Publications

Multiarea processing in body patches of the primate inferotemporal cortex implements inverse graphics

Yilmaz H, Shah AD, Letrou A, Kumar S, Vogels R, Yildirim I

Shows how body-selective patches encode 3D structure using inverse-graphics style computation across inferotemporal areas.

A case series analysis of pediatric LGI1 encephalitis: clinical course, challenges, and implications

Verma K, Hardy D

Lifespan cognitive clinic insights from a pediatric LGI1 encephalitis series, informing adult dementia care pathways.

Automatic Segmentation and Quantitative Assessment of Stroke Lesions on MR Images

Verma K, Kumar S, Paydarfar D

Deep-learning lesion segmentation and quantification that underpins our voxel-based lesion–symptom mapping efforts with Dell Medical School.

How Do We Connect Brain Areas with Cognitive Functions? The Past, the Present and the Future

Verma K, Kumar S

Invited review articulating the clinic-to-cortex framework we use to interpret OASIS-3 psychometrics and neuroimaging data.

It is not just the category: behavioral effects of fMRI-guided electrical microstimulation result from a complex interplay of factors

Kumar S, Mergen E, Vogels R

fMRI-guided microstimulation work clarifying how causal perturbations of body patches influence categorization behavior.

Similar neural and perceptual masking effects of low-power optogenetic stimulation in primate V1

Chen CY, Chen YY, Benvenuti G, Kumar S, Ramakrishnan C, Deisseroth K, Geisler WS, Seidemann E

Demonstrates matched neural and perceptual masking from low-power optogenetic stimulation in behaving primates.

Body patches in inferior temporal cortex encode categories with different temporal dynamics

Kumar S, Vogels R

Single-unit recordings reveal distinct temporal dynamics across body patches that inform our phenotyping work.

Transformation of visual representations across ventral stream body-selective patches

Kumar S, Popivanov ID, Vogels R

Quantifies how visual representations evolve from mid-STS to anterior body patches, motivating current clustering efforts.

Shape selectivity of middle Superior Temporal Sulcus body patch neurons

Kalfas I, Kumar S, Vogels R

Co-first author work detailing single-neuron selectivity in the mid-STS body patch.

Characterization of host response to C. neoformans through quantitative proteomic analysis of cryptococcal meningitis co-infected with HIV

Selvan LDN, Sreenivasamurthy SK, Kumar S, Prasad TSK, et al.

Comparative analysis of anthropometric parameters and lipid profile of type 2 diabetic patients in southwest Punjab

Maria AK, Verma K, Kumar S, Gupta VK, Kumar M

Assesses cardiometabolic risk markers that now inform dementia risk profiling.

Effect of preeclampsia on insulin sensitivity

Sinha S, Dhaliwal GS, Gupta K, Kumar S, Gupta A

Host response profile of human brain proteome in toxoplasma encephalitis

Sahu A, Kumar S, Shankar SK, et al.

Plasma Proteome Database as a resource for proteomics research: 2014 update

Nanjappa V, Kumar S, Prasad TSK, et al.

PrediQt-Cx: Post treatment health related quality of life prediction model for cervical cancer patients

Kumar S, Rana ML, Verma K, Singh N, Sharma AK, Maria AK, Dhaliwal GS, Khaira HK, Saini S

Stress leading to overweight/obesity in first MBBS hosteller girls

Verma K, Goyal S

Design-Induced Circularity in Alzheimer Biomarker Trials and Trial-Ready Cohorts: Enrichment, Data-Driven Selection, and Estimand Mismatch

Kumar S, Verma K

Methods-focused preprint auditing 72 Alzheimer biomarker trials/cohorts and mechanistically simulating enrichment and selection–inference reuse (“double dipping”). Proposes practical safeguards (explicit target population/estimand, discovery–confirmation separation, and leakage-prevention reporting).

Fig. 1 — AUC and null p-values

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Fig. 2 — Double dipping vs split-sample

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Fig. S1 — Simulation grid (A)

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Fig. S2 — Sensitivity analysis (E)

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Primary Care Diagnoses as a Reliable Predictor for Orthopedic Surgical Interventions

Verma K, Michels A, Gumusaneli E, Chitnis S, Kumar S, Thompson C, Esmail L, et al.

Validates BooksMed-derived predictors that generalize beyond neurology.

Emulating Human Cognitive Processes for Expert-Level Medical Question-Answering with Large Language Models

Verma K, Kumar S, Wottrich S, López KR, Aggarwal N, Bhatt Z, Singh A, et al.

