Gary was appointed to the School of Psychology as Established Professor of Psychology in July 2013. Following undergraduate and postgraduate training at UCD, Garycompleted his clinical training at Trinity College Dublin. Gary subsequently undertook a research fellowship in department of psychiatry at TCD, where he earned a PhD in Cognitive genomics and began the cognitive genomics lab. He was appointed an assistant professor in TCDs School of medicine in 2006, and associate professor in 2009, where he was responsible for the school of medicine psychology program until 2013. Garys research focuses on understanding the genetic and neural basis of cognitive deficits associated with psychosis, and the development of therapeutic programs for overcoming these deficits. co-leads the Cognitive Genetics and Cognitive Therapy (CogGene) group, members of which are based between the schools of psychology, biochemistry, and pharmacology. In 2015 Gary became the founding director of the Neuroimaging and Cognitive Genomics Research Center (NICOG), the goal of which isbuild on the synergistic activities of researchers from neuroimaging, cognitive neuroscience and psychiatric genetics at the university of Galway. In 2016, Gary was the recipient of a European Research Council fellowship award for his work on the contribution of the immune system to cognition in schizophrenia. In 2020 he was granted a Health research Board Research Leaders Award in youth mental health to work alongside the national early intervention in psychosis program. He was elected to the Royal Irish academy in 2022. Gary has published ~300 peer reviewed articles, which have been cited more than 40,000 times. As a qualified clinical psychologist, neuropsychologist, and advanced certified schema psychotherapist, Garycontinues to be clinically active in adult and young adult mental health service delivery.

Garys research group,a target=_blank rel=nofollow href=http:www.nuigalway.iepsychologycoggene_group.htmlthe CogGene group studies how brain structure and function are affected by genetic risk factors for psychosis using neuropsychology, MRI and EEG. Aspects of brain structure, such as brain volume and white matter integrity, and brain functions, such as cortical activations that occur during information processing, are likely to mediate the effects of genetic risk variants on illness. This work draws on neuropsychological, electrophysiological, and neuro-imaging techniques for investigating the role of gene function at the level of individual brain systems.This work has led to a number of important insights into newly discovered risk genes for psychosis. As part of this work the group is actively involved in developing psychological therapies for major mental health disorders, including therapies that address cognitive deficits in schizophrenia.The group participates in several international consortia focused on the genetics of psychosis and the genetics of brain structure and function, including the ENIGMA consortium, and the Psychiatric Genomics Consortium (PGC).The work of the Cognitive genetics and cognitive therapy group is generously funded by several national and international sources, the European Research Council, Foundation Ireland (SFI), The health Research Board (HRB), the Irish Research Council, and Science Foundation Ireland.