A Comparison Of Stigma Levels For Individuals With Psychological Disorders And Individuals With Intellectual Disabilities, Isabella E. Wood Apr 2022

A Comparison Of Stigma Levels For Individuals With Psychological Disorders And Individuals With Intellectual Disabilities, Isabella E. Wood

Honors Theses

This study compared nine aspects of stigmatization (blame, anger, pity, help, dangerousness, fear, avoidance, segregation, coercion) amongst schizophrenia, binge eating, and intellectual disabilities. The overall MANOVA was significant, F(18, 183) = 89.95, p < .001, Wilks’ Lambda = .10. When the results for the dependent variables were considered separately, all nine dependent variables reached significance (p < .001). Schizophrenia scored highest in all categories except blame and pity. Blame was the highest for binge eating and pity was the highest for intellectual disabilities. Efforts to reduce stigmatization must be tailored to each disorder.


Hallermann-Streiff Syndrome And Psychosis: A Case Report, Tarvis Peacock, Ubaid Khokhar, Jaclyn Murphy, Zach Murphy Feb 2022

Hallermann-Streiff Syndrome And Psychosis: A Case Report, Tarvis Peacock, Ubaid Khokhar, Jaclyn Murphy, Zach Murphy

HCA Healthcare Journal of Medicine

Hallermann-Streiff syndrome is a rare genetic congenital disorder, with fewer than 200 cases reported to date, that is characterized by brachycephaly with frontal bossing, micrognathia, a “bird-like” beaked nose, microphthalmia with congenital cataracts, dental abnormalities, hypotrichosis, skin atrophy, and short stature. There is limited data on psychosis in individuals with Hallermann-Streiff syndrome; the information available depicts mania rather than psychosis. This case report reviews the presentation and treatment of psychosis in a 32-year-old male with Hallermann-Streiff syndrome who was involuntarily admitted to an inpatient psychiatric unit for persecutory delusions and hallucinations. The patient’s psychosis responded well to risperidone with a …


Examination Of Common And Rare Variant Genetic Architecture Of Psychiatric Disorders, Mohammad Ahangari Jan 2022

Examination Of Common And Rare Variant Genetic Architecture Of Psychiatric Disorders, Mohammad Ahangari

Theses and Dissertations

Psychiatric disorders are often heterogenous in their manifestation and genome-wide association studies have identified many common risk variants involved in their polygenic architectures with varying degrees of pleiotropy. In recent years, large-scale biobanks have also begun sequencing the genome of their participants to elucidate the role of rare risk variation in the genetic architecture of complex phenotypes, including psychiatric traits. This dissertation sought to better understand the role of both common and rare risk variation in the genetic architecture of psychiatric disorders with a particular focus on schizophrenia and alcohol problems. In the first three analyses, we focused on characterizing …


Telemedicine In Schizophrenia, Stacy H. Williams Apr 2021

Telemedicine In Schizophrenia, Stacy H. Williams

MSN Capstone Projects

Schizophrenia is a chronic neurological brain disorder that affects approximately 2.6 million adults in the United States alone. This condition affects twenty million people worldwide according to the World Health Organization. “Patients with schizophrenia often die at a considerably younger age than the rest of the population,” (Wallace, 2017). The treatment of this condition is complex because of the array of different symptoms and presented behaviors. Treatment consists of targeting the symptoms. This is done with medication and psychotherapeutics treatments. ‘Despite continued therapeutic advances, the life expectancy of patients with schizophrenia is reduced by approximately 10-25 years compared to that …


Patterns Of Cilia Gene Dysregulations In Major Psychiatric Disorders, Wedad Alhassen, Siwei Chen, Marquis Vawter, Brianna Kay Robbins, Henry Nguyen, Thant Nyi Myint, Yumiko Saito, Anton Schulmann, Surya M. Nauli, Olivier Civelli, Pierre Baldi, Amal Alachkar Jan 2021

Patterns Of Cilia Gene Dysregulations In Major Psychiatric Disorders, Wedad Alhassen, Siwei Chen, Marquis Vawter, Brianna Kay Robbins, Henry Nguyen, Thant Nyi Myint, Yumiko Saito, Anton Schulmann, Surya M. Nauli, Olivier Civelli, Pierre Baldi, Amal Alachkar

