Results 61 to 70 of about 6,807 (176)

Signal Amplification in the HPT Axis—Evidence for Its Existence, Location, Significance, and Molecular Mechanisms

Acta Physiologica, Volume 242, Issue 4, April 2026.
ABSTRACT Thyroid hormones (THs) are under negative feedback regulation via the hypothalamic–pituitary‐thyroid (HPT) axis. How this axis operates to keep the circulating THs within a narrow physiological range is not well understood quantitatively. Led by the design principle of robust homeostatic feedback control, here we review and synthesize the ...
Li Jing, Sarahna A. Moyd, Qiang Zhang
wiley   +1 more source

Trans‐Synaptic Retrograde Retinal Degeneration After Post‐Chiasmatic Stroke: A Systematic Review of Empirical Evidence

European Journal of Neurology, Volume 33, Issue 4, April 2026.
ABSTRACT Background Retrograde trans‐synaptic degeneration (RTSD) refers to the progressive loss of retinal cells following damage to the post‐geniculate visual pathway. The advent of optical coherence tomography (OCT) has allowed the measurement and quantification of retinal layers, in turn providing compelling evidence of RTSD in stroke patients and ...
Francesca Crespi, Giacomo Guidali, Lisa Melzi, Stefania Bianchi Marzoli, Nadia Bolognini   +4 more
wiley   +1 more source

Retinal ganglion cell degeneration in glaucoma disrupts HPA axis temporal organization and dampens corticosterone production

Journal of Neuroendocrinology, Volume 38, Issue 4, April 2026.
Abstract Glaucoma is a chronic optic neuropathy characterized by progressive vision loss. A previous study from our group showed that glaucoma‐induced retinal degeneration disrupts photic signaling to the suprachiasmatic nucleus (SCN), altering the molecular components of the central circadian clock.
Pietra Souza Barsanele, Juliano Jefferson da Silva, Bryan Fellipe da Silva Cortes, Eliz Maria de Oliveira Furtado, José Cipolla‐Neto, Leonardo Vinícius Monteiro de Assis, Maristela Oliveira Poletini, Maria Nathália Moraes   +7 more
wiley   +1 more source

Spatial Summation Properties for Magnocellular and Parvocellular Pathways in Glaucoma

Investigative Opthalmology & Visual Science, 2009
To examine the spatial summation properties for the magnocellular (M) and parvocellular (P) visual pathways in participants with glaucoma and approximately age-matched controls in central and midperipheral retinal eccentricities.Contrast discrimination thresholds were measured for six different stimulus array sizes, using steady- and pulsed-pedestal ...
Josephine, Battista, David R, Badcock, Allison M, McKendrick   +2 more
openaire   +2 more sources

Schizophrenia spectrum participants have reduced visual contrast sensitivity to chromatic (red/green) and luminance (light/dark) stimuli: new insights into information processing, visual channel function and antipsychotic effects

Frontiers in Psychology, 2013
Background: Individuals with schizophrenia spectrum diagnoses have deficient visual information processing as assessed by a variety of paradigms including visual backward masking, motion perception and visual contrast sensitivity (VCS).
Kristin Suzanne Cadenhead, Karen eDobkins, Jessica eMcGovern, Kathleen eShafer   +3 more
doaj   +1 more source

Implication of the thalamus in sleep alterations observed in Alzheimer's disease

Alzheimer's &Dementia, Volume 22, Issue 3, March 2026.
Abstract Alzheimer's disease (AD), the most common neurodegenerative disorder, is frequently accompanied by sleep disturbances. Alterations of sleep, in both quality and quantity, contribute to the progression of AD neuropathology. The thalamus, through its diverse nuclei, plays a central role in sleep regulation and sleep‐dependent memory ...
Carla Burnet‐Merlin, Y. Audrey Hay, Aurélie Brécier   +2 more
wiley   +1 more source

Visual crowding effect in the parvocellular and magnocellular visual pathways

Journal of Vision, 2020
The crowding effect, defined as the detrimental effects of nearby items on visual object recognition, has been extensively investigated. Previous studies have primarily focused on finding the stage(s) in the visual hierarchy where crowding starts to limit target processing, while little attention has been focused on potential differences between the ...
Atilgan, Nilsu, Yu, Seung Min, He, Sheng
openaire   +2 more sources

How Visual Illusions Illuminate Complementary Brain Processes:Illusory Depth from Brightness and Apparent Motion of Illusory Contours

Frontiers in Human Neuroscience, 2014
Neural models of perception clarify how visual illusions arise from adaptive neural processes. Illusions also provide important insights into how adaptive neural processes work. This article focuses on two illusions that illustrate a fundamental property
Stephen eGrossberg
doaj   +1 more source

Sex differences in neuromodulatory subcortical systems and their implications for Alzheimer's disease

Alzheimer's &Dementia, Volume 22, Issue 3, March 2026.
Abstract Neuromodulatory subcortical systems (NSSs) are uniquely susceptible to dementia‐related pathology, leading to frequent molecular and behavioral impairments associated with altered function of these nuclei. Some of these systems display clear sex‐specific cytoarchitecture and signaling leading to distinct physiology and behavioral outputs in ...
Rosaria J. Rae, Jessica Marie Hunter Alberhasky, Marion Baillet, Debra A. Bangasser, Michael E. Belloy, Anne S. Berry, Chiara Berteotti, Hannah Bow, Rachel Buckley, Jessica Z. K. Caldwell, Matteo Carpi, Benjamin J. Clark, Claire J. Ciampa, Alexander C. Conley, Martin J. Dahl, Zoe R. Donaldson, Alexander J. Ehrenberg, Gillian Einstein, Neus Falgàs, Haley A. Fenlon, Megan C. Fitzhugh, Robert C. Froemke, Clara Gallay, Lea Tenenholz Grinberg, Derek A. Hamilton, Zia Hasan, Oihane Uriarte Huarte, Shaista Jabeen, Heidi I. L. Jacobs, Louis John Kolling, Elouise A. Koops, Sabrina Lenzoni, Claudio Liguori, Riccardo Manca, Catherine A. Marcinkiewcz, Tamunotonye Omoluabi, Rademene Oria, Caitlin A. Orsini, Nancy Elizabeth Ortega, Judy Pa, Nathan S. Pentkowski, Joana B. Pereira, Rhudovic Ramos, Derya Sargin, Abhijit Satpati, Maria Clara Selles, Mabel Seto, Shabana M. Shaik, Shireen Sindi, Gowoon Son, Valentine Ucheagwu, Maxime Van Egroo, Qi Yuan, Michael A. Kelberman   +53 more
wiley   +1 more source

Nonuniform and pathway-specific laminar processing of spatial frequencies in the primary visual cortex of primates

Nature Communications
The neocortex comprises six cortical layers that play a crucial role in information processing; however, it remains unclear whether laminar processing is consistent across all regions within a single cortex.
Tian Wang, Weifeng Dai, Yujie Wu, Yang Li, Yi Yang, Yange Zhang, Tingting Zhou, Xiaowen Sun, Gang Wang, Liang Li, Fei Dou, Dajun Xing   +11 more
doaj   +1 more source