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Connectivity-guided intermittent theta burst versus repetitive transcranial magnetic stimulation for treatment-resistant depression: a randomized controlled trial (2024)
Journal Article
Morriss, R., Briley, P. M., Webster, L., Abdelghani, M., Barber, S., Bates, P., …Auer, D. P. (2024). Connectivity-guided intermittent theta burst versus repetitive transcranial magnetic stimulation for treatment-resistant depression: a randomized controlled trial. Nature Medicine, 30(2), 403–413. https://doi.org/10.1038/s41591-023-02764-z

Disruption in reciprocal connectivity between the right anterior insula and the left dorsolateral prefrontal cortex is associated with depression and may be a target for neuromodulation. In a five-center, parallel, double-blind, randomized controlled... Read More about Connectivity-guided intermittent theta burst versus repetitive transcranial magnetic stimulation for treatment-resistant depression: a randomized controlled trial.

Measurement of brain glutathione with magnetic Resonance spectroscopy in Schizophrenia-Spectrum disorders - A systematic review and Meta-Analysis. (2023)
Journal Article
Murray, A. J., Humpston, C. S., Wilson, M., Rogers, J. C., Zia Ul Haq Katshu, M., Liddle, P. F., & Upthegrove, R. (2024). Measurement of brain glutathione with magnetic Resonance spectroscopy in Schizophrenia-Spectrum disorders - A systematic review and Meta-Analysis. Brain, Behavior, and Immunity, 115, 3-12. https://doi.org/10.1016/j.bbi.2023.09.017

Oxidative stress may contribute to declining course and poor outcomes in psychosis. However, in vivo Magnetic Resonance Spectroscopy studies yield disparate results due to clinical stage, sample demographics, neuroanatomical focus, sample size, and a... Read More about Measurement of brain glutathione with magnetic Resonance spectroscopy in Schizophrenia-Spectrum disorders - A systematic review and Meta-Analysis..

Connectivity-Guided Theta Burst Transcranial Magnetic Stimulation Versus Repetitive Transcranial Magnetic Stimulation for Treatment-Resistant Moderate to Severe Depression: Magnetic Resonance Imaging Protocol and SARS-CoV-2–Induced Changes for a Randomized Double-blind Controlled Trial (2022)
Journal Article
Pszczolkowski, S., Cottam, W. J., Briley, P. M., Iwabuchi, S. J., Kaylor-Hughes, C., Shalabi, A., …Morriss, R. (2022). Connectivity-Guided Theta Burst Transcranial Magnetic Stimulation Versus Repetitive Transcranial Magnetic Stimulation for Treatment-Resistant Moderate to Severe Depression: Magnetic Resonance Imaging Protocol and SARS-CoV-2–Induced Changes for a Randomized Double-blind Controlled Trial. JMIR Research Protocols, 11(1), Article e31925. https://doi.org/10.2196/31925

Background: Depression is a substantial health and economic burden. In approximately one-third of patients, depression is resistant to first-line treatment; therefore, it is essential to find alternative treatments. Transcranial magnetic stimulation... Read More about Connectivity-Guided Theta Burst Transcranial Magnetic Stimulation Versus Repetitive Transcranial Magnetic Stimulation for Treatment-Resistant Moderate to Severe Depression: Magnetic Resonance Imaging Protocol and SARS-CoV-2–Induced Changes for a Randomized Double-blind Controlled Trial.

Design and Evaluation of Virtual Human Mediated Tasks for Assessment of Depression and Anxiety (2021)
Conference Proceeding
Egede, J. O., Jaiswal, S., Galvez Trigo, M. J., Price, D., Elliot, N., Nixon, N., …Valstar, M. (2021). Design and Evaluation of Virtual Human Mediated Tasks for Assessment of Depression and Anxiety. In IVA '21: Proceedings of the 21st ACM International Conference on Intelligent Virtual Agents (52-59). https://doi.org/10.1145/3472306.3478361

Virtual human technologies are now being widely explored as therapy tools for mental health disorders including depression and anxiety. These technologies leverage the ability of the virtual agents to engage in naturalistic social interactions with a... Read More about Design and Evaluation of Virtual Human Mediated Tasks for Assessment of Depression and Anxiety.

