The fetal brain possesses adult-like networks
Features of the functional connectome are present in the fetal brain during the second and third trimesters of pregnancy.... Read More...
neural networks
A new theory of brain organization takes aim at the mystery of consciousness
Entropy during consciousness is higher than during unconscious states.... Read More...
Brain networks more stable in individuals with higher cognitive abilities
Higher intelligence was associated with higher temporal stability of brain network modularity. Brain regions of the dorsal attention network contributed most to the observed effect.... Read More...
Dementia spreads via connected brain networks
A new brain mapping study allows for individual predictions of the progression of frontotemporal dementia.... Read More...
Computer model helps make sense of human memory
A newly developed artificial neural network allowed researchers to insert inhibitory circuits into the model, altering the excitatory circuits and enabling them to extend associative memory.... Read More...
Finding the root of consciousness: Is this brain cell your ‘mind’s eye’?
Researchers believe they have identified specific neurons that are responsible for conscious awareness. Previous studies have implicated both thalamocortical circuits and cortico-cortico circuits in consciousness. The new study reports these networks intersect via L5p neurons. Directly activating L5p neurons made mice react to weaker sensory stimuli. The researchers say if consciousness requires L5p neurons, all brain activity without them must be unconscious.... Read More...
Mice, like humans, fidget when deep in thought
Just like humans, mice fidget more while deep in thought. ... Read More...
Critical role of brain circuits in improving learning and memory revealed
A newly identified neural network in the hippocampal formation plays a critical role in memory and object-location learning. The findings are highly relevant to learning and memory disorders, including Alzheimer's disease.... Read More...
Neurological signals from the spinal cord surprise scientists
A new study challenges existing theories about spinal cord neurons. New findings suggest neurological signals originate from a major, scattered network of cells that send signals to only a few other neurons. ... Read More...
How do brains tune in to one neural signal out of billions?
Two activities support the brain's ability to establish reliable connections in the presence of significant biological background noise. ... Read More...
‘Superagers’ over 80 have the memory and brain connectivity of twenty-somethings
Both the default mode network and salience network in superagers had stronger connectivity than typical older adults and similar connectivity as younger adults. Superagers performed similarly to young adults and better than typical older adults in recognition and episodic memory tasks. ... Read More...
Blue Brain finds how neurons in the mouse neocortex form billions of synaptic connections
Scientists generated statistical instances of the micro-connectome, containing over 10 million neurons. The model spans five orders of magnitude and contains 88 billion synaptic connections.... Read More...