When we imagine the outcome of future events, two sub-networks of the brain become active. One of the sub-networks focuses on creating the new event in our imagination, the other evaluates whether the event is positive or negative.
In both neurotypical males and people on the autism spectrum, researchers found a reduction in resting-state brain function in the default mode network. Additionally, connectivity between the two hemispheres in the visual cortex is reduced in women with ASD.
As with other psychedelics, salvinorin A increased activity across the brain. However, salvinorin A use resulted in more random and disconnected signaling in the default mode network, a brain network associated with relaxing and daydreaming.
From inspiring creativity to promoting overall brain health, researchers say it's important to embrace boredom from time to time.
Researchers have uncovered the neural mechanism underlying rumination. The study reports when rumination occurs, coupling between the core and medial temporal lobe subsystems of the default mode network becomes elevated, while coupling between the core and dorsomedial prefrontal cortex decreases.
People with schizotypal traits exhibited increased structural connectivity probability within the task control network and default mode network. They also had increased variability and decreased stability of functional connectivity within the DMN and between the auditory and subcortical networks.
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The brain quickly transitions from one network to another in regular patterns. The transition trajectories constitute a temporal circuit where the conscious brain cycles through a structured pattern of states over time.
Transcranial focused ultrasound (tFUS) can help elevate mood and decrease activity in brain networks associated with psychiatric disorders when directed at the ventrolateral prefrontal cortex.
Using a modified story memory technique, people with multiple sclerosis showed improvements in learning and memory. Additionally, fMRI neuroimaging revealed changes in brain activity related to working memory and word encoding.
Yoga has a positive effect on the structure and function of key brain areas associated with memory. Findings provide evidence that yoga may hold promise in mitigating age-related and neurodegenerative decline.