A recent study by Max Planck Florida Institute for Neuroscience researchers found that neighboring dendritic spines within a few micrometers of each other share similar functional properties, regardless of the diversity of sensory features they encode. This discovery suggests that local order in dendritic spine functional properties ma...
Researchers at Max Planck Florida Institute for Neuroscience have developed a new tool called vSLENDR, which enables precise genome editing in post-mitotic neurons of the brain. This breakthrough technology utilizes CRISPR-Cas9 and an adeno-associated virus to increase the efficiency and flexibility of HDR DNA repair.
Researchers at MPFI discovered significant regional differences among chandelier cells in the hippocampus and neocortex. Chandelier cells exhibit distinct characteristics, including expanded axonal arbors, increased connections, and differential gene expression.
Researchers will use state-of-the-art imaging techniques to gain new insights into neural circuit function, critical for addressing visual and neurological disorders. The grant aims to fill a major gap in understanding how neurons process information, crucial for treating brain-related conditions.
Ryohei Yasuda, Scientific Director of MPFI, received the 2017 Nakaakira Tsukahara Memorial Prize for his groundbreaking work on synaptic plasticity. His research focuses on understanding the molecular mechanisms underlying neural circuit function and memory formation.
Researchers at MPFI uncovered the role of voltage-gated Ca2+ channels in determining neurotransmitter release and brain function. The team developed new methods to directly monitor channel impact, revealing a previously unknown region of the alpha subunit controlling channel positioning.
Researchers at MPFI have developed a novel technique to selectively target cerebellar interneurons, which are crucial for regulating motor behavior and learning. This breakthrough allows scientists to manipulate the activity of these cells, providing new insights into the role of interneurons in cerebellar function.
Researchers have developed a new technique called Cal-Light to visualize and control neuronal activity. This tool allows for the observation of specific populations of cells implicated in particular behaviors, enabling precise manipulation and dissection of complex neural circuits.
Chandelier cells, a type of inhibitory interneuron, develop their connections differently than other neurons. Researchers found that only synapses on axon initial segments contain molecules, while the rest appear empty throughout development.
Max Planck Florida Institute for Neuroscience researchers optimized imaging methods to visualize CaMKII activation induced by calcium level increases. They found that CaMKII activity spiked in response to each pulse, just like calcium, but with longer-lasting and step-wise patterns that influenced synapse strength and structure.
Researchers at Max Planck Florida Institute for Neuroscience developed iTango, a light-sensitive technique to visualize and manipulate neuromodulation. The technique allows for increased spatial and temporal precision, enabling the identification of specific neurons impacted by neuromodulation and control over behavior.
Researchers at Max Planck Florida Institute for Neuroscience developed a photo-inducible CaMKII inhibitor to study intracellular signaling cascades. The tool revealed that CaMKII activation persists for approximately 1 minute, contradicting previous studies, and is necessary only for short periods of time for LTP and animal learning.
Scientists at Max Planck Florida Institute for Neuroscience created new molecular biosensors to study the activity of ERK and PKA proteins in dendritic spines. The team found that these proteins' activity spreads along the length of the dendrite, influencing nearby spines.
New insights reveal that inhibitory neurons contribute to finely-tuned networks in the cortex, linking together neurons with similar functional properties. This discovery raises important questions about how these connections are formed during development.
Scientists at Max Planck Florida Institute for Neuroscience have discovered a novel molecular mechanism behind short-term neuronal plasticity, which may impact motor control. The study found that analog-to-digital facilitation occurs more readily in juvenile brains and depends on Kv3 channel inactivation.
Researchers at Max Planck Florida Institute for Neuroscience developed a new software to automate the process of observing and quantifying long-term structural plasticity in dendritic spines. The software allows for efficient imaging and stimulation of multiple dendritic spines simultaneously, increasing productivity and reducing costs.
Researchers developed a new molecular tag to visualize two signaling proteins' activity in a single dendritic spine in real time. The technique, combining FRET and FLIM, allows for high spatial and temporal accuracy, enabling scientists to study biochemical dynamics of proteins with increased efficiency.
Researchers at MPFI and NYU will use the grant to develop new optogenetic technologies, focusing on synaptic plasticity and its role in learning and memory. The goal is to improve knowledge of biochemical events underlying synaptic plasticity and provide insights into brain disorders.
