PIPages
Labs

Heather Shappell

Wake Forest University, NC·Mathematics & Statistics·Early-career

The brain works as a network: regions coordinate their activity, and the pattern of who talks to whom can change over seconds to minutes. Most studies of brain connectivity average these patterns across an entire scan, which can hide meaningful moment-to-moment changes.

Fields

Mathematics & Statistics

Neuroscience

Biomedical Engineering

Topics

biostatistics

neuroimaging statistics

dynamic functional connectivity

Grants
1 known grant, through Feb 2027

What they work on

  1. Develop a unified statistical framework that estimates whole-brain functional networks from fMRI and how those networks change over seconds to minutes during a scan.
  2. Build methods that account for variables of interest and head-motion artifacts while estimating dynamic brain connectivity.
  3. Allow individual-level estimates of brain network dynamics so that differences between people, such as those relevant to Alzheimer's disease, can be studied.

More about the research

Tracking these changes accurately matters for understanding normal brain function and disorders such as Alzheimer's disease, and could help find early warning signs.

Why it matters

Better tools for tracking how brain networks change over time could help researchers identify biomarkers for brain disorders such as Alzheimer's disease. Such biomarkers could, in turn, inform earlier prevention and treatment. Neuroscientists and clinicians studying fMRI data would gain methods that handle head motion and differences between individuals.

Known grants

From NIH and NSF research grants. Labs often have other funding we can't see.

Statistical Methods for Whole-Brain Dynamic Connectivity Analysis

NIH · Mar 2023 – Feb 2027

Closest labs

Stephen Wilson

Pennsylvania State University, PA·Psychology

Examine whether moment-to-moment changes in how separated the default mode and executive control networks are predict the risk of a smoking lapse, using an fMRI lapse task in adults after 12 hours without nicotine.

Itamar Kahn

Columbia University, NY·Neuroscience

Chart how brain network organization, especially system segregation, changes across the mouse lifespan by repeatedly scanning the same awake mice with resting-state fMRI from 3 to 21 months of age.

Muriah D Wheelock

Washington University in St Louis, MO·Neuroscience

Compare the spatial and temporal patterns of brain development from birth to age three with patterns of aging and Alzheimer degeneration, using harmonized MRI datasets (eLABE, Baby Connectome Project, ADNI, SORTOUT-AB, HABS-HD) to test the 'first in last out' hypothesis.

The school

Wake Forest University: 27 labs on PI Pages, $345M a year on research, 54 research doctorates a year.

More about Wake Forest University

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