Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Stress: General Loading Conditions01:15

Stress: General Loading Conditions

300
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.
The shearing force, possessing potential directionality within the plane of the section, is simplified into two component forces running parallel to the x and y axes....
300
Stress Concentrations in Circular Shafts01:18

Stress Concentrations in Circular Shafts

165
Consider the elastic torsion formula, which applies to a circular shaft with a consistent cross-section. This formula assumes that the shaft's ends are loaded with rigid plates firmly attached. However, in many cases, torques are applied to the shaft through mechanisms like flange couplings or gears, which are connected by keys inserted into keyways. This application method modifies the stress distribution near the point of torque application, causing it to deviate from the distributions...
165
Introduction to Stress and Lifestyle01:27

Introduction to Stress and Lifestyle

80
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...
80
Physiological Foundation of Stress01:24

Physiological Foundation of Stress

46
Stress triggers a coordinated physiological response involving the sympathetic nervous system (SNS) and the hypothalamic-pituitary-adrenal (HPA) axis. This dual activation ensures that the body is prepared for both immediate and prolonged stress management. The process begins with the perception of a stressor. This initial phase activates the SNS, leading to the rapid release of adrenaline (epinephrine) from the adrenal glands.
Role of the Sympathetic Nervous System
Adrenaline triggers the...
46
Stress on an Oblique Plane01:16

Stress on an Oblique Plane

509
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...
509
Stress Prevention and Stress Management Techniques VI01:30

Stress Prevention and Stress Management Techniques VI

27
Adopting a healthier lifestyle often requires overcoming significant challenges, but leveraging psychological, social, and cultural resources can facilitate meaningful change. Effective self-change hinges on understanding and applying key tools such as motivation and goal setting, which help sustain efforts toward long-term health benefits.
Motivation and Self-Determination
Motivation, the driving force behind behavior, plays a pivotal role at every stage of the change process. The research...
27

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Kinematic signatures in reaching movements during spaceflight provide evidence that humans underestimate body mass in microgravity.

eLife·2026
Same author

Development of an early prediction model for ICU-acquired weakness in sepsis using PNI and SII.

The International journal of artificial organs·2026
Same author

Perceptual prediction error supports implicit process in motor learning.

PLoS computational biology·2026
Same author

Cognitive load suppresses explicit learning while sparing implicit learning in visuomotor adaptation.

Journal of neurophysiology·2025
Same author

The Impact of Lighting Conditions on Users' Alertness and Working Memory in Confined Spaces.

PsyCh journal·2025
Same author

Bioactive vascular buds promote collateral vessel formation by grafting on the artificial vessel walls.

Bioactive materials·2025

Related Experiment Video

Updated: Jun 7, 2025

Coherence between Brain Cortical Function and Neurocognitive Performance during Changed Gravity Conditions
12:29

Coherence between Brain Cortical Function and Neurocognitive Performance during Changed Gravity Conditions

Published on: May 23, 2011

19.5K

Stressors affect human motor timing during spaceflight.

Yu Tian1,2, Zhaoran Zhang3, Changhua Jiang1,2

  • 1China Astronaut Research and Training Center, Beijing, China.

NPJ Microgravity
|November 20, 2024
PubMed
Summary
This summary is machine-generated.

Spaceflight stressors, beyond microgravity, significantly impair astronaut motor timing. This study found increased central nervous system noise, not motor execution issues, caused these performance deficits.

More Related Videos

Low-cost Protocol of Footprint Analysis and Hanging Box Test for Mice Applied the Chronic Restraint Stress
06:38

Low-cost Protocol of Footprint Analysis and Hanging Box Test for Mice Applied the Chronic Restraint Stress

Published on: January 23, 2019

18.4K
Restraint to Induce Stress in Mice and Rats
03:48

Restraint to Induce Stress in Mice and Rats

Published on: December 6, 2024

1.1K

Related Experiment Videos

Last Updated: Jun 7, 2025

Coherence between Brain Cortical Function and Neurocognitive Performance during Changed Gravity Conditions
12:29

Coherence between Brain Cortical Function and Neurocognitive Performance during Changed Gravity Conditions

Published on: May 23, 2011

19.5K
Low-cost Protocol of Footprint Analysis and Hanging Box Test for Mice Applied the Chronic Restraint Stress
06:38

Low-cost Protocol of Footprint Analysis and Hanging Box Test for Mice Applied the Chronic Restraint Stress

Published on: January 23, 2019

18.4K
Restraint to Induce Stress in Mice and Rats
03:48

Restraint to Induce Stress in Mice and Rats

Published on: December 6, 2024

1.1K

Area of Science:

  • Space Medicine
  • Neuroscience
  • Human Physiology

Background:

  • Astronauts require intact motor function for space missions, but microgravity disrupts the sensorimotor system.
  • Spaceflight involves stressors like sleep loss and confinement that may affect motor performance, though evidence is limited.

Purpose of the Study:

  • To investigate the impact of spaceflight stressors on motor performance, independent of microgravity.
  • To differentiate between central and peripheral effects on motor timing during space missions.

Main Methods:

  • Twelve taikonauts performed a motor timing task during spaceflight on the China Space Station.
  • Performance was compared to pre-flight, post-flight, and ground control data.
  • Model-based analysis was used to identify the source of timing deficits.

Main Results:

  • Astronauts exhibited significantly increased motor timing variance during spaceflight.
  • This deficit persisted even when the task minimized microgravity's direct impact.
  • Analysis indicated increased central noise, not impaired motor execution, as the cause.

Conclusions:

  • Nonspecific stressors encountered during spaceflight profoundly impact astronaut motor performance.
  • Central nervous system noise is a key factor affecting motor timing in astronauts.
  • Understanding these effects is crucial for maintaining astronaut health and mission success.