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Related Concept Videos

Lateralization01:28

Lateralization

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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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Stress: General Loading Conditions01:15

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To grasp the intricacy of real-world conditions where multiple loads are applied simultaneously to a structure, one might visualize a section passing through a specific point within a body, aligned parallel to the xy plane. This section is subjected to various forces, including original loads, normal forces, and shearing forces.
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Personality types, particularly Type A and Type B, significantly influence how individuals respond to stress. These personality distinctions are marked by varying levels of ambition, competitiveness, and coping styles, all of which shape an individual's resilience to stressors.
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Introduction to Stress and Lifestyle01:27

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Stress is a multifaceted response to events perceived as challenging or threatening, highlighting physical, emotional, cognitive, and behavioral reactions. Physically, stress can lead to fatigue, sleep disruptions, and various health issues such as frequent colds, chest pains, and nausea. Emotionally, it can manifest as anxiety, depression, irritability, and anger triggered by both minor and major life events. Cognitively, it may result in difficulty in concentration, memory, and...
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Understanding stress on an oblique plane under axial loading is pivotal in material mechanics. This analysis offers insight into a material's durability and strength, which is crucial for civil engineering and structural design. Axial loading refers to force application along the material's central axis, causing compression or elongation and leading to normal stress. Normal stress occurs when a force acts perpendicularly to the material's area, resulting in compressive or tensile...
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Language serves as a bridge between ideas and communication, influencing how individuals perceive and interact with the world. Psychologists have long debated whether language shapes thought or vice versa. This discussion gained grip with Edward Sapir and Benjamin Lee Whorf in the 1940s, who proposed that language determines thought, a concept known as linguistic determinism. They suggested that the vocabulary and structure of a language influence how its speakers think and perceive reality.
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Stress and laterality - The comparative perspective.

Sebastian Ocklenburg1, S Mechiel Korte2, Jutta Peterburs3

  • 1Institute of Cognitive Neuroscience, Biopsychology, Ruhr-University Bochum, Bochum, Germany.

Physiology & Behavior
|June 21, 2016
PubMed
Summary
This summary is machine-generated.

Stress and brain lateralization have a dual relationship. Both acute and chronic stress impact hemispheric asymmetries, often increasing right-hemisphere involvement. Brain lateralization may also protect against stress effects.

Keywords:
CortisolFunctional hemispheric asymmetriesLateralizationSteroid hormonesStress

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Area of Science:

  • Neuroscience
  • Endocrinology
  • Psychology

Background:

  • Functional hemispheric asymmetries are dynamic and influenced by steroid hormones.
  • Research has primarily focused on sex steroid hormones, but glucocorticoids (stress hormones) are increasingly implicated.
  • Glucocorticoids, like cortisol, are key in the body's stress response.

Purpose of the Study:

  • To review the relationship between stress and functional hemispheric asymmetries (laterality).
  • To investigate how stress modulates brain lateralization in humans and other species.
  • To explore the potential protective role of lateralization against stress.

Main Methods:

  • Literature review of studies on stress and laterality.
  • Analysis of research in both human and non-human model species.
  • Synthesis of findings on acute and chronic stress effects on brain asymmetry.

Main Results:

  • A dual relationship exists between stress and laterality.
  • Acute and chronic stress can alter various forms of brain lateralization.
  • Stress often leads to increased right-hemisphere involvement, though not universally.
  • Brain lateralization may offer a protective mechanism against stress.

Conclusions:

  • Glucocorticoids play a significant role in modulating functional hemispheric asymmetries.
  • Stress impacts brain lateralization, with implications for cognitive and behavioral functions.
  • Lateralization represents a crucial aspect of brain architecture that can mitigate stress impacts.