Results 41 to 50 of about 18,484 (195)

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

Preference of Proteomonas sulcata anion channelrhodopsin for NO3− revealed using a pH electrode method

open access: yesScientific Reports, 2021
Ion channel proteins are physiologically important molecules in living organisms. Their molecular functions have been investigated using electrophysiological methods, which enable quantitative, precise and advanced measurements and thus require complex ...
C. Kikuchi   +5 more
semanticscholar   +1 more source

Proton transfer pathway in anion channelrhodopsin-1

open access: yeseLife, 2021
Anion channelrhodopsin from Guillardia theta (GtACR1) has Asp234 (3.2 Å) and Glu68 (5.3 Å) near the protonated Schiff base. Here, we investigate mutant GtACR1s (e.g., E68Q/D234N) expressed in HEK293 cells.
Masaki Tsujimura   +4 more
semanticscholar   +1 more source

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

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

Optogenetic perturbations reveal the dynamics of an oculomotor integrator [PDF]

open access: yes, 2014
Many neural systems can store short-term information in persistently firing neurons. Such persistent activity is believed to be maintained by recurrent feedback among neurons.
Arrenberg, AB   +4 more
core   +2 more sources

Channelrhodopsin-mediated optogenetics highlights a central role of depolarization-dependent plant proton pumps

open access: yesProceedings of the National Academy of Sciences of the United States of America, 2020
Significance People for centuries are puzzled how living creatures like plants sense their environment. Plants employ electrical signals to communicate a cue-dependent local status between plants cells and organs.
Antonella Reyer   +11 more
semanticscholar   +1 more source

Optogenetic stimulation of medial amygdala GABA neurons with kinetically different channelrhodopsin variants yield opposite behavioral outcomes

open access: yesbioRxiv, 2021
Optogenetic manipulation of genetically-specified neuron populations has become a key tool in circuit neuroscience. The medial amygdala (MeA) receives pheromone information about conspecifics and has crucial functions in social behaviors; interestingly ...
Aiste Baleisyte   +2 more
semanticscholar   +1 more source

Specificity, Versatility, and Continual Development: The Power of Optogenetics for Epilepsy Research

open access: yesFrontiers in Cellular Neuroscience, 2018
Optogenetics is a powerful and rapidly expanding set of techniques that use genetically encoded light sensitive proteins such as opsins. Through the selective expression of these exogenous light-sensitive proteins, researchers gain the ability to ...
Zoé Christenson Wick   +1 more
doaj   +1 more source

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