Motor-related oscillatory activity in schizophrenia according to phase of illness and clinical symptom severity (2020)
Journal Article
Gascoyne, L. E., Brookes, M. J., Rathnaiah, M., Zia Ul Haq Katshu, M., Koelewijn, L., Williams, G., …Morris, P. G. (2021). Motor-related oscillatory activity in schizophrenia according to phase of illness and clinical symptom severity. NeuroImage: Clinical, 29, Article 102524. https://doi.org/10.1016/j.nicl.2020.102524

Magnetoencephalography (MEG) measures magnetic fields generated by synchronised neural current flow and provides direct inference on brain electrophysiology and connectivity, with high spatial and temporal resolution. The movement-related beta decrea... Read More about Motor-related oscillatory activity in schizophrenia according to phase of illness and clinical symptom severity.

Regional Brain Correlates of Beta Bursts in Health and Psychosis: A Concurrent Electroencephalography and Functional Magnetic Resonance Imaging Study (2020)
Journal Article
Briley, P. M., Liddle, E. B., Simmonite, M., Jansen, M., White, T. P., Balain, V., …Liddle, P. F. (2021). Regional Brain Correlates of Beta Bursts in Health and Psychosis: A Concurrent Electroencephalography and Functional Magnetic Resonance Imaging Study. Biological Psychiatry: Cognitive Neuroscience and Neuroimaging, 6(12), 1145-1156. https://doi.org/10.1016/j.bpsc.2020.10.018

Background: There is emerging evidence for abnormal beta oscillations in psychosis. Beta oscillations are likely to play a key role in the coordination of sensorimotor information that is crucial to healthy mental function. Growing evidence suggests... Read More about Regional Brain Correlates of Beta Bursts in Health and Psychosis: A Concurrent Electroencephalography and Functional Magnetic Resonance Imaging Study.

Effective connectivity of the right anterior insula in schizophrenia: the salience network and task-negative to task-positive transition (2020)
Journal Article
Luo, Q., Pan, B., Gu, H., Simmonite, M., Francis, S., Liddle, P. F., & Palaniyappan, L. (2020). Effective connectivity of the right anterior insula in schizophrenia: the salience network and task-negative to task-positive transition. NeuroImage: Clinical, 28, Article 102377. https://doi.org/10.1016/j.nicl.2020.102377

Triple network dysfunction theory of schizophrenia postulates that the interaction between the default-mode and the fronto-parietal executive network is disrupted by aberrant salience signals from the right anterior insula (rAI). To date, it is not c... Read More about Effective connectivity of the right anterior insula in schizophrenia: the salience network and task-negative to task-positive transition.

Connectivity guided theta burst transcranial magnetic stimulation versus repetitive transcranial magnetic stimulation for treatment-resistant moderate to severe depression: study protocol for a randomised double-blind controlled trial (BRIGhTMIND) (2020)
Journal Article
Morriss, R., Webster, L., Abdelghani, M., Auer, D., Barber, S., Bates, P., …Walters, Y. (2020). Connectivity guided theta burst transcranial magnetic stimulation versus repetitive transcranial magnetic stimulation for treatment-resistant moderate to severe depression: study protocol for a randomised double-blind controlled trial (BRIGhTMIND). BMJ Open, 10(7), Article e038430. https://doi.org/10.1136/bmjopen-2020-038430

Introduction The BRIGhTMIND study aims to determine the clinical effectiveness, cost effectiveness and mechanism of action of connectivity guided intermittent Theta Burst Stimulation (cgiTBS) versus standard repetitive Transcranial Magnetic Stimulati... Read More about Connectivity guided theta burst transcranial magnetic stimulation versus repetitive transcranial magnetic stimulation for treatment-resistant moderate to severe depression: study protocol for a randomised double-blind controlled trial (BRIGhTMIND).