Pharmacy Faculty Articles and Research

Primary cilia function as cells' antennas to detect and transduce external stimuli and play crucial roles in cell signaling and communication. The vast majority of cilia genes that are causally linked with ciliopathies are also associated with neurological deficits, such as cognitive impairments. Yet, the roles of cilia dysfunctions in the pathogenesis of psychiatric disorders have not been studied. Our aim is to identify patterns of cilia gene dysregulation in the four major psychiatric disorders: schizophrenia (SCZ), autism spectrum disorder (ASD), bipolar disorder (BP), and major depressive disorder (MDD). For this purpose, we acquired differentially expressed genes (DEGs) from the …


Schizophrenia And Genomics, Tiffini Lasch Jul 2020

Schizophrenia And Genomics, Tiffini Lasch

Nursing Student Class Projects (Formerly MSN)

There are several advancements in genomics under specific categories, such as cancer and autism. Mental health is one of the leading diseases to cause a significant debt burden in today's society. However, genomics has not translated well into mental health treatment. One area of focus is schizophrenia. Those with schizophrenia suffer from severe and devastating symptoms. The symptoms can lead to harsh complications. Which can make it impossible to function in everyday life. Many believe it is not just genetics alone, but also environmental factors that contribute to schizophrenia. Through large genome-wide associated studies, discoveries are being made. There have …


Assessing The Effect Of Chronic Dopamine Receptor 2 Blockade As A Potential Model Of Secondary Negative Symptoms In Rats Using The Fr5/Chow Feeding Choice Task, Cyrene Nicholas May 2020

Assessing The Effect Of Chronic Dopamine Receptor 2 Blockade As A Potential Model Of Secondary Negative Symptoms In Rats Using The Fr5/Chow Feeding Choice Task, Cyrene Nicholas

Honors Scholar Theses

Haloperidol, a dopamine (DA) D2 receptor antagonist, is an antipsychotic drug which is commonly used to treat schizophrenia and other psychiatric disorders. These disorders are often characterized by elevated striatal dopamine, which is speculated to have a role in producing positive symptoms such as hallucinations, delusions, and paranoia, as well as symptoms related to motivational salience and reward prediction. Individuals with schizophrenia also exhibit negative symptoms, such as amotivation, anergia, fatigue, and apathy among others. While some negative symptoms of schizophrenia are inherent to the pathophysiology, other negative symptoms are hypothesized to be partially induced by chronic exposure to antipsychotic …


Ontrack: A Program Evaluation, Justin Mynatt Dec 2019

Ontrack: A Program Evaluation, Justin Mynatt

Doctoral Projects

OnTrack is a program that provides coordinated specialty care (CSC) services for patients who have experienced their first episode of psychosis (FEP). Appropriately identifying and aggressively treating this vulnerable population, while providing support to both them and their families is critical for improved outcomes. Appropriate treatment of FEP patients can improve their quality of life, preserve brain matter, improve overall functioning, and lessen the burden of the clients’ family who may be involved in their care, such as caregiver strain or financial hardship. The purpose of this project is to evaluate the success of OnTrack, a FEP program, at improving …


Do Not Miss Your Shot: Improving Follow-Up In Patients Receiving Long-Acting Injectable Medications, Mary O'Hara May 2019

Do Not Miss Your Shot: Improving Follow-Up In Patients Receiving Long-Acting Injectable Medications, Mary O'Hara

Doctor of Nursing Practice Final Manuscripts

Background: Serious mental illness including schizophrenia and bipolar disorder affects 1 in 24 adults in California. These chronic disorders are difficult to treat and often sabotaged by medication nonadherence. Long-acting injectable (LAI) medications are one strategy to combat medication nonadherence. Effectively providing treatment with LAI medications can be challenging at the clinic level.

Objectives: Reduce the number of days without medication by reducing the number of days between injection due date and injection administration for patients receiving LAI medications.

