Posterior parietal cortex activity during visually cued gait: a preliminary study.

Paul McDonnell, Adam B Grimmitt, Jonaz Moreno Jaramillo, Wouter Hoogkamer, Douglas N Martini

Abstract read

In one paragraph

Article in Experimental brain research, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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0citing papers in PubMed

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1 · What the graph read from it

What it found

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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

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3 · Its place in the literature

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0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

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5 · Who and what money

Authors and funding

5 authors.

Paul McDonnellMovement Neuroscience Laboratory, Department of Kinesiology, University of Massachusetts Amherst, 30 Eastman Lane, Amherst, MA, 01003, USA.ORCID https://orcid.org/0009-0007-1662-7296

Adam B GrimmittIntegrative Locomotion Laboratory, Department of Kinesiology, University of Massachusetts Amherst, Amherst, MA, USA.ORCID https://orcid.org/0000-0003-1666-8972

Jonaz Moreno JaramilloIntegrative Locomotion Laboratory, Department of Kinesiology, University of Massachusetts Amherst, Amherst, MA, USA.ORCID https://orcid.org/0000-0003-4640-8573

Wouter HoogkamerIntegrative Locomotion Laboratory, Department of Kinesiology, University of Massachusetts Amherst, Amherst, MA, USA.ORCID https://orcid.org/0000-0003-0524-0196

Douglas N MartiniMovement Neuroscience Laboratory, Department of Kinesiology, University of Massachusetts Amherst, 30 Eastman Lane, Amherst, MA, 01003, USA. dmartini@umass.edu.ORCID https://orcid.org/0000-0002-5131-497X

Funding

Identifying potential cortical mechanisms responsible for gait impairment in older adult fallersR21AG075489 · NIA · UNIVERSITY OF MASSACHUSETTS AMHERST · PI HOOGKAMER, WOUTER, MARTINI, DOUGLAS NATHANIEL · 2022 to 2023

$420k

NIA NIH HHS R21AG075489

6 · The paper itself

Abstract

Safe gait requires visually cued (VC) step adjustments for negotiating targets and obstacles. Effective step adjustments rely on good visuospatial processing. The posterior parietal cortex (PPC) is implicated in visuospatial processing, yet empirical evidence is limited for the PPC's role during gait in humans. Increased cortical control of gait is associated with higher gait variability, a marker of gait performance and fall risk among older adults. However, the cortical underpinnings of gait variability in visually complex environments are not well established. The primary aim of this preliminary study was to assess PPC activity during VC gait and VC gait with perturbations (VCP). A secondary aim was to determine how PPC activity relates to gait variability during VC and VCP gait. Twenty-one healthy young adults completed three treadmill gait conditions at preferred speed: non-cued (NC) gait, VC gait, where stepping targets were presented in a regular pattern, and VCP gait, where stepping target positions were pseudorandomly shifted. Functional near-infrared spectroscopy quantified relative changes in deoxygenated and oxygenated hemoglobin (ΔHbO

Indexed as

CuesGaitParietal LobePsychomotor PerformanceVisual PerceptionAdultFemaleHumansMalePhotic StimulationSpectroscopy, Near-InfraredYoung AdultfNIRSGait variabilityInertial measurement unitMobile neuroimagingPrecision steppingWalking

Identifiers

PMID40853390

DOI10.1007/s00221-025-07146-0

What OpenQuestion holds

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.