Articles tagged with Cortical Maps
A study among WTC responders with chronic PTSD found measurable physical changes in their brain structure, including cortical changes and imbalance of myelinated to unmyelinated neurons. These changes were most strongly associated with re-experiencing symptoms in individuals with PTSD.
Despite long-held assumptions, a new study reveals that the brain's somatosensory cortex holds a stable 'body map' even after limb loss. The findings have significant implications for treating phantom limb pain and restoring sensation in prosthetic limbs via brain-computer interfaces.
Researchers analyzed rare intracranial EEG data to identify unique computational methods for refining brain cortex mapping. The study offers new insights into early detection of neurodegenerative and sleep disorders, improving diagnosis and prevention of neurological diseases.
Researchers at ISTA discovered that neural activity patterns during sleep reflect recently learned spatial memories and transform into those seen later upon awakening. This 'representational drift' phenomenon optimizes memory representations for long-term storage, allowing the brain to free up resources for new memories.
Researchers discovered a horizontally distributed and modular organization of cortical movement units, with different types of neurons forming functional clusters in distinct regions. The study also found that the brain re-networks and adapts to learn new motor skills.
A novel study finds that monitoring cortical microstructural change in the brain using diffusion weighted MRI scans may help identify individuals at risk for cognitive decline and Alzheimer's disease. Tracking these changes over time could provide precious time for disease-modifying treatments.
The UMass Amherst team has developed a first-of-its-kind dual-color optoelectronic neural probe, enabling bidirectional control of brain activity in specific cortical layers. This innovation holds promise for advancing our understanding of diseases such as epilepsy and Parkinson's disease.
Researchers created comprehensive fine-grained functional maps of infant brain networks, providing unprecedented details on brain development from birth to two years old. The study revealed novel insights into when different brain functions develop during infancy and provided valuable references for early brain developmental studies.
Researchers created a detailed map of the hippocampus's connections to the rest of the brain, finding fewer links with frontal lobes but more with visual networks. This discovery may change how we think about human memory and cognition, potentially shedding light on why some primates excel at certain memory tasks.
Researchers mapped brain cortex development from two months before birth to two years after, revealing functional regions and growth rates. The study provides a valuable resource for further research on brain development conditions.
Researchers have discovered a prominent network of silencing interneurons in the human cortex, which could be linked to enhanced working memory and reasoning abilities. This unique network relies on abundant connections between inhibitory interneurons and is distinct from those found in mice.
Researchers propose a new method to study neural networks using intrinsic signal optical imaging (ISOI), which provides detailed maps of brain activity in living subjects. The study shows that ISOI can reveal cortical architecture at columnar resolution, offering a more accurate picture of brain network activity than existing methods.
Researchers at State University of New York College of Optometry propose a general theory of cortical map formation that explains the diversity of visual maps in nature. The theory suggests that map diversity emerges from variations in thalamic afferent density sampling sensory space, leading to increased cortical areas and sorting of ...
Researchers discovered that orthogonal organization in retinal mosaics is mirrored onto the primary visual cortex, initiating clustered topography of higher visual areas. This finding provides insights into efficient sensory information processing and developmental strategy of brain circuitry.
A KAIST research team identified a retino-cortical mapping ratio as the prime determinant in the topography of cortical organization, resolving a long-standing puzzle in understanding visual neuroscience. The study found that evolutionary variation in biological parameters induces distinct functional circuits in the visual cortex acros...
Research reveals brain areas can be repurposed to process information from unrelated body parts, contradicting previous assumptions about body map limitations. Functional MRI scans showed unused hand regions activated by movements of other body parts, suggesting a more dynamic and adaptable brain network.
Researchers from UMH-CSIC Institute of Neuroscience found that the brain's somatosensory cortex is formed and functional before birth due to spontaneous electrical activity of the embryonic thalamus. This discovery suggests a critical role for thalamic waves in organizing the cortical map and shaping sensory processing.
A new detailed map of the brain's cerebral cortex will aid researchers studying brain disorders and elucidate human uniqueness. The map divides both hemispheres into 180 areas based on physical and functional differences.
Recent research reveals that visual brain maps are dark-centric, with greater precision for darker stimuli. This dark-centric organization enables the brain to represent different positions of light spots as rotating around a dark anchor in visual space.
Researchers at the Salk Institute found that altering cortical layout can produce significant changes in connected brain regions, potentially underlying neural developmental problems. This discovery provides insights into the development of autism and other neural disorders.
A new invasive imaging technique monitors brain function in patients with diseases such as epilepsy, providing real-time analysis at a higher resolution than current technologies. The procedure uses pre-placed electrodes to image the brain, offering unprecedented insight into its function.
A new study reveals that stimulation of female genital regions activates distinct sites in the sensory cortex, contradicting claims of clitoral superiority. Researchers mapped responses to clitoral, vaginal, cervical, and nipple self-stimulation using fMRI, demonstrating significant activation in specific brain areas.
Researchers at Ruhr-University Bochum successfully visualized distinct activity patterns overlaid in primary visual cortex, indicating simultaneous encoding of object orientation and motion direction speed. This breakthrough demonstrates the brain's ability to process multiple visual cues simultaneously.
Researchers used a novel 3D mapping technique to analyze MRI data from Alzheimer's patients and those with mild cognitive impairment (MCI). The study found progressive brain atrophy in both groups, but MCI patients showed more cortical damage characteristic of Alzheimer's. This innovative method outperforms existing 3D imaging techniques.
Researchers at Vanderbilt University discovered that the brain's cortical map processes touch sensations based on perceived locations, not actual physical positions. This finding challenges long-held theories about the nature of the 'map' in the brain and sheds light on how the brain processes sensory information.
A new brain atlas developed by neuroscientist David Van Essen aims to improve our understanding of the brain's structure and function. The atlas provides a comprehensive map of the brain's cortical and cerebellar regions, which are essential for thought, learning, emotion, perception, sensation, and movement.
Researchers have created detailed maps of the brain's cerebral and cerebellar cortex, which will help physicians understand brain damage and guide neurosurgeons. The maps will be freely available online, revolutionizing the field of neuroscience.