Results 101 to 110 of about 10,590,753 (306)

Optical Detection of Cellular Signals at Material Interfaces

open access: yesAdvanced Healthcare Materials, EarlyView.
Emerging functional materials are transforming optical detection of cellular signals. This review highlights optical techniques that exploit the unique optical properties of diverse materials to detect and quantify cellular electrical, chemical, and mechanical signals, and discusses key opportunities and challenges.
Xuchen Ren   +5 more
wiley   +1 more source

Association between Visual Evoked Potential and Disease Severity, Disease Duration and Visual Hallucination in Patients with Idiopathic Parkinsonism

open access: yesNovelty in Biomedicine, 2014
Background: Parkinson's disease (PD) is a neurodegenerative disorder impairing motor, verbal and other abilities. Visual evoked potential (VEP) assessment is a useful method for analysis of visual system and its function.
Mahnaz Talebi   +2 more
doaj  

Contrast sensitivity study in patients with Anisometropia Amblyopia

open access: yesJournal of the Egyptian Ophthalmological Society
Background Contrast sensitivity is the ability of the eye to detect small changes in illumination at targets that do not have clearly defined limits. Amblyopia is a disorder of sight in which the brain fails to process inputs from one eye and over time ...
Dina A. El Salmawy   +4 more
doaj   +1 more source

Cross-Modal Functional Reorganization of Visual and Auditory Cortex in Adult Cochlear Implant Users Identified with fNIRS

open access: yesNeural Plasticity, 2016
Cochlear implant (CI) users show higher auditory-evoked activations in visual cortex and higher visual-evoked activation in auditory cortex compared to normal hearing (NH) controls, reflecting functional reorganization of both visual and auditory ...
Ling-Chia Chen   +4 more
doaj   +1 more source

Bioinspired Adaptive Sensors: A Review on Current Developments in Theory and Application

open access: yesAdvanced Materials, EarlyView.
This review comprehensively summarizes the recent progress in the design and fabrication of sensory‐adaptation‐inspired devices and highlights their valuable applications in electronic skin, wearable electronics, and machine vision. The existing challenges and future directions are addressed in aspects such as device performance optimization ...
Guodong Gong   +12 more
wiley   +1 more source

Spontaneous EEG theta activity controls frontal visual evoked potential amplitudes

open access: yes, 1998
Frontal visual evoked potentials (VEPs) were studied in order to extend the application of a recently introduced algorithm for selective averaging of evoked potentials.
Demiralp, Tamer   +3 more
core  

“Smelltronics”—From Gas to Smell Sensing

open access: yesAdvanced Materials, EarlyView.
The emerging field of smelltronics, encompassing sensing technologies for complex volatile organic compounds, holds significant potential for extracting valuable chemical information. It facilitates the noninvasive, real‐time monitoring of humans, food, and the environment.
Takeshi Ono   +7 more
wiley   +1 more source

Altered stimulus frequency and intensity dependence of the somatosensory evoked potential in rats after acute application of two mitochondrial toxins [PDF]

open access: yes, 2009
Mitochondrial toxins are a special group of toxicants with nervous system ef TRACT - fects. The resulting nervous system damage could be detected and followed-up by means of functional biomarkers but these still have to be worked out.
Papp, András   +6 more
core   +1 more source

Sustainable Poly(Lactic Acid)/Graphene Oxide Bioelectronic Platform for Neurotransmitters Sensing and Tunable Stimulation of Astrocytes

open access: yesAdvanced Materials, EarlyView.
This work introduces sustainable PLA/graphene oxide bioelectronic interfaces featuring electrodes with tunable conductivity and strong electrocatalytic performance. These platforms were used to implement a new method for tuning astrocyte Ca2+ signaling and for the efficient detection of key biomarkers.
Alessandra Scidà   +15 more
wiley   +1 more source

Paying attention to orthography: A visual evoked potential study

open access: yesFrontiers in Human Neuroscience, 2013
In adult readers, letters and words are rapidly identified within visual networks to allow for efficient reading abilities. Neuroimaging studies of orthography have mostly used words and letter strings that recruit many hierarchical levels in reading ...
Anthony Thomas Herdman, Osamu eTakai
doaj   +1 more source

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