Researchers have identified an autocrine signaling system within single dendritic spines, leading to spine enlargement and activation of signaling molecules. The findings reveal a three-molecule model of structural plasticity, implicating the localized, coincident activation of Rac1, Cdc42, and RhoA proteins.
Researchers have optimized optogenetic methods to study neural circuits with single neuron resolution. By confining light stimulation to a defined disc-like shape and using spatially restricted ChR expression, they can unmask synaptic connections from neurons whose cell bodies lie close to the dendrites of the postsynaptic cell. This r...
Researchers from Max Planck Florida Institute for Neuroscience developed a spatiotemporally controlled method to induce and visualize synapse formation in cortical neurons. The study reveals that GABA is the common molecule setting the balance between inhibitory and excitatory synaptic contacts in early postnatal stages.
Astrocyte calcium signaling properties studied in visual cortex to understand their role in brain function and potential involvement in multiple brain disorders. The study aims to shed light on fundamental properties of astrocytes, providing a baseline for comparing and testing their role in brain disorders.
Researchers at Max Planck Florida Institute for Neuroscience developed novel approaches to study axonal excitability with unprecedented detail. They discovered that action potentials vary in shape depending on subcellular location and are influenced by potassium channel subtypes.
Scientists at Max Planck Florida Institute for Neuroscience found that dendrites play an active role in cortical processing and shape how neurons encode visual information. The arrangement of synaptic connections within the dendritic field supports this active role, enabling neurons to exhibit diverse selectivity.
Researchers have developed a new method called SLENDR that allows precise labeling of proteins in brain cells using CRISPR/Cas9. This enables scientists to study brain development and function with unprecedented accuracy, revealing previously undescribed behaviors of protein kinase C.
Scientists at MPFI have discovered a simple rule that explains how neural circuits combine information supplied by different types of cells in the retina to build a coherent representation of visual information. The discovery reveals that fine-scale retinal spatial information is preserved by OFF response regions, while ON response reg...
Max Planck Florida scientists have optimized techniques for studying motor learning in neurons of the cerebellum, enabling prolonged assessment of neural activity. This breakthrough allows for further characterization of continuously engaged neurons during motor activity and normal behavior.
Researchers at Max Planck Florida Institute for Neuroscience used electrophysiological and optical approaches to visualize and manipulate neuronal activity in individual neurons of the somatosensory cortex. They found that the formation of functional microcircuits was determined by specific settings and the number of neurons stimulated...
A new study reveals GIT proteins as critical presynaptic regulators of synaptic strength, uncovering previously unknown roles in regulating neurotransmitter release. This finding has significant implications for understanding neuronal communication and the development of neurological diseases.
Scientists have discovered that most neurons in visual cortex respond selectively to light vs dark stimuli and combine this information with selectivity for other stimulus features. This discovery sheds new light on how the brain encodes black and white information.
Researchers at MPFI and FIAS will analyze large datasets to understand spontaneous brain activity in early visual cortex development. They aim to extract general principles of how this activity influences cortical development.
Ryohei Yasuda, Max Planck Florida Institute for Neuroscience Scientific Director, has received a $4.8 million NIH Pioneer Award to support his lab's high-risk, high-reward projects in biochemical signaling and mental disorders like dementia and autism.
Researchers created detailed 3D models of rodent brain's sensory cortex, showing interconnected networks across cortical columns. The study found that neurons in different cell types project to multiple columns, with non-uniform axon projection patterns, and these pathways can encode complex sensory information.
Researchers at the Max Planck Florida Institute for Neuroscience will investigate a newly discovered circuit in the visual cortex using novel imaging technologies. The project aims to understand how this circuit processes visual information and interacts with other neural circuits.
Researchers have successfully developed an atomic force microscopy system that can image structural dynamics of living neurons with high spatial and temporal resolution. The new system enables analysis of cell morphology changes with a resolution ~20-100 fold better than that of a standard light microscope.
The NIH has awarded a $2.4 million grant to investigate how synaptic vesicle activity modulates auditory information transfer and impacts sound perception. Dr. Samuel Young's lab aims to uncover new cellular and molecular mechanisms involved in early stages of hearing.
Researchers at Max Planck Florida Institute for Neuroscience and Frankfurt Institute for Advanced Studies report substantial postnatal changes in the functional properties of brain circuits. These changes improve the ability of brain cells to encode information, enhancing brain function.