Results 41 to 50 of about 2,551 (127)

Bio‐inspired vision: From principle, material architectures to system‐level integration

FlexMat, EarlyView.
This review introduces the development and mechanism of electronic and ionic bio‐inspired vision devices respectively. Then, it explores the impact of structure on bio‐inspired visual performance from the scale of intrinsic materials and device. Finally, it concludes that only by combining advanced software and technology can more complex vision ...
Zewan Lin, Miaoyi Xu, Xianda Ma, Weifeng Yang, Yuanlong Shao   +4 more
wiley   +1 more source

The Roles of Rods, Cones, and Melanopsin in Photoresponses of M4 Intrinsically Photosensitive Retinal Ganglion Cells (ipRGCs) and Optokinetic Visual Behavior

Frontiers in Cellular Neuroscience, 2018
Intrinsically photosensitive retinal ganglion cells (ipRGCs) mediate not only image-forming vision like other ganglion cells, but also non-image-forming physiological responses to light such as pupil constriction and circadian photoentrainment.
Melanie M. Schroeder, Krystal R. Harrison, Krystal R. Harrison, Elizabeth R. Jaeckel, Hunter N. Berger, Xiwu Zhao, Michael P. Flannery, Emma C. St. Pierre, Nancy Pateqi, Agnieszka Jachimska, Andrew P. Chervenak, Kwoon Y. Wong, Kwoon Y. Wong   +12 more
doaj   +1 more source

Colour and melanopsin mediated responses in the murine retina

Frontiers in Cellular Neuroscience, 2023
Introduction: Intrinsically photosensitive retinal ganglion cells (ipRGCs) integrate melanopsin and rod/cone-mediated inputs to signal to the brain. Whilst originally identified as a cell type specialised for encoding ambient illumination, several lines ...
Joshua W. Mouland, Joshua W. Mouland, Alex J. Watson, Alex J. Watson, Franck P. Martial, Franck P. Martial, Robert J. Lucas, Robert J. Lucas, Timothy M. Brown, Timothy M. Brown   +9 more
doaj   +1 more source

Recent advances in flexible optoelectronic synapses: Mechanisms, materials, and neuromorphic applications

FlexMat, EarlyView.
Flexible optoelectronic synapses integrate sensing, memory, and computation within mechanically compliant devices. This review summarizes their neuromorphic mechanisms and recent advances in diverse material platforms, emphasizing stability challenges under coupled optical, electrical, mechanical, and environmental stresses.
Yingjie Li, Yuyi Feng, Daquan Yang, Wenqiang Yang, Rui Su, Meicheng Li, Caofeng Pan   +6 more
wiley   +1 more source

Synaptic inputs to displaced intrinsically-photosensitive ganglion cells in macaque retina

Scientific Reports, 2022
Ganglion cells are the projection neurons of the retina. Intrinsically photosensitive retinal ganglion cells (ipRGCs) express the photopigment melanopsin and also receive input from rods and cones via bipolar cells and amacrine cells.
Andrea S. Bordt, Sara S. Patterson, James A. Kuchenbecker, Marcus A. Mazzaferri, Joel N. Yearick, Emma R. Yang, Judith Mosinger Ogilvie, Jay Neitz, David W. Marshak   +8 more
doaj   +1 more source

Bidirectional Pathological Axis Between Alzheimer's Disease and Circadian Rhythm Disturbance: Mechanisms and Therapeutic Strategies

iNew Medicine, EarlyView.
This graphical abstract illustrates a bidirectional vicious cycle between Alzheimer’s disease (AD) and circadian rhythm disturbance (CRD). On the one hand, AD pathology, including amyloid‐β (Aβ) plaque deposition and tau hyperphosphorylation, may damage the suprachiasmatic nucleus (SCN) and disrupt melatonin signaling, leading to sleep fragmentation ...
Jiajia Qin, Xianfeng Yu, Yayu Wang, Xiaohan Song, Yuehua Wang, Zhixin Wang, Wei Miao, Xudong Yang, Jiajia Zhu, Xiaoqun Zhu, Maria‐Trinidad Herrero   +10 more
wiley   +1 more source

Adult Expression of Tbr2 Is Required for the Maintenance but Not Survival of Intrinsically Photosensitive Retinal Ganglion Cells

Frontiers in Cellular Neuroscience, 2022
Retinal ganglion cells expressing the photopigment melanopsin are intrinsically photosensitive (ipRGCs). ipRGCs regulate subconscious non-image-forming behaviors such as circadian rhythms, pupil dilation, and light-mediated mood.
Sadaf Abed, Andreea Reilly, Sebastian J. Arnold, David A. Feldheim   +3 more
doaj   +1 more source

The Ecology of Human Sleep (EcoSleep) Cohort Study: Protocol for a longitudinal repeated measurement burst design study to assess the relationship between sleep determinants and outcomes under real‐world conditions across time of year

Journal of Sleep Research, Volume 34, Issue 2, April 2025.
Summary The interplay of daily life factors, including mood, physical activity, or light exposure, influences sleep architecture and quality. Laboratory‐based studies often isolate these determinants to establish causality, thereby sacrificing ecological validity.
Anna M. Biller, Nayab Fatima, Chrysanth Hamberger, Laura Hainke, Verena Plankl, Amna Nadeem, Achim Kramer, Martin Hecht, Manuel Spitschan   +8 more
wiley   +1 more source

A train of blue light pulses delivered through closed eyelids suppresses melatonin and phase shifts the human circadian system

Nature and Science of Sleep, 2013
Mariana G Figueiro, Andrew Bierman, Mark S ReaLighting Research Center, Rensselaer Polytechnic Institute, Troy, NY, USAAbstract: A model of circadian phototransduction was published in 2005 to predict the spectral sensitivity of the human circadian ...
Figueiro MG, Bierman A, Rea MS
doaj  

Intercellular communication atlas reveals Oprm1 as a neuroprotective factor for retinal ganglion cells

Nature Communications
Previous studies of neuronal survival have primarily focused on identifying intrinsic mechanisms controlling the process. This study explored how intercellular communication contributes to retinal ganglion cell (RGC) survival following optic nerve crush ...
Cheng Qian, Ying Xin, Cheng Qi, Hui Wang, Bryan C. Dong, Donald J. Zack, Seth Blackshaw, Samer Hattar, Feng-Quan Zhou, Jiang Qian   +9 more
doaj   +1 more source