Introduces ExpertMedQA/BooksMed, demonstrating higher accuracy than Med-PaLM 2, Almanac, and GPT-4 on physician-scored neurology benchmarks.

A fast and robust retinotopic-scale representation of occluding edges in macaque V1

Kumar S, Chen YC, Seidemann E

Extends our SFN 2021 findings on V1 segmentation mechanisms.

Dementia modulates the distributed representations of cognitive functions

Verma K, Kumar S

Full manuscript expanding on the AAN/Neurology 2023 abstract using OASIS-3 data.

Disease modifying therapies in Alzheimer's: Are we there yet?

Verma K, Kumar S

Perspective on anti-amyloid rollout challenges drawn from Express Dementia Care work.

Ear-Specific Word Recognition and MRI Laterality in Dementia: An Exploratory Clinic-Based Pilot

Kumar S, Gohmert A, Burnett E, Verma K

Express Dementia Care in East Texas (EDCC): An Integrated, Closed-loop Model to Shorten Time-To-Diagnosis and Improve Caregiver Outcomes

Verma K, Voyles H, Burnett E, Kumar S, Gohmert A, Schmitt A

Health Disparities and Diagnostic Challenges in Anti-Amyloid Therapy Implementation: A Rural Texas Experience

Burnett E, Voyles H, Kumar S, Verma K

Psychometrics and Aβ-PET Jointly Stratify Clinical Dementia Severity

Verma K, Kumar S

Unsupervised Clustering Reveals a Reproducible Language-Dominant Phenotype Across FTD Stages

Kumar S, Verma K

An Expert-Level Artificial Intelligence Model in Neurology Simulating Human Cognitive Processes

Verma K, Abdurashidova M, Motina M, Wottrich S, López K, Moodley M, Kumar S, et al.

Dementia Modulates the Distributed Representations of Cognitive Functions

Verma K, Kumar S

Dementia Modulates the Distributed Representations of Cognitive Functions (P4-12.011)

Verma K, Kumar S

Imaging and psychometric evidence to support clinical dementia grading

Verma K, Kumar S

Model development for automatic segmentation of chronic stroke lesions

Verma K, Kumar S

A fast and robust retinotopic-scale representation of occluding edges in macaque V1 suggests an active role for V1 in scene segmentation

Kumar S, Chen YC, Seidemann E

Automatic segmentation of stroke lesions on MR images for voxel-based lesion-symptom mapping

Verma K, Kumar S

How do we connect brain areas to cognitive functions?

Verma K, Kumar S

Inverse graphics explains population responses in body-selective regions of the primate inferotemporal cortex

Yilmaz H, Shah AD, Kumar S, Vogels R, Tenenbaum JB, Yildirim I

Addressing subjectivity in clinical practice: A conceptual framework for quantifying patient-reported outcomes

Verma K, Kumar S

Epilepsy before and after surgical intervention

Verma K, Clarke D

Inverse graphics explains population responses in body-selective regions of the primate inferotemporal cortex

Yilmaz H, Shah AD, Kumar S, Vogels R, Tenenbaum JB, Yildirim I

Neural and perceptual correlates of nonlinear interactions between visual and optogenetic stimulation in behaving macaque V1

Kumar S, Chen CY, Chen YY, Benvenuti G, Whitmire MP, Geisler WS, Seidemann E

Effect of electrical microstimulation of the anterior Superior Temporal Sulcus body patch on visual categorization tasks

Mergan E, Kumar S, Vogels R

The effect of electrical microstimulation of a body patch on visual categorization tasks

Kumar S, Mergen E, Vogels R

Modeling the shape selectivity of single neurons of a macaque body patch

Kalfas I, Kumar S, Vogels R

Monkey brain fMRI responses to custom-designed animations of monkey hand- and tail-grasping actions

Vissers MM, Sharma S, Fiave PA, Kumar S, Nelissen K

Stimulus selectivity of macaque middle and anterior superior temporal sulcus body patches

Kumar S, Popivanov ID, Vogels R

Coding of viewpoint, posture and identity of bodies in the macaque midSTS body patch

Kumar S, Vogels R

Increased viewpoint-tolerant coding of body posture and identity in the anterior compared to the midSTS body patch

Vogels R, Kumar S

Neural encoding of shapes in the middle superior temporal sulcus (mid-STS) body patch neurons

Kumar S, Vogels R

Single unit feature selectivity of the midSTS body patch: adaptive stimulus sampling and modeling

Kumar S, Vogels R

Results of the project Malnutrition and Developmental Milestones (MDM)

Verma K, Kumar S