Design: Establish appointments for all injection visits. Standardize visit protocol for injection encounters to optimize provider time. Arrange immediate follow-up and …


A Meta-Analytic Review Of Cognitive Functioning In Negative And Positive Symptoms Of Schizophrenia, Tiffany Forsythe May 2019

A Meta-Analytic Review Of Cognitive Functioning In Negative And Positive Symptoms Of Schizophrenia, Tiffany Forsythe

Electronic Theses and Dissertations

The purpose of the study was to conduct two meta-analytic reviews examining cognitive functioning and schizophrenia. The first review examined the literature comparing the cognitive functioning of schizophrenic patients to healthy controls. A second review examined the cognitive functioning within schizophrenic patients, examining the differences between individuals with primarily positive symptomatology and those with primarily negative symptomatology. The first meta-analysis included 19 studies which assessed 861 schizophrenic patients and 858 healthy volunteers overall. The second meta-analysis included 10 studies comparing the cognitive functioning of 1,263 schizophrenics across positive and negative symptoms. Results of the first review indicated that healthy controls …


The Effects Of Two Novel Anti-Inflammatory Compounds On Prepulse Inhibition And Neural Microglia Cell Activation In A Rodent Model Of Schizophrenia, Heath W. Shelton May 2019

The Effects Of Two Novel Anti-Inflammatory Compounds On Prepulse Inhibition And Neural Microglia Cell Activation In A Rodent Model Of Schizophrenia, Heath W. Shelton

Electronic Theses and Dissertations

Recent studies have shown elevated neuroinflammation in a large subset of individuals diagnosed with schizophrenia. A pro-inflammatory cytokine, tumor necrosis factor-alpha (TNFα), has been directly linked to this neuroinflammation. This study examined the effects of two TNFα modulators (PD2024 and PD340) produced by our collaborators at P2D Bioscience, Inc., to alleviate auditory sensorimotor gating deficits and reduce microglial cell activation present in the polyinosinic:polycytidylic (Poly I:C) rodent model of schizophrenia. Auditory sensorimotor gating was assessed using prepulse inhibition and microglial activation was examined and quantified using immunohistochemistry and confocal microscopy, respectively. Both PD2024 and PD340 alleviated auditory sensorimotor gating deficits …


Inviting Hallucinatory Percepts During Speech-Listening To Detect Cognitive Changes In Early Psychosis, Ana-Bianca Popa Oct 2018

Inviting Hallucinatory Percepts During Speech-Listening To Detect Cognitive Changes In Early Psychosis, Ana-Bianca Popa

Electronic Thesis and Dissertation Repository

Treatment outcomes for people with schizophrenia are more favourable if treatment starts early in the course of the disorder. Current detection methods lack specificity and do not make use of cognitive markers. We presented individuals experiencing a first episode of psychosis (FEP) and matched control participants with acoustically degraded meaningful and matched nonsense sentences to examine the degree to which people reported words that were not actually presented. Intrusion errors were counted when reported words were unrelated to words in the original sentence. Intelligibility (measured as words reported correctly) did not differ between groups but intrusion errors were more frequent …


Association Between A Single Nucleotide Polymorphism In Neuregulin-1 And Schizophrenia In Pakistani Patients, Haider Ali Naqvi, Shafqat Huma, Hira Waseem, Kashaf Aqeel Zaidi, Hina Saeed Zuberi, Syed Hani Abidi May 2018

Association Between A Single Nucleotide Polymorphism In Neuregulin-1 And Schizophrenia In Pakistani Patients, Haider Ali Naqvi, Shafqat Huma, Hira Waseem, Kashaf Aqeel Zaidi, Hina Saeed Zuberi, Syed Hani Abidi

Department of Biological & Biomedical Sciences

Objective: To determine the association of single-nucleotide polymorphism8nrg433E1006 in the neuregulin-1 gene associated with schizophrenia.
Methods: This case-control study was conducted at the Fountain House, Lahore, and the psychiatric clinics at the Aga Khan University, Karachi, from 2010 to 2013.The total genomic deoxyribonucleic acid was isolated and single-nucleotide polymorphism8nrg433E1006 was screened by nested polymerase chain reaction followed by sequencing. These sequences, from patients and controls, were aligned with the human neuregulin-1-glial growth factor 2 gene sequence, which served as a reference sequence. The single nucleotide polymorphism genetic algorithm was characterised at position 433 in the neuregulin-1 gene by …


Insane: James Holmes, Clark V. Arizona, And America's Insanity Defense, Eric Collins May 2018

Insane: James Holmes, Clark V. Arizona, And America's Insanity Defense, Eric Collins

