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PLoS One
January 2025
Division of Kinesiology and Health, University of Wyoming, Laramie, WY, United States of America.
The inversion effect in biological motion suggests that presenting a point-light display (PLD) in an inverted orientation impairs the observer's ability to perceive the movement, likely due to the observer's unfamiliarity with the dynamic characteristics of inverted motion. Vertical dancers (VDs), accustomed to performing and perceiving others to perform dance movements in an inverted orientation while being suspended in the air, offer a unique perspective on this phenomenon. A previous study showed that VDs were more sensitive to the artificial inversion of PLDs depicting dance movements when compared to typical and non-dancers if given sufficient dynamic information.
View Article and Find Full Text PDFRadiology
January 2025
From the Departments of Radiology (V.K., A.R., P.D.) and Pathology (J.N.), University of Arkansas for Medical Sciences, 4301 W Markham St, Little Rock, AR 72205.
A 61-year-old male patient without prior history of ophthalmologic problems presented with pain and redness in the left eye associated with slowly progressive proptosis over the previous 6 months. The patient also had diplopia in rightward and downward gaze. There was no vision loss.
View Article and Find Full Text PDFBMJ Case Rep
January 2025
Department of Ophthalmology and Visual Sciences, University of Kentucky College of Medicine, Lexington, Kentucky, USA.
A paediatric patient presented with periorbital oedema and fever. Initially, there was low suspicion for cavernous sinus thrombosis and orbital cellulitis due to the presence of full extraocular movements. However, given worsening bilateral periorbital oedema, lethargy and sepsis, neuroimaging was performed demonstrating inflammation and enhancement of the leptomeninges and left cavernous sinus, and raising concern for cavernous sinus thrombosis in the setting of orbital cellulitis.
View Article and Find Full Text PDFInvest Ophthalmol Vis Sci
January 2025
Department of Ophthalmology, Saitama Medical University, Saitama, Japan.
Purpose: This study evaluates the effect of 6° horizontal gaze tolerance on visual field mean sensitivity (MS) in patients with glaucoma using a binocular head-mounted automated perimeter, following findings of structural changes in the posterior globe from magnetic resonance imaging and optical coherence tomography.
Methods: In this cross-sectional study, a total of 161 eyes (85 primary open-angle glaucoma [POAG] and 76 healthy) from 117 participants were included. Logistic regression and 1:1 matched analysis assessed the propensity score for glaucoma and healthy eyes, considering age, sex, and axial length as confounders.
Response preparation is accomplished by gradual accumulation in neural activity until a threshold is reached. In humans, such a preparatory signal, referred to as the lateralized readiness potential, can be observed in the EEG over sensorimotor cortical areas before execution of a voluntary movement. Although well-described for manual movements, less is known about preparatory EEG potentials for saccadic eye movements in humans and nonhuman primates.
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