A 20-year-old woman infected with the 2009 H1N1 strain of influenza A developed bilateral visual loss. Brain MRI showed restricted diffusion of the parietal and occipital lobes, and her spinal fluid did not contain inflammatory cells. This report describes an unusual case of H1N1 influenza A virus infection primarily affecting the posterior visual pathways.
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http://dx.doi.org/10.1097/WNO.0b013e31823fd913 | DOI Listing |
Eur J Neurosci
January 2025
Institute of Cognitive Neuroscience, National Central University, Taiwan.
Previous research demonstrated that transcranial alternating current stimulation (tACS) can induce phosphene perception. However, tACS involves rhythmic changes in the electric field and alternating polarity (excitatory vs. inhibitory phases), leaving the precise mechanism behind phosphene perception unclear.
View Article and Find Full Text PDFAm J Speech Lang Pathol
January 2025
Department of Communication Sciences and Disorders, The Pennsylvania State University, University Park.
Purpose: The purpose of the current study was to investigate the impact of a teletraining to teach adult communication partners the "Communicating Choices-Cortical Visual Impairment (CVI)" strategy to support participation for students with multiple disabilities.
Method: A nonconcurrent, multiple-probe, across-participants design was implemented with four adult communication partner (i.e.
Vision Res
January 2025
Department of Psychology, University of Nevada, Reno, NV 89557, United States.
A neural theory of human lightness computation is described and computer-simulated. The theory proposes that lightness is derived from transient ON and OFF cell responses in the early visual pathways that have different characteristic neural gains and that are generated by fixational eye movements (FEMs) as the eyes transit luminance edges in the image. The ON and OFF responses are combined with corollary discharge signals that encode the eye movement direction to create directionally selective ON and OFF responses.
View Article and Find Full Text PDFLens tension is essential for accommodative vision but remains challenging to measure with precision. Here, we present an optical coherence elastography (OCE) technique that quantifies both the tension and elastic modulus of lens tissue and capsule. This method derives mechanical parameters from surface wave dispersion across a critical frequency range of 1-30 kHz.
View Article and Find Full Text PDFThe current state of mental health treatment for individuals diagnosed with major depressive disorder leaves billions of individuals with first-line therapies that are ineffective or burdened with undesirable side effects. One major obstacle is that distinct pathologies may currently be diagnosed as the same disease and prescribed the same treatments. The key to developing antidepressants with ubiquitous efficacy is to first identify a strategy to differentiate between heterogeneous conditions.
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