Journal of Law and Health

Insanity is a legal term of art that changes definitions depending on the legal standard in American jurisprudence, which explains why a man who mental health professionals described as having an uncontrollable obsession with killing people can be found not insane and guilty. This Note addresses the current state of the Insanity Defense Reform Act of 1984 and its widespread implementation at the state level. Part II supplies background information on the history of the insanity defense and how it has transformed over the years in American jurisprudence. Part III provides an analysis of the of the insanity defense. Part …


Effort-Related Decision Making In Comt Variant Mice: Pharmacological Studies And Genetic Susceptibility To Motivational Dysfunction, Suzanne Cayer May 2018

Effort-Related Decision Making In Comt Variant Mice: Pharmacological Studies And Genetic Susceptibility To Motivational Dysfunction, Suzanne Cayer

Honors Scholar Theses

Effort-related decision making tasks in animals can model motivational symptoms in humans, which are a set of symptoms spanning a multitude of neuropsychiatric disorders, such as major depressive disorder and the negative symptoms of schizophrenia. The present studies aimed to evaluate the effort-related effects of the Val158Met polymorphism of human catechol-methyltransferase (COMT), by testing mice carrying either the human COMT Val (n=8) or Met allele (n=8) with Wild-Type control mice (n=15) by using concurrent FR2 and FR4/pellet choice tasks in a touchscreen operant conditioning apparatus. The Val158Met polymorphism has been repeatedly associated with neuropsychiatric disorders, and the Val allele has …


Sensory, Motor And Process Skills As Compared To Symptom Severity In Adult Patients With Schizophrenia, Lola Halperin Feb 2018

Sensory, Motor And Process Skills As Compared To Symptom Severity In Adult Patients With Schizophrenia, Lola Halperin

Occupational Therapy Faculty Publications

Schizophrenia is a serious mental illness affecting millions of Americans. It is characterized by positive and negative symptoms; cognitive impairments; and sensory, motor, and process skill deficits; as well as compromised motor learning, functional difficulties, and diminished quality of life. Neuroscientists attribute the above deficits to abnormal brain development, exaggerated synaptic pruning, and neurodegenerative processes, causing disrupted connectivity and diminished plasticity in the brain, neurotransmitter dysfunction, and impaired sensory processing.

Presently, there is no cure for schizophrenia. Numerous medications and rehabilitation modalities exist; however, many of the affected individuals continue to struggle daily. Recovery of these individuals implies symptom management …


Direct And Indirect Influences Of Defendant Mental Illness On Jury Decision Making, Marie Sabbagh Jan 2018

Direct And Indirect Influences Of Defendant Mental Illness On Jury Decision Making, Marie Sabbagh

The Pegasus Review: UCF Undergraduate Research Journal

It is a common misconception that individuals with schizophrenia are significantly more dangerous and violent than individuals free of mental illness. This stigmatization may lead to harsher sentences when people with schizophrenia are involved in criminal activities and sentenced by a jury. This study presented four conditions to which participants were randomly assigned, alone or in a group of three, and were asked to sentence a defendant, either with or without schizophrenia. It was hypothesized that group deliberations would result in more lenient sentences for defendants with schizophrenia as compared to individual deliberations. Furthermore, it was predicted that both group …


Computational Modeling Of Contrast Sensitivity And Orientation Tuning In Schizophrenia, Steven M. Silverstein, Docia L. Demmin, James A. Bednar May 2017

Computational Modeling Of Contrast Sensitivity And Orientation Tuning In Schizophrenia, Steven M. Silverstein, Docia L. Demmin, James A. Bednar

MODVIS Workshop

Computational modeling is being increasingly used to understand schizophrenia, but, to date, it has not been used to account for the common perceptual disturbances in the disorder. We manipulated schizophrenia-relevant parameters in the GCAL (gain control, adaptation, laterally connected) model (Stevens et al., 2013), run using the Topographica simulator (Bednar, 2012), to model low-level visual processing changes in the disorder. Our models incorporated: separate sheets for retinal, LGN, and V1 activity; gain control in the LGN; homeostatic adaptation in V1 based on a weighted sum of all inputs and limited by a logistic (sigmoid) nonlinearity; lateral excitation and inhibition in …