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. 2025 Apr 11;22(4):341–356. doi: 10.30773/pi.2024.0152

Table 2.

A summary of neuroimaging/neurophysiology biomarkers in diagnosing major depressive disorder in adults

Study Category Comparison method Cohort (M/F), age (yr) Biomarkers Medicationnaive AUC Sensitivity/specificity (%)
Guo et al. [32] (2018) rs-fMRI DSM-IV, Hamilton Depression Rating Scale Discovery set: VMHC - Voxel Mirrored Homotopic Connectivity Y Discovery set: 88.1/92.7
 HC=31 (14/17), Age: 29.7  PCC=0.922
 MDD=59 (20/39), Age: 30.3 1. Posterior Cingulate Cortex  Cuneus=0.911
Validation set: 2. Cuneus Validation set:
 HC=24 (13/11), Age: 24.1  PCC=0.769
 MDD=29 (15/14), Age: 27.0  Cuneus=0.858
Zhong et al. [41] (2017) rs-fMRI DSM-IV, Centre for Epidemiological Studies Depression Scale Discovery set: Whole brain functional connectivity: Y - 92/93
HC=33 (16/17), Age: 20.8 1. Salience network
MDD=29 (11/18), Age: 21 2. Default mode network
Validation set: 3. Cerebellum
HC=57 (26/31), Age: 21.5 4. Visual cortical areas
MDD=46 (22/24), Age: 22.6 5. Affective network
Wei et al. [40] (2013). rs-fMRI Hamilton Depression Rating Scale HC=20 (14/6), Age: 30.8 Hurst exponent Y -
1. Salience network
MDD=20 (10/10), Age: 34.3 2. Ventromedial prefrontal network
3. Lateral prefrontal network
Liu et al. [34] (2013) rs-fMRI DMS-IV, Hamilton Depression Rating Scale HC=20 (10/10), Age: 24.3 Fractional ALFF Y Right cerebellum posterior lobe=0.823 -
1. Right cerebellum posterior lobe Right middle frontal gyrus=0.854
MDD=24 (12/12), Age: 28.1 2. Right middle frontal gyrus Left superior occipital gyrus/cuneus=0.792
3. Left superior occipital gyrus Left parahippocampal gyrus=0.930
4. Left parahippocampal gyrus
Oliveira et al. [37] (2013) fMRI DSM-IV, Hamilton Depression Rating Scale Discovery set: 5. Overall brain activation in response to emotional facial expression Y Sad v.s. Neutral: -
 HC=19 (8/11), Age: 42.8  HC=0.74, MDD=0.58
 MDD=19 (6/13), Age: 43.2 Happy v.s. Neutral:
Validation set:  HC=0.70, MDD=0.53
 HC=18 (3/15), Age: 29.8
 MDD=18 (1/17), Age: 31.9
Niida et al. [36] (2019) MRI DSM-IV, Hamilton Depression Rating Scale HC=43 (11/32), Age: 65.8 Gray Matter Volume N 0.911 95.7/96.0
MDD=92 (8/94), Age: 65.9 1. Subgenual Anterior Cingulate Cortex (SgACC)
BD=32 (9/23), Age: 64.3
Hellewell et al. [33] (2019) MRI Mini-International Neuropsychiatric Interview, Hamilton Depression Rating Scale Discovery set: Gray Matter Volume Y Discovery: 0.750 -
 MDD=98 (53/45), Age: 33.3 (12.6) 1. Midline/Cingulate region Validation: 0.840
Validation set: 2. Medial temporal lobe region
 MDD=131 (54/77), Age: 33.2 (11.0) 3. Prefrontal Cortex
Liu et al. [35] (2016) MRI DSM-IV, Major Depression Inventory HC=49 (25/24), Age: 39.0 Grey Matter Volume - Structural Asymmetry Index Y 0.635 61.0/59.0
MDD=39 (15/24), Age: 38.2 1. Dorsolateral Prefrontal Cortex
Ramasubbu et al. [38] (2019) ASL-MRI DSM-IV, Montgomery–Åsberg Depression Rating Scale Discovery set: Cerebral blood flow + Sex of participant Y - 80.0/75.0
 HC=19 (2/17), Age: 42.4
 MDD=20 (2/18), Age: 44.2
Validation set:
 HC=12 (3/9), Age: 44.3
 MDD=12 (3/9), Age: 45.5
Schnyer et al. [39] (2017) DTI-MRI DSM-IV, Beck Depression Index, Inventory of Depression and Anxiety Symptoms HC=25 (12/13), Age: 19–33 Fractional Anisotropy N - Whole: 60.0/80.0
MDD=25 (12/13), Age: 18–31 1. Right Corpus Callosum Right hemisphere only: 56.0/84.0
2. Right hemisphere only
Lubiński et al. [43] (2023) EEG Hamilton Depression Rating Scale HC=20, Age: 47.3 Pattern Visual Evoked Potentials (PVEP) Y 0.841 76.0/1.0
MDD=29, Age: 46.8 1. AP100 (Amplitude)
2. PTP 100 (Peak time)
Husain et al. [42] (2020) fNIRS DSM-V, Hamilton Depression Rating Scale HC=105 (40/65), Age: 36.4 Regional oxy-hemoglobin Y Frontal=0.760 -
MDD=105 (45/60), Age: 36.2 1. Frontal Temporal=0.820
2. Temporal
Pillai et al. [44] (2018) PET DSM-IV, Hamilton Depression Rating Scale, Beck Depression Index, Global Assessment Scale HC=25 (25/0), Age: 40.2 5-HT1A Autoreceptor binding Y 0.934 94.0/1.0
MDD=16 (16/0), Age: 40.1 1. Dorsal Raphe Nuclei
2. Median Raphe Nuclei

Value of age are presented as mean, mean (standard deviation), or range. M, male; F, female; AUC, area under the curve; HC, healthy control; MDD, major depressive disorder; N, no; Y, yes; fMRI, functional magnetic resonance imaging; rs-fMRI, resting state fMRI; MRI, magnetic resonance imaging; DSM, Diagnostic and Statistical Manual of Mental Disorders; PCC, posterior cerebral cortex; BD, bipolar disorder; ASL-MRI, arterial spin labelling-MRI; DTI-MRI, diffusion tensor imaging-MRI; EEG, electroencephalogram; PET, positron emission tomography