Results 81 to 90 of about 256,314 (295)

The role of optic flow on reactive brain processing in cognitive tasks during locomotion

open access: yesBrain Research Bulletin
Perception and action share neural resources that must be flexibly allocated across simultaneous tasks. In this context, the optic flow provides key visual input during locomotion and may interact with concurrent cognitive processing. This study aimed to:
BiancaMaria Di Bello   +5 more
doaj   +1 more source

Evaluating the Contributors of Dynamic Flow to Freezing Gait in Parkinson’s Disease [PDF]

open access: yes, 2010
Although visual cues can improve gait in Parkinson’s disease (PD), their underlying mechanism is poorly understood. Previous research suggests that cues contribute optical flow that is essential to elicit gait improvement.
Almeida, Quincy J., Lebold, Chad A.
core   +1 more source

Controlling docking, altitude and speed in a circular high-roofed tunnel thanks to the optic flow

open access: yes, 2012
International audienceThe new robot called BeeRotor we have developed is a tandem rotorcraft that mimicks optic flow-based behaviors previously observed in flies and bees.
Expert, Fabien, Ruffier, Franck
core   +2 more sources

AAA+ protein unfoldases—the Moirai of the proteome

open access: yesFEBS Letters, EarlyView.
AAA+ unfoldases are essential molecular motors that power protein degradation and disaggregation. This review integrates recent cryo‐electron microscopy (cryo‐EM) structures and single‐molecule biophysical data to reconcile competing models of substrate translocation.
Stavros Azinas, Marta Carroni
wiley   +1 more source

Vection in depth during treadmill walking [PDF]

open access: yes, 2015
Vection has typically been induced in stationary observers (ie conditions providing visual-only information about self-motion). Two recent studies have examined vection during active treadmill walking--one reported that treadmill walking in the same ...
Allison, Robert S   +3 more
core   +1 more source

Transcriptional network analysis of PTEN‐protein‐deficient prostate tumors reveals robust stromal reprogramming and signs of senescent paracrine communication

open access: yesMolecular Oncology, EarlyView.
Combining PTEN protein assessment and transcriptomic profiling of prostate tumors, we uncovered a network enriched in senescence and extracellular matrix (ECM) programs associated with PTEN loss and conserved in a mouse model. We show that PTEN‐deficient cells trigger paracrine remodeling of the surrounding stroma and this information could help ...
Ivana Rondon‐Lorefice   +16 more
wiley   +1 more source

The Shape of a Vehicle Windshield Affects Reaction Time and Brain Activity During a Target Detection Task

open access: yesFrontiers in Human Neuroscience, 2020
Background: Achieving clear visibility through a windshield is one of the crucial factors in manufacturing a safe and comfortable vehicle. The optic flow (OF) through the windshield has been reported to divert attention and could impair visibility ...
Takafumi Sasaoka   +10 more
doaj   +1 more source

An fMRI study of parietal cortex involvement in the visual guidance of locomotion [PDF]

open access: yes, 2010
Locomoting through the environment typically involves anticipating impending changes in heading trajectory in addition to maintaining the current direction of travel.
Billington, Jac   +3 more
core   +1 more source

Infrared laser sampling of low volumes combined with shotgun lipidomics reveals lipid markers in palatine tonsil carcinoma

open access: yesMolecular Oncology, EarlyView.
Nanosecond infrared laser (NIRL) low‐volume sampling combined with shotgun lipidomics uncovers distinct lipidome alterations in oropharyngeal squamous cell carcinoma (OPSCC) of the palatine tonsil. Several lipid species consistently differentiate tumor from healthy tissue, highlighting their potential as diagnostic markers.
Leonard Kerkhoff   +11 more
wiley   +1 more source

Interruption of visually perceived forward motion in depth evokes a cortical activation shift from spatial to intentional motor regions [PDF]

open access: yes, 2010
Forward locomotion generates a radially expanding flow of visual motion which supports goal-directed walking. In stationary mode, wide-field visual presentation of optic flow stimuli evokes the illusion of forward self-motion. These effects illustrate an
Beudel, M.   +2 more
core   +2 more sources

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