PIPages
Labs

Matthew D Grilli

University of Arizona, AZ·Neuroscience

The earliest stage of Alzheimer's disease is usually called "clinically silent" because standard tests in a clinic find nothing wrong. Yet the brain changes of early Alzheimer's strike regions that support the way people remember their own past and imagine their own future.

Fields

Neuroscience

Psychology

Medicine & Clinical Research

Topics

Alzheimer's disease

autobiographical memory

autobiographical thought

Grants
1 known grant, through Apr 2028

What they work on

  1. Test whether smartphone-tracked autobiographical thoughts in clinically normal older adults relate to plasma Alzheimer's biomarkers and to resting-state connectivity of the default network, brain regions targeted early in the disease.
  2. Determine whether these smartphone measures predict future accumulation of plasma amyloid and tau biomarkers, future default network connectivity and decline in daily psychosocial and instrumental functioning over longitudinal follow-up.
  3. Deploy a smartphone app to a large remote, genotyped cohort to assess how age and genetic risk for Alzheimer's disease shape the content and structure of autobiographical thought at scale.
  4. Compare smartphone measures of autobiographical thought against standard in-lab cognitive tests to determine whether naturalistic assessment improves sensitivity to aging and Alzheimer's risk.

More about the research

That raises a question with practical consequences: could subtle changes in everyday personal thinking reveal the disease before any clinical sign appears? Detecting it earlier matters because treatment works best before damage accumulates.

Why it matters

Alzheimer's disease is the fifth leading cause of death among older Americans, and catching its earliest cognitive warning signs is key to treating it proactively. Smartphone-based measures of everyday personal thinking could become accessible, low-cost tests of preclinical Alzheimer's, provide new cognitive endpoints for drug trials, and reduce barriers to cognitive assessment for people who cannot easily reach a research clinic or memory center.

Known grants

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

Tracking autobiographical thoughts: a smartphone-based approach to identifying cognitive correlates of Alzheimer's disease biomarkers and risk factors in clinically normal older adults

NIH · Aug 2022 – Apr 2028

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Susan Whitfield-Gabrieli

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Test whether mindfulness-based real-time fMRI neurofeedback engages its intended brain target by reducing hyperconnectivity within the default mode network, the circuit active during inward self-focused thought, in adolescents aged 13 to 18 with major depressive disorder.

Lauren Rutter

Indiana University, IN·Psychology·Early-career

Examine how cognitive performance, perceived stress and psychiatric symptoms relate across individuals and over time, in an existing sample from the Indiana Alzheimer's Disease Research Center.

The school

University of Arizona: 36 labs on PI Pages, $1.0B a year on research, 487 research doctorates a year.

More about University of Arizona

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