Browsing Psychiatry (Theses and Dissertations) by Title
Now showing items 17-36 of 74
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Electroconvulsive therapy for depression : optimising treatment and exploring molecular mechanisms
(Trinity College (Dublin, Ireland). School of Medicine. Discipline of Psychiatry, 2016)The objective of this project was to explore clinical and molecular aspects of electroconvulsive therapy (ECT) in the treatment of depression, with a particular focus on the role of microRNAs (small, non-coding molecules ... -
Electroconvulsive therapy for depression and ketamine for relapse prevention: factors affecting response, cognition and research participation
This thesis comprises five clinical research studies. Study 1. Pilot randomised controlled trial: Ketamine vs midazolam for depression relapse prevention following successful electroconvulsive therapy (ECT), the ... -
Electrophysiological event-related-potentials & their association with genome-wide-associated risk variants in schizophrenia
(Trinity College (Dublin, Ireland). School of Medicine. Discipline of Psychiatry, 2012)This thesis describes the use of electrophysiological event- related-potentials as a method for understanding, at the cortical level, the functional significance of putative schizophrenia susceptibility genes identified ... -
Exploring Neurocognitive Factors Underlying Autism and Hyperphagia in Prader-Willi Syndrome
(Trinity College Dublin. School of Medicine. Discipline of Psychiatry, 2024)Background: Prader-Willi Syndrome (PWS) is a rare complex multisystem genetic disorder recognised as the most common genetic cause of life-threatening obesity in humans (Butler, 1996). The PWS genotype gives rise to a ... -
Exploring the Experience of Shame in Adult Survivors of Childhood Sexual Abuse Using a Mixed-Methods Approach
(Trinity College Dublin. School of Medicine. Discipline of Psychiatry, 2024)Childhood sexual abuse (CSA) is a worldwide problem that increases survivors' likelihood of experiencing a range of physical and mental health conditions. Survivors often feel, or are made to feel, shame surrounding their ... -
Exploring the molecular mechanisms of Rett syndrome
(Trinity College Dublin. School of Medicine. Discipline of Psychiatry, 2020)Rett Syndrome (RTT) is a severe neurological disorder that onsets between 6 to 18 months of age, after a period of apparently normal development. RTT affects approximately 1 in every 10000 to 15000 live births and is ... -
Family-based association and molecular genetic analysis of genes implicated in the aetiology of autism
(Trinity College (Dublin, Ireland). School of Medicine. Discipline of Psychiatry, 2009)Autism is an early onset neurodevelopmental disorder affecting three core areas of behaviour - communication, social behaviour and restricted/repetitive behaviour. Although family and twin studies indicate a genetic ... -
Frailty in an older population : the impact on community-dwelling elders, dementia patients and older caregivers
(Trinity College (Dublin, Ireland). School of Medicine. Discipline of Psychiatry, 2012)Frailty represents one of the greatest gerontological challenges faced by societies in coming years. Growing numbers of older citizens leads not only to increasing numbers of healthy elders, but also frail and disabled elders. -
Fuctional and structural brain changes in ageing related to emotional processing
(Trinity College (Dublin, Ireland). School of Medicine. Discipline of Psychiatry, 2012)Of all mental abilities emotional processing is well-preserved in healthy ageing. In spite of this, the neural substrates of emotional processing in ageing are still not fully understood. In this project several experiments ... -
Functional investigation of neurodevelopmental effects of DISC1 and related psychosis risk genes
(Trinity College (Dublin, Ireland). School of Medicine. Discipline of Psychiatry, 2015)Schizophrenia (SCZ) is a severe neurodevelopmental disorder, which affects about 1% of the population worldwide, and whose symptoms start during early adulthood. SCZ is determined by the interaction of genetic and environmental ... -
Functional neural differences in emotional regualtion between patients with MDD and healthy controls in the context of the vulnerability factors : family history of MDD, BDNF Val66Met polymorphism
(Trinity College (Dublin, Ireland). School of Medicine. Discipline of Psychiatry, 2012)Emotional regulation is a key mechanism which shows disturbances during major depressive disorder (MDD), and which may be modified by certain factors enhancing vulnerability to MDD. Two vulnerability factors were tested ... -
Genetic and molecular studies of rare variation in schizophrenia
(Trinity College (Dublin, Ireland). School of Medicine. Discipline of Psychiatry, 2014)Schizophrenia (SCZ) is a severe and debilitating disorder and it has a worldwide prevalence estimated at approximately 1%. The underlying pathogenesis of SCZ is poorly understood and there is a great need for diagnostic ... -
High dose right unilateral versus moderate dose bilateral ECT for major depression : time to re-orientation, physical functioning, quality of life and attitudes
(Trinity College (Dublin, Ireland). School of Medicine. Discipline of Psychiatry, 2012)The objective of this study was to compare the effects of 1.5 x seizure threshold (ST) bitemporal ECT with high dose (6 x ST) right unilateral (RUL) ECT with respect to immediate recovery from treatment, change in physical ... -
The hippocampus, amygdala and their principal output tracts in major depressive disorder
(Trinity College Dublin. School of Medicine. Discipline of Psychiatry, 2019)Major depressive disorder is a common, debilitating illness. Despite its high prevalence rate and global disease burden, the biological mechanisms underlying this disorder remain largely unknown. Evidence points towards ... -
Implications of cortical structure and connectivity in autism spectrum disorder
(Trinity College (Dublin, Ireland). School of Medicine. Discipline of Psychiatry, 2015)Autism spectrum disorder (ASD) is a neurodevelopmental disorder characterised by early-onset deficits in social communication and interaction together with recurrent restricted repetitive behaviours (APA, 2013). Insights ... -
The importance of cognitive deficits for forensic mental health patients with schizophrenia or schizoaffective disorder
(Trinity College Dublin. School of Medicine. Discipline of Psychiatry, 2020)Forensic Mental Health Services (FMHS) provide care and treatment to a minority of people with mental illness like schizophrenia or schizoaffective disorder, who come into contact with law enforcement agencies (Kennedy et ... -
India's Mental Healthcare Act, 2017 Evaluation of the Act, its Context and Initial Implementation
(Trinity College Dublin. School of Medicine. Discipline of Psychiatry, 2022)The United Nations has initiated a paradigmatic shift in mental healthcare through the United Nations Convention on the Rights of Persons with Disabilities (CRPD), in addition to this the WHO has identified legislation as ... -
Inflammatory markers of antipsychotic weight gain and cardiometabolic dysfunction in youth mental health disorders
Second generation antipsychotics (SGAs) are used in children and adolescents to treat psychotic symptoms in Early Onset Psychosis (EOP) and irritability and behaviours that challenge in autism spectrum disorder (ASD). ... -
Interferon-alpha-induced cognitive and affective impairments : contributions of prefrontal cortex and hippocampal formation
(Trinity College (Dublin, Ireland). School of Medicine. Discipline of Psychiatry, 2009)Interferon-alpha (IFN-a) is a potent antiviral agent useful in the treatment of many malignancies, but most widely used in the treatment of Hepatitis C. However, sinister adverse events appear as a consequence of ... -
Investigating clinically relevant phenotypes of neurodevelopmental copy number variants in Children and Adults
(Trinity College Dublin. School of Medicine. Discipline of Psychiatry, 2021)Background: Neurodevelopmental copy number variants (ND CNVs) present with clinically pleiotropic effects, transcending psychiatric diagnostic borders. Gaining clarity on the neurodevelopmental and psychiatric phenotypic ...
