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Related Concept Videos

Lateralization01:28

Lateralization

1.3K
Brain lateralization refers to the division of mental processes and functions between the two hemispheres of the brain, a phenomenon that optimizes neural efficiency and underpins complex abilities in humans. This specialization allows each hemisphere to perform tasks where it has a comparative advantage, facilitating more refined cognitive capabilities across different domains.
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Cerebral Hemispheres01:05

Cerebral Hemispheres

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The human brain, a complex organ, is functionally divided into two cerebral hemispheres—left and right. These hemispheres are interconnected by a structure of paramount importance, the corpus callosum. This substantial bundle of neural fibers is not just a bridge between the hemispheres but a crucial element for the brain's comprehensive functioning. It enables efficient communication between the two hemispheres, allowing each side of the brain to control and receive sensory and motor...
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Motor and Sensory Areas of the Cortex01:14

Motor and Sensory Areas of the Cortex

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The cerebral cortex, the brain's outermost layer, is pivotal in processing complex cognitive tasks, emotions, and various sensory inputs and executing voluntary motor activities. This intricate structure is divided into three primary functional areas: the motor areas, sensory areas, and association areas.
Motor Areas
The motor areas located in the frontal lobe are central to controlling voluntary movements. This region is further subdivided into the primary motor cortex and the premotor cortex....
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Somatosensory, Motor, and Association Cortex01:23

Somatosensory, Motor, and Association Cortex

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The somatosensory cortex in the parietal lobes is crucial for interpreting sensory data such as touch, temperature, and proprioception. The somatosensory cortex, situated in the parietal lobes, plays a vital role in interpreting sensory information like touch, temperature, and proprioception—awareness of body position. This specialized brain region features an organized structure wherein neurons at the top primarily process sensations originating from the lower body. In contrast, those at...
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Association Areas of the Cortex01:21

Association Areas of the Cortex

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Association areas are regions of the cerebral cortex that do not have a specific sensory or motor function. Instead, they integrate and interpret information from various sources to enable higher cognitive processes such as memory, learning, and decision-making. Some key association areas include the following:
Prefrontal Association Area: This area is located in the frontal lobe and is involved in planning, decision-making, and moderating social behavior. It connects with primary motor areas,...
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Lobes of the Cerebrum01:22

Lobes of the Cerebrum

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The cerebral cortex, a critical structure of the brain, is intricately divided into two hemispheres, each consisting of four distinct lobes: occipital, temporal, frontal, and parietal. These lobes function cooperatively to regulate various cognitive and sensory functions, forming the basis of our complex neural capabilities.
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The frontal lobes, located behind the forehead, are the command center of our brain, controlling personality, intelligence, and voluntary muscle movements....
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Measurement of Fronto-limbic Activity Using an Emotional Oddball Task in Children with Familial High Risk for Schizophrenia
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Dorsal anterior cingulate cortex in typically developing children: Laterality analysis.

Jue Wang, Ning Yang, Wei Liao

    Developmental Cognitive Neuroscience
    |November 26, 2015
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    Summary
    This summary is machine-generated.

    This study reveals complex brain development in children, showing how the dorsal anterior cingulate cortex (dACC) develops differently in boys and girls. These findings offer insights into brain lateralization and its relation to sex and age.

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    Area of Science:

    • Neuroscience
    • Developmental Neuroscience
    • Brain Imaging

    Background:

    • The dorsal anterior cingulate cortex (dACC) plays a crucial role in cognitive functions.
    • Understanding dACC lateralization in typically developing children is essential for insights into neurodevelopmental trajectories.
    • Previous research in adults suggests region-specific gray matter density asymmetry in the dACC.

    Purpose of the Study:

    • To investigate dACC laterality in typically developing children.
    • To explore sex and age-related differences in dACC structure and function.
    • To elucidate the dynamic structure-function relationships during neurodevelopment.

    Main Methods:

    • Utilized neuroimaging techniques on 84 right-handed children (ages 6-16, 42 boys).
    • Performed gray matter density analysis to assess structural asymmetry.
    • Conducted intrinsic connectivity analysis to evaluate functional lateralization.

    Main Results:

    • Replicated adult findings of region-specific dACC gray matter asymmetry (leftward superior, rightward inferior).
    • Identified region-specific asymmetric connectivity profiles in the dACC, varying by sex and age.
    • Observed distinct hemispheric involvement of dACC with frontoparietal, visual, and default mode networks, with notable sex and age differences in connectivity patterns.

    Conclusions:

    • The dACC exhibits complex, region-specific lateralization in developing children.
    • Sex and age significantly influence dACC connectivity patterns and their developmental trajectories.
    • Findings provide crucial insights into the dynamic interplay between brain structure, function, and development.