The latest work paints a picture of LSD and some other hallucinogens as drugs that can decrease modularity and connectivity
within brain networks while enhancing the brain's overall connectivity, explains Frederick Barrett, a cognitive neuroscientist at Johns Hopkins University who has studied hallucinogenic drug effects but was not involved in the research released this week.
The negative association between λ and IQ suggests a strong positive association between the level of global communication efficiency
within the brain network and intelligence.
Not exact matches
Adversity, especially in early childhood, has a powerful effect on the development of the intricate stress - response
network within each of us that links together the
brain, the immune system, and the endocrine system (the glands that produce and release stress hormones, including cortisol).
The programme included arterial spin labelling, an MRI method to measure blood flow
within the
brain; resting - state MRI, to assess functional connections
within and between
brain networks; and MEG, a method to detect
brain waves.
Governor Ambode also flagged off the commissioning the construction of a
network of roads
within the boundaries of Lagos and Ogun States, saying that it was in honour of Asiwaju Bola Ahmed Tinubu, whom he described as the
brain behind the 21st century Lagos.
Alterations in the
brain within the region of the visual recognition
network might be related to impaired selective attention and working memory in MDD, Dr. Zhao indicated.
In their research with rhesus macaques, it was found that the three
brain areas AIP, F5 and M1 that are responsible for planning and executing hand movements, perform different tasks
within their neural
network.
Seeking additional insight into similar mechanisms at work in other centers of the
brain, Donato and his team discovered that the signal to develop one area known to be involved in more abstract functions, including memory and navigation, originated from deep
within the
brain, in a specific population of neurons that kicks off the maturation of an entire neural
network.
The group's work is particularly significant because they showed for the first time how the importance of individual nodes
within functional
brain networks fluctuates on timescales spanning tens of seconds up to days.
«When different
brain regions assume the highest importance
within a functional
brain network is the key to improving both prediction and control of epileptic seizures,» Lehnertz said.
«Literally
within a tenth of a second before you move your eyes, there is this incredible flash of
network activity in the front of the
brain, and then the eyes move,» Schroeder says.
«New developments in
network theory are providing powerful tools to construct so - called «functional
networks» from observations of
brain activities such as the electroencephalogram (EEG), and helping to identify the important nodes and links
within such
networks,» Lehnertz said.
The researchers used imaging technology that tracks both
brain blood flow — as a measure of energy use — and the organization and strength of connections
within intrinsic neural
networks.
The researchers then used functional magnetic resonance imaging (fMRI) to scan 21 of the participants»
brains while they viewed pairs of short film clips showing classmates of varying status
within this social
network, telling them all they needed to do was indicate whether the clips in each pair were the same or different, and that this task was unrelated to the first part of the experiment.
Research published today in Nature Human Behavior shows seeing familiar people activates a
network of
brain regions that appears to encode their position
within the social group.
Using algebraic topology in a way that it has never been used before in neuroscience, a team from the Blue
Brain Project has uncovered a universe of multi-dimensional geometrical structures and spaces within the networks of the b
Brain Project has uncovered a universe of multi-dimensional geometrical structures and spaces
within the
networks of the
brainbrain.
Acting like synapses in the
brain, the metal - oxide memristor array was capable of learning and re-learning input patterns in an unsupervised manner
within a probabilistic winner - take - all (WTA)
network.
The over-activated protein kinase p38 MAPK damages the wiring of the communication
network within the
brain.
The researchers concluded that in the early stages after stroke, improvements in voluntary movement can be attributed to a reduction in
brain swelling because of the trauma and other spontaneous repairs, while later improvements result from «neuronal plasticity» — the reorganization or regeneration of nerve cells
within the spinal cord in response to changes in the nerve
network.
NIBIB - funded researchers at the University of Washington have pioneered an approach to image functional activity in the
brains of individual fetuses, allowing a better look at how functional
networks within the
brain develop.
All
brain functions depend on proper connections
within specific
networks of neurons.
«We wanted to test the hypothesis that these various stimulation sites are actually different spots
within the same
brain network,» explains Fox.
Recently, these regions have been reported to form functional hubs
within the cortical
brain network (Buckner et al., 2009).
Next, the association between
brain network organization and individual variation in intelligence was examined by correlating the full - scale IQ scores with the λ and γ values of the individual
brain networks within the clear small - world range of 0.3 ≤ T ≤ 0.5.
Normally, neurons start life deep
within the developing
brain, migrate out to the surface and then make a
network of connections with others, but Sandrine Humbert's group showed that those without huntingtin get stuck, never making it to where they need to go.
In trance,
brain networks displayed notable reconfigurations, including increased connectivity in regions associated with internal thought (the default mode's posterior cingulate cortex) and cognitive control (dorsal anterior cingulate cortex and insula), as well as decreased connectivity
within the brainstem and auditory pathway.
These in - silica
brains, or artificial neural
networks, are helpful in that various methods to test the neural system
within the computer can be rapidly explored and then translated to useful experiments in real, living systems.
By inserting these proteins into the living
brain, we can study and perturb different elements of neural circuits, giving us a picture of how individual components function
within the complex
network.
These 2 modalities were used to investigate connectivity
within the default mode
network, a set of
brain regions — including medial prefrontal cortex (MPFC), medial temporal lobes (MTLs), and posterior cingulate cortex (PCC) / retropslenial cortex (RSC)-- implicated in episodic memory processing.
Oxytocin and dopamine signalling
within connected
brain areas of the reward - processing
network drive social bonding behaviours but the neural mechanisms have been unclear.
Modularity describes specialized processing
within dedicated
brain regions, whereas connectivity relates to contemporaneous information flow across large - scale distributed
networks.
This intermission allows the
brain's chemicals to replenish
within the resting
network.
Several structures located deep
within the
brain, such as the hippocampus (responsible for the formation and storage of memories) and the thalamus (involved in the regulation of sensory perception), comprise the limbic system, a complex
network that controls our emotional responses, survival instincts, memory creation, and memory retrieval.
«An amalgamation of my experience as a therapist and musician, the purpose of my work is to assist patients / clients in the resolution of their past story that is told as illness, hardwired into the neural
networking of the
brain and imprinted
within the mind, thereby effecting present thought and perception.
Every time we use a
brain cell or a particular
brain network the connections
within that
network become stronger, more sensitive, and more efficient through «use - dependent» neural processes.