Quantifying the core deficit in classical schizophrenia (2020)
Journal Article
Rathnaiah, M., Liddle, E., Gascoyne, L., Kumar, J., Zia Ul Haq Katshu, M., Faruqi, C., …Liddle, P. F. (2020). Quantifying the core deficit in classical schizophrenia. Schizophrenia Bulletin Open, 1(1), Article sgaa031. https://doi.org/10.1093/schizbullopen/sgaa031

In the classical descriptions of schizophrenia, Kraepelin and Bleuler recognised disorganization and impoverishment of mental activity as fundamental symptoms. Their classical descriptions also included a tendency to persisting disability. The psycho... Read More about Quantifying the core deficit in classical schizophrenia.

Cortical thickness and formal thought disorder in schizophrenia: An ultra high-field network-based morphometry study (2020)
Journal Article
Palaniyappan, L., Al-Radaideh, A., Gowland, P. A., & Liddle, P. F. (2020). Cortical thickness and formal thought disorder in schizophrenia: An ultra high-field network-based morphometry study. Progress in Neuro-Psychopharmacology and Biological Psychiatry, 101, https://doi.org/10.1016/j.pnpbp.2020.109911

Background Persistent formal thought disorder (FTD) is a core feature of schizophrenia. Recent cognitive and neuroimaging studies indicate a distinct mechanistic pathway underlying the persistent positive FTD (pFTD or disorganized thinking), thoug... Read More about Cortical thickness and formal thought disorder in schizophrenia: An ultra high-field network-based morphometry study.

Development and validation of multivariable prediction models of remission, recovery, and quality of life outcomes in people with first episode psychosis: a machine learning approach (2019)
Journal Article
Schwannauer, M., Leighton, S. P., Upthegrove, R., Krishnadas, R., Benros, M. E., Broome, M. R., …Mallikarjun, P. K. (2019). Development and validation of multivariable prediction models of remission, recovery, and quality of life outcomes in people with first episode psychosis: a machine learning approach. The Lancet. Digital Health, 1(6), e261-e270. https://doi.org/10.1016/s2589-7500%2819%2930121-9

The Core Deficit of Classical Schizophrenia: Implications for Predicting the Functional Outcome of Psychotic Illness and Developing Effective Treatments (2019)
Journal Article
Liddle, P. F. (2019). The Core Deficit of Classical Schizophrenia: Implications for Predicting the Functional Outcome of Psychotic Illness and Developing Effective Treatments. Canadian Journal of Psychiatry / Revue Canadienene de Psychiatrie, 64(10), 680-685. https://doi.org/10.1177/0706743719870515

© The Author(s) 2019. Many people suffering from psychotic illnesses experience persisting impairment of occupational and social function. Evidence assembled since the classical description of schizophrenia over a century ago indicates that both diso... Read More about The Core Deficit of Classical Schizophrenia: Implications for Predicting the Functional Outcome of Psychotic Illness and Developing Effective Treatments.

Reduced Prefrontal Gyrification in Carriers of the Dopamine D4 Receptor 7-Repeat Allele With Attention Deficit/Hyperactivity Disorder: A Preliminary Report (2019)
Journal Article
Palaniyappan, L., Batty, M. J., Liddle, P. F., Liddle, E. B., Groom, M. J., Hollis, C., & Scerif, G. (2019). Reduced Prefrontal Gyrification in Carriers of the Dopamine D4 Receptor 7-Repeat Allele With Attention Deficit/Hyperactivity Disorder: A Preliminary Report. Frontiers in Psychiatry, 10, Article 235. https://doi.org/10.3389/fpsyt.2019.00235

Objective: Structural and functional abnormalities have been noted in the prefrontal cortex of individuals with neurodevelopmental disorders such as attention deficit/hyperactivity disorder (ADHD). Cortical thickness and gyrification, both of which h... Read More about Reduced Prefrontal Gyrification in Carriers of the Dopamine D4 Receptor 7-Repeat Allele With Attention Deficit/Hyperactivity Disorder: A Preliminary Report.

Glutathione and glutamate in schizophrenia: a 7T MRS study (2018)
Journal Article
Kumar, J., Liddle, E. B., Fernandes, C. C., Palaniyappan, L., Hall, E. L., Robson, S. E., …Liddle, P. F. (2018). Glutathione and glutamate in schizophrenia: a 7T MRS study. Molecular Psychiatry, 25(4), 873–882. https://doi.org/10.1038/s41380-018-0104-7

© 2018 The Author(s) In schizophrenia, abnormal neural metabolite concentrations may arise from cortical damage following neuroinflammatory processes implicated in acute episodes. Inflammation is associated with increased glutamate, whereas the antio... Read More about Glutathione and glutamate in schizophrenia: a 7T MRS study.

