Results 31 to 40 of about 17,118 (247)

Optogenetics and deep brain stimulation neurotechnologies [PDF]

open access: yes, 2015
Brain neural network is composed of densely packed, intricately wired neurons whose activity patterns ultimately give rise to every behavior, thought, or emotion that we experience. Over the past decade, a novel neurotechnique, optogenetics that combines
A Berndt   +58 more
core   +2 more sources

Channelrhodopsins: A bioinformatics perspective

open access: yesBiochimica et Biophysica Acta (BBA) - Bioenergetics, 2014
Channelrhodopsins are microbial-type rhodopsins that function as light-gated cation channels. Understanding how the detailed architecture of the protein governs its dynamics and specificity for ions is important, because it has the potential to assist in designing site-directed channelrhodopsin mutants for specific neurobiology applications.
Coral del Val   +3 more
openaire   +2 more sources

A wirelessly controlled implantable LED system for deep brain optogenetic stimulation

open access: yesFrontiers in Integrative Neuroscience, 2015
In recent years optogenetics has rapidly become an essential technique in neuroscience. Its temporal and spatial specificity, combined with efficacy in manipulating neuronal activity, are especially useful in studying the behavior of awake behaving ...
Mark A. Rossi   +7 more
doaj   +1 more source

Optogenetics in Brain Research: From a Strategy to Investigate Physiological Function to a Therapeutic Tool

open access: yesPhotonics, 2019
Dissecting the functional roles of neuronal circuits and their interaction is a crucial step in basic neuroscience and in all the biomedical field. Optogenetics is well-suited to this purpose since it allows us to study the functionality of neuronal ...
Elena Montagni   +3 more
doaj   +1 more source

Timing Control of Single Neuron Spikes with Optogenetic Stimulation [PDF]

open access: yes, 2018
This paper predicts the ability to externally control the firing times of a cortical neuron whose behavior follows the Izhikevich neuron model. The Izhikevich neuron model provides an efficient and biologically plausible method to track a cortical neuron'
Eckford, Andrew W.   +3 more
core   +2 more sources

Diversity of Chlamydomonas Channelrhodopsins [PDF]

open access: yesPhotochemistry and Photobiology, 2011
AbstractChannelrhodopsins act as photoreceptors for control of motility behavior in flagellates and are widely used as genetically targeted tools to optically manipulate the membrane potential of specific cell populations (“optogenetics”). The first two channelrhodopsins were obtained from the model organism Chlamydomonas reinhardtii (CrChR1 and CrChR2)
Sing-Yi, Hou   +6 more
openaire   +2 more sources

The Stability of Glutamatergic Synapses Is Independent of Activity Level, but Predicted by Synapse Size

open access: yesFrontiers in Cellular Neuroscience, 2019
Neuronal activity is thought to drive the remodeling of circuits in the mammalian cerebral cortex. However, its precise function in the underlying formation and elimination of glutamatergic synapses has remained controversial.
Dylan P. Quinn   +6 more
doaj   +1 more source

Practical considerations in an era of multicolor optogenetics

open access: yesFrontiers in Cellular Neuroscience, 2023
The ability to control synaptic communication is indispensable to modern neuroscience. Until recently, only single-pathway manipulations were possible due to limited availability of opsins activated by distinct wavelengths.
Daniel J. Rindner, Gyorgy Lur
doaj   +1 more source

From channelrhodopsins to optogenetics

open access: yesEMBO Molecular Medicine, 2013
We did not expect that research on the molecular mechanism of algal phototaxis or archaeal light‐driven ion transport might interest readers of a medical journal when we conceived and performed our experiments a decade ago. On the other hand, it did not escape our attention that channelrhodopsin is helping an ever‐increasing number of researchers to ...
Hegemann, Peter, Nagel, Georg
openaire   +3 more sources

Divergent projections of the prelimbic cortex bidirectionally regulate active avoidance

open access: yeseLife, 2020
The prefrontal cortex (PFC) integrates incoming information to guide our actions. When motivation for food-seeking competes with avoidance of danger, the PFC likely plays a role in selecting the optimal choice. In platform-mediated active avoidance, rats
Maria M Diehl   +6 more
doaj   +1 more source

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