A new study from NYU Langone Health reveals how the brain's hippocampal CA1 region functions as a memory switchboard to balance learning new information with protecting old memories. By using divergent firing patterns, a core group of neurons can manage both incoming and outgoing signals without crossing lines or overwriting existing data. This mechanism helps maintain stability in long-term memory storage while allowing for continuous plasticity during experience.
- The CA1 region acts as a physical hub connecting the CA3 region to the retrosplenial cortex.
- Divergent firing patterns allow shared neurons to serve separate incoming and outgoing communication channels.
- Hub cells remain active during sleep through sharp-wave ripples to facilitate memory consolidation.
- Research provides potential insights into Alzheimer's disease and methods to prevent catastrophic forgetting in artificial intelligence.
- The CA1 region acts as a physical hub connecting the CA3 region to the retrosplenial cortex.
- Divergent firing patterns allow shared neurons to serve separate incoming and outgoing communication channels.
- Hub cells remain active during sleep through sharp-wave ripples to facilitate memory consolidation.
- Research provides potential insights into Alzheimer's disease and methods to prevent catastrophic forgetting in artificial intelligence.
This study shows that most variability in neuronal activity across various species and brain regions can be explained by direct dependencies on individual inputs rather than complex interactions between them. Using maximum entropy models equivalent to logistic artificial neurons, researchers found these minimal models capture over 90% of a neuron's variability in the mouse hippocampus and visual cortex, as well as significant portions in C. elegans. The research demonstrates that higher-order correlations and time-delayed dependencies are largely predictable from these simple instantaneous inputs, suggesting most neurons function similarly to perceptrons.
- Direct dependencies explain the vast majority of neuronal activity variability across species.
- Minimal models are mathematically equivalent to logistic artificial neurons or perceptrons.
- Inferred network weights exhibit biological features such as sparsity, heavy-tailed distributions, and directedness.
- Neural communication is highly redundant and remains robust even after significant input loss.
- Direct dependencies explain the vast majority of neuronal activity variability across species.
- Minimal models are mathematically equivalent to logistic artificial neurons or perceptrons.
- Inferred network weights exhibit biological features such as sparsity, heavy-tailed distributions, and directedness.
- Neural communication is highly redundant and remains robust even after significant input loss.
Scientists have mapped the activity that takes place across a mouse's entire brain as it decides how to complete a task - and the results could explain the origin of our gut feelings.
Share a single keyboard and mouse between multiple computers. It's like a software KVM (but without the video). TLS encryption is enabled by default. Wayland is supported. Clipboard sharing is supported.
Open-source KVM software. Input Leap mimics a KVM switch, allowing a single keyboard and mouse to control multiple computers in software. It supports clipboard sharing (except on Linux/Wayland) and is compatible with Windows, macOS, Linux, FreeBSD, and OpenBSD.
Learn how to use your Flipper Zero as a HID controller for your computer or phone. Control presentations, emulate a keyboard, control media players, and more.
New study on mice decision-making reveals that choice is not a singular moment but a reflection of the brain’s preexisting state.
The research, using Buridan’s Assay, suggests that the mice’s brain constantly broadcasts its goal, even before options are available, with patterns of neuron activity predicting choice.
Hunger and thirst don’t directly drive behavior; instead, they modulate the brain’s goal-setting, with an element of randomness causing switches between needs, ensuring both are met over tim
The research, using Buridan’s Assay, suggests that the mice’s brain constantly broadcasts its goal, even before options are available, with patterns of neuron activity predicting choice.
Hunger and thirst don’t directly drive behavior; instead, they modulate the brain’s goal-setting, with an element of randomness causing switches between needs, ensuring both are met over tim
echo 'clearing dmesg...';
sudo dmesg -c && clear;
DEVICE=$(rfkill list all | grep -o 'hci*.');
sudo hciconfig ${DEVICE} down;
sudo rmmod btusb;
sudo service bluetooth stop;
sudo modprobe btusb;
sudo hciconfig ${DEVICE} up;
echo 'n~~rfkill:';
rfkill unblock bluetooth;
sudo service bluetooth start;
rfkill list all;
echo "n~~~DMESG:";
sudo dmesg | grep -i bluetooth;
echo 'n~~~bluetooth status:';
sudo service bluetooth status;
echo 'n~~~if failed try manually:';
exit 0
bluetoothctl power on;
bluetoothctl devices;
read DEVICE_TO_CONNECT;
bluetoothctl connect ${DEVICE_TO_CONNECT}
echo "~~~nFINISH UP:n~~~~run bluetoothctl;n~~~~~power on && devices && connect";
sudo dmesg -c && clear;
DEVICE=$(rfkill list all | grep -o 'hci*.');
sudo hciconfig ${DEVICE} down;
sudo rmmod btusb;
sudo service bluetooth stop;
sudo modprobe btusb;
sudo hciconfig ${DEVICE} up;
echo 'n~~rfkill:';
rfkill unblock bluetooth;
sudo service bluetooth start;
rfkill list all;
echo "n~~~DMESG:";
sudo dmesg | grep -i bluetooth;
echo 'n~~~bluetooth status:';
sudo service bluetooth status;
echo 'n~~~if failed try manually:';
exit 0
bluetoothctl power on;
bluetoothctl devices;
read DEVICE_TO_CONNECT;
bluetoothctl connect ${DEVICE_TO_CONNECT}
echo "~~~nFINISH UP:n~~~~run bluetoothctl;n~~~~~power on && devices && connect";
The normal xterm mouse functionality for such clicks is still available by holding down the SHIFT key when you press the mouse button
;; Enable mouse support
(unless window-system
(require 'mouse)
(xterm-mouse-mode t)
(global-set-key mouse-4 » (lambda () (interactive) (scroll-down 1)))
(global-set-key mouse-5 » (lambda () (interactive) (scroll-up 1)))
(defun track-mouse (e))
(setq mouse-sel-mode t))
(unless window-system
(require 'mouse)
(xterm-mouse-mode t)
(global-set-key mouse-4 » (lambda () (interactive) (scroll-down 1)))
(global-set-key mouse-5 » (lambda () (interactive) (scroll-up 1)))
(defun track-mouse (e))
(setq mouse-sel-mode t))