Monitoring oral health of people in Early Intervention for Psychosis (EIP) teams: the extended Three Shires randomised trial (2017)
Journal Article
Adams, C. E., Wells, N. C., Clifton, A., Jones, H., Simpson, J., Tosh, G., …Aggarwal, V. R. (2018). Monitoring oral health of people in Early Intervention for Psychosis (EIP) teams: the extended Three Shires randomised trial. International Journal of Nursing Studies, 77, https://doi.org/10.1016/j.ijnurstu.2017.10.005

Background: The British Society for Disability and Oral Health guidelines made recommendations for oral health care for people with mental health problems, including providing oral health advice, support, promotion and education. The effectiveness of... Read More about Monitoring oral health of people in Early Intervention for Psychosis (EIP) teams: the extended Three Shires randomised trial.

Abnormal salience signaling in schizophrenia: The role of integrative beta oscillations: Salience Signaling in Schizophrenia (2016)
Journal Article
Liddle, E. B., Price, D., Palaniyappan, L., Brookes, M. J., Robson, S. E., Hall, E. L., …Liddle, P. F. (2016). Abnormal salience signaling in schizophrenia: The role of integrative beta oscillations: Salience Signaling in Schizophrenia. Human Brain Mapping, 37(4), 1361-1374. https://doi.org/10.1002/hbm.23107

Aberrant salience attribution and cerebral dysconnectivity both have strong evidential support as core dysfunctions in schizophrenia. Aberrant salience arising from an excess of dopamine activity has been implicated in delusions and hallucinations, e... Read More about Abnormal salience signaling in schizophrenia: The role of integrative beta oscillations: Salience Signaling in Schizophrenia.

Abnormal visuomotor processing in schizophrenia (2015)
Journal Article
Robson, S. E., Brookes, M. J., Hall, E. L., Palaniyappan, L., Kumar, J., Skelton, M., …Morris, P. G. (2016). Abnormal visuomotor processing in schizophrenia. NeuroImage: Clinical, 12, 869-878. https://doi.org/10.1016/j.nicl.2015.08.005

Subtle disturbances of visual and motor function are known features of schizophrenia and can greatly impact quality of life; however, few studies investigate these abnormalities using simple visuomotor stimuli. In healthy people, electrophysiological... Read More about Abnormal visuomotor processing in schizophrenia.

Voxel-based, brain-wide association study of aberrant functional connectivity in schizophrenia implicates thalamocortical circuitry (2015)
Journal Article
Cheng, W., Palaniyappan, L., Li, M., Kendrick, K. M., Zhang, J., Luo, Q., …Feng, J. (2015). Voxel-based, brain-wide association study of aberrant functional connectivity in schizophrenia implicates thalamocortical circuitry. npj Schizophrenia, 1, Article 15016. https://doi.org/10.1038/npjschz.2015.16

BACKGROUND: Wernicke’s concept of ‘sejunction’ or aberrant associations among specialized brain regions is one of the earliest hypotheses attempting to explain the myriad of symptoms in psychotic disorders. Unbiased data mining of all possible brain-... Read More about Voxel-based, brain-wide association study of aberrant functional connectivity in schizophrenia implicates thalamocortical circuitry.

Alterations in effective connectivity anchored on the insula in major depressive disorder (2014)
Journal Article
Iwabuchi, S. J., Peng, D., Fang, Y., Jiang, K., Liddle, E. B., Liddle, P. F., & Palaniyappan, L. (2014). Alterations in effective connectivity anchored on the insula in major depressive disorder. European Neuropsychopharmacology, 24(11), 1784-1792. doi:10.1016/j.euroneuro.2014.08.005

Recent work has identified disruption of several brain networks involving limbic and cortical regions that contribute to the generation of diverse symptoms of major depressive disorder (MDD). Of particular interest are the networks anchored on the ri... Read More about Alterations in effective connectivity anchored on the insula in major depressive disorder.