Cited by 45Optical Imaging and Spectroscopy TechniquesOptical Coherence Tomography ApplicationsMental Health and Psychiatry

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Optical Topography in Psychiatry: A Chip Off the Old Block or a New Look Beyond the Mind–Brain Frontiers?

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Ho, Cyrus S. H., Zhang, Melvyn W. B., Ho, Roger C. M.·2016·Frontiers in Psychiatry

Abstract

THE pSYCHiATRiC BOTTLEnECKPsychiatric conditions that include depression, schizophrenia, and dementia contribute most significantly to overall disability adjusted life years (DALYs), surpassing both cardiovascular disease and cancer (1, 2).Therefore, timely and accurate diagnosis and treatment are crucial in psychiatric disorders, for which the development of specific biomarkers would be of particular importance.Despite advances in the field of Psychiatry with more comprehensive classification and description of diagnostic criteria, a pathophysiologically oriented classification of psychiatric disorders based on neurobiological basis remains elusive.The human brain with its complex integrative functions of cognition, emotional regulation, and executive function is the most challenging object of study in human science.Mental illness occurs as a result of these brain dysfunctions, but they often do not lead to distinct pathologic lesions or tissue damage.Instead, they contribute to complications in synaptic relay, synaptic plasticity, and neural circuit function, in addition to influence by external psychosocial factors.Thus, standard imaging methodologies, such as computed tomography (CT) and magnetic resonance imaging (MRI), would not be adequate to delineate the underlying abnormality contributing to the dysfunction.Our inherent lack of understanding of the mind-brain interface and the difficulty in characterizing mental illness further makes the practice of Psychiatry all the more daunting.Being the only medical specialty without any objective diagnostic tool or marker, the current diagnostic process in Psychiatry is regretfully based on patients' reports of symptoms, observed behavior, and disease progression, which can introduce subjectivity and bias.Many clinical symptoms are also common to various psychiatric disorders, such as depressive symptoms in unipolar depression, bipolar disorder, schizoaffective disorder, etc., thus making it challenging to diagnose complex cases accurately within a limited time frame.This is illustrated by studies in the United States that revealed approximately 70% of bipolar patients were initially misdiagnosed due to polymorphic clinical symptoms (3, 4).It is also not uncommon to find different psychiatrists having deferring opinions about a case due to their unique experiences and training.Therefore, there is an urgent need for specific, objective biomarker-based assessments to guide diagnosis and treatment.The use of such biomarkers could assist clinicians in establishing differential diagnosis, which may improve specific individualized treatment.

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  • The MBI remains the most established way to measure burnout when this meta-analysis was conducted.

    “Unless burnout can be measured by neuroimaging or other biological methods as in some psychiatric symptoms [98,99], the MBI remains the most established way to measure burnout when this meta-analysis was conducted.”

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Metadata

Authors
Ho, C. S. H., Zhang, M. W. B., & Ho, R. C. M.
Affiliations
  • National University of Singapore (SG)
  • Institute of Mental Health (SG)
Corresponding author
Ho, Cyrus S. H.
Venue
Frontiers in Psychiatry
Published
2016-04-26
Volume
7
Pages
74-74
ISSN
1664-0640 (ISSN-L)
OpenAlex
W2342608217
Cited by
45
References
22
Citations by year
2026: 2 · 2025: 4 · 2024: 3 · 2023: 2 · 2022: 3 · 2021: 6 · 2020: 8 · 2019: 9 · 2018: 7 · 2017: 1
FWCI
4.92
Type
journal article
Language
en
Open access
Licence
cc-by
Locations
  • Frontiers in Psychiatry (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • Rare & Special e-Zone (The Hong Kong University of Science and Technology) (submittedVersion)
  • National University of Singapore (submittedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Topics
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Optical Imaging and Spectroscopy Techniques
  • Physical Sciences › Engineering › Biomedical Engineering › Optical Coherence Tomography Applications
  • Social Sciences › Arts and Humanities › Philosophy › Mental Health and Psychiatry
Keywords
optical topography, functional near-infrared spectroscopy, psychiatric biomarkers, psychiatric diagnosis, differential diagnosis, depression, schizophrenia, dementia, brain dysfunction

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